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Overhead power line safety pdf

overhead power line safety pdf In 2016, 53% of all fatal electrical injuries occurred in the Construction The Maine Overhead High Voltage Safety Act Title 35-A Part 1, Chapter 7A This Act details State of Maine rules regarding work around overhead power lines in excess of 600 Volts. Contractors with overhead power lines and underground electrical infrastructure. • Overhead power lines will be considered energized unless they are visibly grounded and the owner/ operator of the lines verifies that they are de-energized per section 2946(d). The responsible party must notify the utility operating the line of the intended work activity. Never touch an overhead line that has been brought down by machinery, or has fallen, eg in a storm. There is a trend toward larger conductors, higher voltages, longer spans and greater ground clearances. Explain and provide hands-on practice in rec­ ognizing hazards and avoiding unsafe conditions with ladders and overhead power lines. If it is identified as a portion of Contact with overhead or underground electric lines can be fatal, whether the lines are carrying a voltage as high as 330,000 volts or as low as 230 volts. [Discuss how de-energizing and grounding are ensured and, if both energized and de- Your safety is our priority. safety of overhead and underground power lines This document supports the Power System Safety Rules and its requirements assembled under Overhead Lines and Equipment - Category 6 and describe safe work practices to be followed for the treatment of hazardous situations. Conductor(s) That part of a cable, overhead line or apparatus intended to conduct the flow of electrical energy. If a person gets too close to a power line that is energized – even without actually touching the power line– an arc of electricity can form in the air connecting the two and cause very serious burns. Factors such as corrosion, improper installation, and A worker was hydro vacuuming a cattle gate near high voltage overhead powerlines. Driveways to residences or residential garages . Of the 1,001 reported power line contact incidents from 2003-2009, nearly 70% resulted in death. You are also placing yourself or your employees in a potentially dangerous situation. and slip hazards. [1] Adherence to these procedures will enable workers to perform their duties with maximum confidence and safety. Reliability Trees represent one of the largest causes of power outages in California. overhead power lines in the same year. Electrocutions happen in less than a second. The rest involved contact of an overhead power line with unspecified parts of the crane. And always maintain a minimum of 10 feet clearance between overhead electrical lines and yourself, any 3. E. Table 17. 200. Add to Cart. Table 3 describes worker activities leading to electrocutions. 4. Overhead power lines can be dangerous for workers. Contact with live electricity can also cause serious burns arising from the discharge of electrical energy. !There is no uniform system for identifying power line voltage. The need for overhead power line safety trainings is best summarized by some of the available data, such as: • Contact with overhead power lines is responsible for the highest number of workplace electrical An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. G. This minimises the risk of accidental contact or near contact with the overhead line by plant and machinery, equipment, scaffolding or other 10 Metres to Safety. 9 MB) Working to keep trees away from power lines (PDF, 2. The worker received a shock when the equipment being used made contact with the overhead powerline. For emergencies call 1850 372 999. SAFETY AROUND HIGH VOLTAGE POWER LINES HAS ALWAYS BEEN SMART. You should clearly mark the location of power lines and the minimum clearance area with signs that say Danger: Overhead Power Lines, Buried Power Lines, Buried Natural Gas Lines or Look Up and Live. above where you will be moving to identify overhead electrical power lines. 1 m . The responsible party and the utility must complete distance from power lines. In fact, power line contact is the largest single cause of fatalities associated with cranes. 0 Symbols 1 1. Unqualified persons: When an unqualified person is working in an elevated position ne ar overhead lines, the location must be such that the person – Identify overhead lines, wire ends, leaning poles and sagging lines – Treat all utility lines as high voltage and assume all lines are energized – Keep yourself, others and equipment at least 30 feet away from downed power lines and electrical equipment until utility representatives arrive to de-energize lines o Always maintain maximum from overhead power lines and the use of power hand tools expose workers to electrocution risks. • The electromagnetic radiation is directly proportional to the current level through the power lines. If you see a tree growing close to a power line, don't try to trim it yourself. 1-15 – Overhead Systems and other standards referenced in the document. • Never approach, attempt to rescue or allow others to approach any machinery or vehicles in contact with power lines. Always follow our safety guidelines. 2. ‘Stay safe, stay clear’. Safety Precautions When There Are Downed Power Lines • Never touch an overhead line if it is down or has fallen, or assume that they are dead. Workers installing a chain link fence directly under an overhead power line were electrocuted when one of the workers raised a long section of top rail and brought it into contact with the line. If you or your company must work near overhead power lines, contact us at the appropriate service center location (see page 5). In 1999, in Japan the first power line designed for 1000 kV with 2 circuits were built, the Kita-Iwaki Power line. Operate machines at a slower -than normal rate when close to power lines. overhead power transmission or distribution lines. When in doubt, contact Duke Energy for clearance information. • When a machine comes into contact with an overhead line, DO NOT allow anyone to come near or touch the machine. !Higher voltages require greater clearances. Overhead electrical power line proximity warning devices (PWDs) are intended to warn personnel if mobile equipment moves within some preselected minimum SAFETY *Source: CPWR Third Quarterly Data Report, 2017, https://bit. 2. Also, select safe locations with ample power line clearance for equipment and materials. The victim was carrying a metal ladder upright to his work van. When working outside, look up and stay away! Keep yourself and equipment at least 10 feet away from overhead power lines. com • Be aware of overhead power lines before selecting trees and other vegetation to plant in your yard. ) line appears dead, do not touch it, or any part of the machine. 1 Objective 2 1. Posted 01. You must. Safe working near overhead power lines in agriculture Health and Safety Executive Shock horror Safe working near overhead power lines in agriculture This is a web-friendly version of leaflet INDG389, reprinted and redesigned 05/09 1 of 12 pages This leaflet highlights the risks associated with overhead power lines in agriculture and sets out Overhead power line safety training is essential to ensure safety. ” • Always assume that a power line is “live” or energized. To ensure you stay safe, stay clear of overhead, underground and fallen electricity wires, always look out for electricity wires when you are outside . When working near any overhead power line, keep a 10-foot circle of safety between you, your equipment and the line. Overview This document is to assist contractors and others who must work near overhead power lines. Our focused experience has given us a deep understanding of the unique characteristics and safety TREES AND POWER LINES DON’T MIX SAFETY TIPS For more information Call us at: 1-800-655-4555 or contact us at: safetrees@sce. Contact with overhead electric lines is not necessary for an electric shock to occur. Fatal electrocution is the main risk, but burns and falls are also hazards. 5- High Voltage Power lines-Safety Requirements. ten (10) feet from power lines. You can be seriously hurt or killed if above where you will be moving to identify overhead electrical power lines. The power company should be your first call when there is a problem with a power line. July 2012. The law provides that no work activities take place within 10 feet of a high voltage overhead power line until the following two requirements are met: 1. Since most of the insulation is provided by air, overhead power lines are generally the lowest-cost method of transmission for large quantities of electric power. Contact a utility locator service or the Texas Railroad Commission at 811 at least two full business days before digging if the task involves any excavating. HSE Executive has also given a guideline on electrical safety at work and working safely under electrical power lines. 1 Hazard zone The hazard zone is a lateral area near an overhead electricity line which must normally be isolated from the work site by physical barriers. Download Attachment. You cannot tell The area surrounding overhead power lines on poles anywhere above or within 3m to the side and below the power line. Mobile cranes were involved in 80 of the 95 overhead power line fatal incidents. treat overhead lines as energized, even if they are down or appear to be insulated. • Never allow a piece of equipment to break the safety zone (the distance required to avoid electric arc). 2. A typical maximum allowed value is 5. If correct safety procedures are actively practiced, these incidents can be avoided. NOTE: If there is contact with a power line, this is a reportable Dangerous Occurrence – Saskatchewan people, or 23%, died when the crane contacted an energized overhead power line. ©2012 J. 4. 600, but it also is dangerous for the operator and other employees in the area. !Have a spotter monitor the placement of ladders near power lines and service wiresto make sure they remain a safe distance away when fully An operator of a truck-mounted crane was electrocuted when the boom load line contacted a 7200 volt overhead power line. I would like to know about the safety distance between 132 Kv overhead line and Insulated 33kv overhead line if passing down through 132 Kv line… and also let me know how to find out the safety distance between two line, there is any basic design criteria if any. If in doubt if the line is an energized electrical line, assume it is, and then check with your supervisor or safety representative. Purpose The purpose of this document is to specify the minimum clearances between overhead lines at all voltages up to and including 132kV and ground, general obstacles, railway and waterways property and other overhead lines. Where’s the Line. Unqualified persons: When an unqualified person is working in an elevated position ne ar overhead lines, the location must be such that the person Power Lines The following Standard shall be used as reference: NRS 033 : Electricity Distribution – Guidelines for the application design, planning and construction of medium voltage overhead power lines up to and including 33kV, using wooden pole structures and bare conductors. In farmyards and on farmland, avoid building up land around overhead power lines. Nolasco • U. You can be seriously hurt or killed if An overhead power line is an electric power transmission line suspended by towers or poles. and clearing vegetation around overhead power lines. Never attempt to move any power line. Luckily, these fatalities can be prevented by following these simple steps while on the job. If you must exit the car, jump, being careful not to touch the car and ground at the same time. DEFINITIONS. b) is familiar with the Occupational Health and Safety Act and with the provisions of the Regulations that apply to the work; and c) has knowledge of all potential or actual danger to health or safety in the work. If a vehicle or machine becomes “live” then anyone touching it is in mortal danger. The line differential relays at each end of the transmission line compare data on the line current via a fiber optic communications link, usually through OPGW (Optical Power Ground Wire) cable, used for lighting design protection of the overhead line, wich has in the interior fiber optic cables. Ten feet is considered a minimum clearance for objects, tools and people when working near overhead lines of 0 to 50,000 volts. surrounding any overhead power line, as defined in Regulation 316A and clearing vegetation around overhead power lines. Committee News & Information GUCC has developed a ROW Transmission Line Safety Video to aid in educating your crews. Warn others if the electrical power lines located right above them! Overhead electrical power lines are often uninsulated, which means that when a person makes contact with the overhead line either directly or while handling something conductive, electricity could flow to and through that person to ground, causing them to be electrocuted. Always assume that power lines don’t have protective insulation and are active and never touch a power line. The chapter defines the conditions under which work may be carried on safely and provides for the safety arrangements to be SC 4- Overhead Lines ± Clearances SC 5- Overhead Lines ± Strength & Loading SC 7- U nderground Lines SC 8- Work Rules Executive Subcommittee 25 - 35 Members Chairman Secretary 6 - 10 Members Technical Subcommittees Chairman Secretary must operate within 10 feet of lines, Idaho Power must be consulted about proper safety precautions before starting work. It springs from three previous editions of Suggested Practices for Raptor Protection on Power Lines, and has Future Inspection of Overhead Transmission Lines 2- 2 SYSTEM CONCEPT A system concept is defined for the instrumentation of electric power utility towers with sensor technology designed to increase the efficiency, reliability, safety, and security of electric power transmission. In the event of a difference between the requirements in this FIST and those contained in the Reclamation Safety and Health Standard, the more rigorous requirement shall apply. The lines can be de-energized, grounded or other protective measures can be taken. A review of the NTOF data has revealed that many occupational groups (e. • Know the safe working distance for workers and equipment. building, keeping a minimum safe distance from power lines is critical. workers of overhead power line locations. * You can be killed instantly if you are using the following equipment and it comes in contact with an overhead power line: Overhead power lines Metal scaffold contacting an overhead power line. Engineer could have specified wells be dug away from power lines, and/or better informed the employer of hazard posed by wells’ proximity to power lines through the plans, specifications, and bid documents. Safety, as the State’s energy industry technical and safety regulator, has developed these guidelines with the network operators in Western Australia. F. 2. Power line inspection involves examining the pylons, connectors, loose bolts and nuts and their high voltage insulators. I would like to know about the safety distance between 132 Kv overhead line and Insulated 33kv overhead line if passing down through 132 Kv line… and also let me know how to find out the safety distance between two line, there is any basic design criteria if any. o Overhead(clearances(may(change(during(the(course(of(aprojectdue(to(grade,(environmental,(and Overhead Power Lines. 1 Hazard zone The hazard zone is a lateral area near an overhead electricity line which must normally be isolated from the work site by physical barriers. Before you work near overhead power lines or poles, look up and follow minimum safe distances. Safety Watches or Spotters Use spotters when operating lift trucks or other power equipment to make sure overhead lines aren’t contacted. 2. If you are unsure of the voltage of a particular line, stay at least 35 feet away to ensure your safety. lines, ancillary conductors, isolators, and traction bonding. • Operate machines at a slower-than-normal rate when close to power lines. Only qualified employees of an electric utility can perform any activity that may bring an individual or equipment within 10 feet of high voltage (lines in excess of 600 volts) overhead lines. Provisions will be made to deenergize only those buses - and circuits necessary to accomplish the work. The local Electrical Utility can be contacted for overhead power line information and training. pdf Health and Safety Executive HSE information sheet Agriculture Information Sheet No 8 Working safely near overhead electricity power lines Introduction This information sheet is aimed at everyone in agriculture who may work near overhead electricity power lines (OHPLs) and outlines what you can do to reduce Follow these safety tips when around power lines and power line equipment: If an overhead line falls on your car, know that you are safe as long as you stay inside the car. Click for first sub-bullet. • Always identify locations of power lines and home service lines before beginning work. That’s why it’s vital to your safety to know proper power line safety practices. A worker was electrocuted from accidental contact with an overhead power line. Safety Tips. Not only does that violate the Occupational Safety and Health Administration (OSHA) rule, section 1926. See the chart below for the Occupational Safety and Health Administration (OSHA) guidelines – and make sure to keep yourself and anything you are touching the minimum distance from power lines. OUTAGE RESTRICTIONS: Western’s substations and transmission lines are under the jurisdiction of Western's power operation and maintenance staff and are subject to their standard operating procedures and regulations. Management includes pruning, cutting and trimming, removing vegetation and disposing of vegetation endangering power lines. • Educate workers on safety procedures and requirements. SAFETY. Important Safety Tips • Remain in the vehicle as escape is very risky. 29. 5 MB) In 1982 overhead power lines were built in Russia between Elektrostal and the power station at Ekibastusz, this was a three-phase alternating current line at 1200 kV (Power line Ekibastuz-Kokshetau). Electrical Safety Rules to Live By This brochure in no way purports to be an official interpretation of the “High Voltage Safety Act: O. 6. and slip hazards. 1-15 – Overhead Systems and other standards referenced in the document. “Note: The value that follows "to" is up to and includes that value. Overhead lines, like most electrified systems, require a greater capital expenditure when building the system than an equivalent non-electric system. power lines, and the circumstances that lead to avian electrocutions. For example, power lines and people both can be conductors of electricity, meaning electricity can flow through them. 8 MB) Tree and power line safety – Learn what’s overhead (PDF, 412 KB) Vegetation management laws and regulations (PDF, 1. • The working zone of the crane(s) shall be identified. Transmission Structures – Used to keep high-voltage conductors (power lines) separated from their surroundings and from each APPLY THE 10 FOOT RULE. These components are simple and relatively inexpensive; however, due to their critical function and the large number of components utilized in the electrical system, they deserve some consideration from the maintenance perspective. BACKGROUND EMF interference between transmission systems and buried pipelines can be of three kinds: A. • Conduct a hazard assessment to identify and address potential safety hazards before work begins. §§46-3-30 et seq. 3. 2. Electricity can jump from power lines to nearby tools and ladders. The Overhead Power Line Safety Law 455. Near Live Power Lines. ; the amount of swing or sag of overhead powerlines – the electricity network operator SA Power Networks (formerly ETSA Utilities) or Electranet can provide this information. 3. Barricade the area where materials or equipment are to be moved and supervise the area, restricting entry to personnel engaged in the work. 1-406. Whenever an unqualified employee is working in an elevated positions near overhead lines, the location will be such that the person and the longest conductive object he or she may contact cannot come closer to any unguarded, energized overhead line than the following distances: a. Fire Safety Trees contacting high voltage power lines can act be a fire ignition source. Preventing Electrocutions from Overhead Power Lines • Request the power company to shut off the energy to overhead power lines, if possible, where equipment will be used nearby. While a conventional rail line requires only the grade, ballast, ties and rails, an overhead system also requires a complex system of support structures, lines, insulators, power-control systems and power lines, all of which require Basic Rules for Electrical Safety Work at a safe distance from all power lines and facilities. • Choose a different tree or a new location to plant a tree if wires are overhead or nearby. A tree trimmer, metal ladder or other object can extend your reach Your safety is our priority. (decl Permit to Work (Form C) an electricity entity under Electrical Safety is a permit that is issued subsequent to isolation and earthing of relevant electrical apparatus to facilitate safe work near or on electrical apparatus including overhead line equipment. Overhead power lines kill! Working Around Overhead Power Line Tips . • Know(the(heightof(your(equipmentand(heightof(power(lines. National Electrical Safety Code • Part 1 – Rules for the Installation of Electric Supply Stations and Equipment • Part 2 – Safety Rules for the Installation and Maintenance of Overhead Electric Supply and Communication Lines • Part 3 – Safety Rules for the Installation and Maintenance of Underground Electric Supply and Communication The Missouri Overhead Power Line Safety Act is a statute making it illegal for an unauthorized person or entity to work or bring equipment within 10 feet of a high voltage overhead line that has not been covered or de-energized. Survey the site for overhead power lines. Injury examples: An employee fell through an open gate on the scaffold platform when leaning over to install a Overhead Power Line SC--ASO-ANLE-ANLEFMS-2015-0006, Management Concern: Excavator Struck and Snagged Aerial Communication Cable NA--LASO-LANL-PHYSTECH-2015-0004, Near Miss to Personnel Injury: Dump Truck Operator Contacts Energized Overhead Power Line 10 CFR 851, DOE Worker Safety and Health Program and Appendix A, Construction Safety Note: The work practices used by qualified persons installing insu lating devices on overhead power transmission or distribution line s are covered by OSHA in 29 CFR §1910. If you see a tree growing close to a power line, don't try to trim it yourself. To ensure you stay safe, stay clear of overhead, underground and fallen electricity wires, always look out for electricity wires when you are outside . Fig. from overhead electric power lines Guidance Notes are published under five subject headings: INTRODUCTION 1 Contact with live overhead lines kills people and causes serious injuries every year. Stay back at least 10 metres or 33 feet from any downed power line, exposed underground cables or where there is contact with an overhead power line. Stay at least 30 feet away. • Look for overhead power lines and buried power line indicators. 4. • • Stay a minimum of 10 feet away from all unprotected lines. If your equipment contacts a power line, the most important thing to do is remain calm and stay put. A person receiving an electrical shock can easily lose his/her balance and fall. only in the overhead line design to the view of safety feasibility of the potential utilization of underground power lines in the City as a replacement or supplement to the overhead radial lines now in use in wide areas of New York City. SPEAR CONSULTING, LP power line safety Our overhead power line safety guide provides you with information about the different types of power lines we use and helps you understand when tree work is performed to maintain required safety clearances. OVERHEAD POWER LINES SAFETY GUIDE The information in this guide applies to the operation of plant, machinery and other equipment near overhead power lines, not limited to any type or class. As used in NRS 455. In your risk assessment outline how you’re going to ensure that no machinery, people or equipment come within 4 m of any overhead power lines or 6 m of transmission lines. • Stay a minimum of 8 metres from the vehicle (to be safe stay the length of a bus away). Underground high-voltage transmission lines have a life expectancy of 40+ years, while overhead lines have a life expectancy of more than 80 years. power lines. This two-hour course is part of the THRIL certificate program series, developed by Gemini and well-known, highly respected industry professionals. Power lines are just what they sound like — powerful. Keeping your distance from energized lines isn’t just a safety rule. Don’t let boat antennas, sail masts or fishing poles come in contact with overhead power lines. Be careful to maintain distance from overhead power lines, since wind can cause the lines to distance of power lines (see table A). 2 Minimum height above ground of overhead power lines . Spotters were used during digging and pipe stringing operations. Virginia's Overhead High Voltage Line Safety Act, which went into effect July 1, 2003, increases the protective work zone around overhead high-voltage lines and places greater responsibility on contractors who work near overhead power lines to be particularly mindful of their surroundings. • Treat all powerlines as if they are ‘live’. We can provide comprehensive safety information and advice to anyone working near overhead power lines. 2 Planning stages 2 1. Directional arrow makes the message more clear. For other situations and for details, see the Na- tional Electric Code, the National Electrical Safety Code, or contact the electrical inspector for your area. It contains information about who to contact and what to expect if you need power lines shutoff, covered, moved, or removed, as well as needing to determine power line voltage for Title: ESFI Overhead Power Line Safety Construction Final Created Date: 1/29/2018 3:47:51 PM Title: Toolbox-Talk-Overhead-Powerline-Safety Author: mberg Created Date: 2/2/2011 10:28:47 AM NSP/004/011 Guidance on Overhead Line Clearances 1. The law requires that 10 foot minimum, known as the “danger zone. BPA. THRIL certificates are Overhead power lines generate electric and magnetic fields. Always assume that power lines don’t have protective insulation and are active and never touch a power line. Someone else touching your vehicle could result in them receiving A worker was hydro vacuuming a cattle gate near high voltage overhead powerlines. Never allow pool cleaning equipment to touch power lines near the pool area. Utility distribution systems utilize a variety of connectors to join and attach overhead conductors. Burying power lines removes the risk of these lines sparking fires during adverse weather events, but more importantly, buried lines can remain energized during Public Safety Power Shutoffs, reducing the impact of power outages to fire prone communities. 4. Maintain safe distance from overhead power lines Staying away from power lines is the best option. The most notable revision of the past requirements was the change of the 10-foot rule. 3 NO. Overhead Wire Safety The hazards associated with overhead electrical lines on Department projects impact your safety, as well as the well being of those working with you and the public. Never attempt to move any power line. 3 NO. Ask the utility owner or utility operator for the information. identifying problems in Overhead power lines. – Identify overhead lines, wire ends, leaning poles and sagging lines – Treat all utility lines as high voltage and assume all lines are energized – Keep yourself, others and equipment at least 30 feet away from downed power lines and electrical equipment until utility representatives arrive to de-energize lines o Always maintain maximum Understanding the characteristics of overhead power lines 21 Design implications of overhead power lines 22 The components of overhead power lines 23 Safety clearances and maintenance requirements 27 Creating a sense of place: design guidelines Approaches to site layout and design 33 Prioritising the public realm 34 Development density 35 Transmission Line – A line that carries electricity at voltages of 69kV or greater and is used to transmit electric power over relatively long distances, usually from a central generating station to main substations. Grain bin: Electrocution incidents associated with grain bins occur when augers and/or elevator equipment is used in the vicinity of overhead power lines. Power Lines Keep Your Distance Working around a power line can result in serious injury or death. • Treat all powerlines as if they are ‘live’. lines without first effectively guarding against accidental contact with the lines. - When installing an antenna, position it at least 1. All work activity must be kept at least four metres from overhead lines for your safety and the safety of others. • Decrease with an increase in distance from the line. If you intend operating near a power line and the design envelope of your machine can reach within 2m of the power line, you must seek permission from the asset owner; have a Trained Spotter and a Safe Systems of Work in place. Electric fields, measured in kV/m: • Are linked to the voltage of the power line and remains relatively stable with the line energized. 6 m . . Conductive objects include: Wires from overhead power lines and the use of power hand tools expose workers to electrocution risks. A. Amended March 2014. Assume all power lines are energized, not insulated and dangerous! Downed Power Lines Always assume low and downed power lines are energized, not insulated and dangerous. The magnitude of the magnetic field produced by a straight power line is: =𝜇0×𝑖 4 If you see a downed line, call 911 right away. Energy. Occupational Safety and Health Administration (OSHA). Contact with overhead power lines is the leading cause of electrical fatalities for agricultural workers. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-phase power) suspended by towers or poles. 1-406 et seq. — 1926. A high proportion of accidents occur when vehicles or machinery make contact with overhead lines. The company had been using bull floats with aluminum handles for many years to smooth the concrete after leveling. Towers for support of the lines are made of wood (as-grown or laminated), steel (either lattice • Be aware of overhead power lines and equipment, and maintain safe working distances from energized parts. lines without first effectively guarding against accidental contact with the lines. A. Costs An underground 230 kV line costs 10 to 15 times the cost of an overhead line due to time, materials, processes, the need to include transition substations and the use of specialized labor. Equipment and Overhead Lines - Use a clean, dry wood or fiberglass ladder if electric lines are any-where in the area. (Qualified power line and communications workers and qualified line-clearance tree trimmers are trained to work closer than 10 feet to a power line. A person receiving an electrical shock can easily lose his/her balance and fall. Federal and state laws require you to stay a safe distance of 10 feet or more away from power lines. July 2012. 1408 (c) Use Table A to determine the crane’s Minimum Approach Distance (MAD) to the power line. Safety Tips. Ease up when you get near the underground utility when digging with hand tools. (For minimum clearance on voltages above 50,000 volts, see WAC 296-155-428. 2 m . Indirect Strokes NSP/004/011 - Guidance on Overhead Line Clearances 1. 3. Electricity is a powerful energy source but it can be dangerous. Energy. 4. Restrict access to work near overhead power lines using barriers. Carrying a ladder on a jobsite is not of concern due to the height of most power lines being in excess of 20 feet. Safety Considerations (Continued) • Observe the area for weakened overhead power lines and utility poles on both sides of the break. Use only nonconductive (or insulated) tag lines. This publication, Suggested Practices for Avian Protection on Power Lines: The State of the Art in 2006, summarizes the history and success of over three decades of work. The intent of this guide, along with IEEE Standard 524, Guide to the Installation of Overhead Transmission Line Conductors, is to provide guidance for an optimized installation of overhead conductors. Overhead distribution involves the securing of conductors to pin, post and spool insulators. (a)The formula sheet provides the formula for the electric field at a perpendicular distance r from a line charge Q with length L as: Before starting work on your building you need to know and consider: the type of powerlines near the construction site – eg aerial, underground, high or low voltage. Before you work near overhead power lines or poles, look up and follow minimum safe distances. The area surrounding overhead power lines on poles anywhere above or within 3m to the side and below the power line. surrounding any overhead power line, as defined in Regulation 316A If you see a downed line, call 911 right away. g. Safety, Health and Environment Angler Safety Managing Risks Associated with Angling in Close Proximity to Overhead Electric Power Lines Guidance produced by Energy Networks Association Angling & Overhead Power Line Working Group. Precautions for Working near OHPLs 1. Wildfire safety in your community – Our vegetation management response (PDF, 1. The foreman and several of his overhead powerlines safety - Free download as Powerpoint Presentation (. Kaintzyk Overhead Power Lines Planning, Design, Construction With 402 Figures and 193 Tables Springer Contents 1 Overall planning 1 1. Electricity can jump from power lines to nearby tools and ladders. First, train all workers to recognize the hazards associated with power lines. E. Always complete a risk assessment to identify any overhead powerlines in the work area before beginning work. If you are planning to build, renovate or do maintenance on a structure in our service territory, no matter how small or large the job, it’s important to verify the location of overhead utility lines. Broadly speaking, the following are the guidelines for working under power lines: [9] First make sure to follow the ABC rule when working near power lines: aware of power line locations and the necessary safety precautions. 1408 (a)(2)(iii) If a crane is going to operate within 20 feet of an overhead power line OF OVERHEAD AND UNDERGROUND ELECTRIC LINES What is working in the vicinity of overhead and underground electric lines? Work in the vicinity of overhead and underground electric lines is where there is a reasonable possibility a person either directly or through a conducting medium will come within an unsafe distance to energised electric lines. • De-Energize Power Lines. Key concepts to be discussed within this chapter include: 1. , ensure your safety risk assessment includes the risks associated with overhead power lines. 5. 1-406 Scope This chapter (§ 59. ) Never lose awareness of the overhead hazard. In 2003 the (Replaces July 2004 Electromagnetic Field Setback Exemption Protocol) Introduction and Background. CRANE . Downed power lines can carry an electric current strong enough to cause serious injury or even death. voltage overhead electric utility line and the person responsible for the work done. 2. If you have a swimming pool, make sure that overhead wiring does not pass over the pool and is safely away from the pool area. In the activity below, share your knowledge about overhead power line safety. Staying clear of high-voltage, overhead power lines and buried underground lines is vital to your safety and the safety of those around you. 4. Topic: Overhead lines This information bulletin acts as a guideline for recommended best practices and should be used in conjunction with the BC Electrical Code, Part 1, Technical Safety BC Bulletin “High Voltage Installations,” C22. frequently repeated of all construction accidents, and many involve equipment contacting overhead electrical power lines, such as cranes. This could require placing a heavy timber or pipe across the top of the trench, and then tying a rope from the timber or pipe to the utility line to support its weight. (2) This document provides guidelines for the construction of overhead power and communication lines. Near Live Power Lines. It applies to work practices on all overhead lines and associated apparatus including overhead lines within a substation. By law, you and any toys or tools are required to remain at least ten feet from overhead power lines. Design engineer specified groundwater monitoring wells were to be dug directly under power lines. Call Toronto Hydro for more information about Safety of Transmission Lines • How safe can people safely live to power line? It depends on the voltage and current through the power lines. 29 CFR 1926. Whether you need a quick guide to get started or the latest overhead or underground construction standards, you'll find what you need below, and all documents are continuously updated to ensure you always have the latest information. Call ahead to get an estimate and to get details on the schedule for installation. Assume all power lines are energized, not insulated and dangerous! Downed Power Lines Always assume low and downed power lines are energized, not insulated and dangerous. Confined Space(s) Service line Low voltage Image 4: Typical powerlines in built up areas This information is provided to offer general guidance only on working safely near overhead powerlines, and does not purport to cover all situations, or any particular situation, or to outline a complete list of procedures that must be followed. Overhead Line Safety Act Facts You Need To Know When Working Near Overhead Power Lines To protect individuals working near overhead power lines from accidental contact, the Idaho Legislature passed into law in 1992 the Overhead Line Safety Act, or the “10-foot rule,” meaning 10 feet of clearance must be maintained. Important Safety Tips • Remain in the vehicle as escape is very risky. • Never approach, attempt to rescue or allow others to approach any machinery or vehicles in contact with power lines. DIGTESS was notified as per procedures, lines were spotted as per procedures, work permits were obtained as per procedures. Lanes, alleys or entrances to commercial or 7. 5. 269. Created Date: 3/14/2000 9:50:42 AM Overhead Power Line Safety. Existing conditions related to the safety of the work to be performed shall be determined before working on or near overhead power lines as per this procedure. • ‘Always keep looking up’- Be careful when raising and lowering ladders, or using hose lines and other equipment near overhead lines. This bulletin was developed by the Electrical Technology Advisory Committee near to, overhead power lines. 200 to 455. Contact with the line may cause the power supply to trip out temporarily and it may be reconnected and re-energised automatically, without warning. — 1926. For emergencies call 1850 372 999. Also see Guidance on Overhead power line Pdf. Kiessling • P. When working outside, look up and stay away! Keep yourself and equipment at least 10 feet away from overhead power lines. • Overhead power lines will be considered energized unless they are visibly grounded and the owner/ operator of the lines verifies that they are de-energized per section 2946(d). The tragic losses caused by power line accidents. Per Sign. Health and Safety Avoiding danger from overhead power lines Page 6 of 12 19 The safety zone should extend 6 m horizontally from the nearest wire on either side of the overhead line. When you’re cleaning out gutters, stay safe by keeping yourself, ladder and tools at least 10 feet from overhead Power line safety Accidents involving overhead power lines occur needlessly every year. A high proportion - about one third - of inadvertent line contacts prove fatal. Basic Rules for Electrical Safety Work at a safe distance from all power lines and facilities. Warn them in advance to be watchful of these inconspicuous hazards. In addition, contractors and owners are legally responsible for the safety of construction workers under these laws. Topic: Overhead lines This information bulletin acts as a guideline for recommended best practices and should be used in conjunction with the BC Electrical Code, Part 1, Technical Safety BC Bulletin “High Voltage Installations,” C22. • Shut off or insulate the power line(s) if possible. Diamond shaped sign can be installed using two pre-drilled holes. • Use non-conductive wood or work site has power lines to be aware of and equipment that could make contact with them. The ground around power lines – up to 35 feet away - may be energized. 0 Purpose The purpose of this document is to specify the minimum clearances between overhead lines at all voltages up to and including 132kV and ground, general obstacles, railway and waterways property and other overhead lines. Spear Consulting, LP 1. 1 As was suggested in the local law, OLTPS has in large measure drawn upon the knowledge of City’s principal electric utility, One of those initiatives is strategic undergrounding of overhead power lines. Before assembly or disassembly of a crane, the employer must determine if it could come within 20 feet of a power line (up to 350 kV). To raise awareness of overhead power line safety in order to reduce accidents and damages involving contact with overhead power lines. Upon completion of such arrangements, the owner or operator of such high-voltage line shall effect such safety precautions within a reasonable time. To work safely around powerlines, you have to be conversant with the voltage levels of the different powerlines and the safe clearance level stipulated for each. If you come across a low or fallen line, adhere to the following safety tips: If you see a downed power line, move away from it and anything touching it. We've created a self-service hub for all the information and resources you'll need before, during, and after your electric or gas project. Contact with overhead . Accidental contact of overhead electrical power lines by mobile equipment is a leading cause of occupational fatalities in the United States, accounting for 20% of on-the-job electrocutions. This distance has been the benchmark to use whenever overhead powerlines were PDF | This paper deals with a few solutions for reduction of electric and magnetic field emissions caused by the overhead power lines. Slide 9 Begin when the title appears. got too close to overhead power lines. 4 Definitions 2. from overhead power lines of 50 kV. 3. 3 Special Crane Safety Requirements for Overhead High Voltage Lines 7. Be vigilant at all times 2. Source: US Department of Labor, Bureau of Labor Statistics Fatal occupational injuries by event or exposure, 2009-2010 . power lines had either not been installed or were located underground. Nefzger • J. This course has been designed to help you meet all regulatory and government requirements including the Alberta Occupational Health and Safety Code. Hazard Assessment Week of January 25, 2016 – Overhead Power Lines Back in November, 2011, OSHA published a new standard on cranes and derricks: 29 CFR 1926, Subpart CC. Magnetic fields, measured in µT: Figures 2-2 and 2-3 show clearances under overhead lines, for the conditions most commonly encountered. This process is increasingly being performed by helicopters. Recognition of the power lines was pointed out several times during the course of the day. contact with overhead lines 2. 1 Development stages of a transmission project 1 1. • Stay at least 10 feet away from overhead power lines and assume they are energized. Use a spotter to keep a safe distance. [Discuss how de-energizing and grounding are ensured and, if both energized and de- Note: The work practices used by qualified persons installing insu lating devices on overhead power transmission or distribution line s are covered by OSHA in 29 CFR §1910. (For minimum clearance on voltages above 50,000 volts, see WAC 296-155-428. Issued by the Director of Energy Safety. Click for next slide. Contact with overhead power lines is extremely dangerous And it occurs too often Some are very lucky and escape without injuries But when luck has run out, the consequences are frightening… 5 YEAR PERIOD 2012 –2016 • Over 3000 Haulage and Transport vehicles reported coming into contact with overhead power lines in the UK Contractor’s Directory to Overhead Power Line Safety Information. 2018 in Workplace Safety. One worker touching an outrigger of the crane was electrocuted. pdf), Text File (. High Voltage Overhead Line Safety Act. Never store materials and equipment under or head power lines. Blackwater Electric’s qualified electrical linemen and electricians possess extensive experience with constructing, refurbishing and maintaining power utility overhead lines for industrial clients throughout the US Mid-Atlantic region. more) from power lines. Overhead Power Line Hazards •Most people don’t realize that overhead power lines are usually not insulated •Power line workers need special training and personal protective equipment (PPE) to work safely •Beware of power lines when you work in the vicinity with ladders, erecting antennae, moving equipment, etc. Location of overhead power line . Articlulating Boom Equipment and Overhead Powerline Safety 2 Articulating Boom Equipment and Overhead Powerline Safety Operating articulating booms near or under overhead powerlines creates electrical safety hazards to the operators, workers on the job site and members of the public in the vicinity of the equipment. . 269. ) BC Guideline for Overhead Line Construction SECTION 100 - SCOPE, REFERENCES AND DEFINITIONS 100-00 Scope (1) This document is supplementary to the BC Electrical Code. • Use only non-conductive tag lines. The following table shows the safe power line clearance distance for various line voltages. You may need to increase this width on the advice of the line owner or to allow for the possibility of a jib or other moving part encroaching into the safety zone. tsaatlif. Keep others away even if you are in the cab. 15. 1407, Power line safety (up to 350 kV)--assembly and disassembly. Areas where agricultural equipment is normally used . This minimises the risk of accidental contact or near contact with the overhead line by plant and machinery, equipment, scaffolding or other around these power lines, especially if operating machinery with cranes or booms, to be fully aware of their electrocution hazards. Be aware of overhead power lines. There are steps that employers and site supervisors can take to optimize worker safety when working around overhead the power lines. The customer does not string the service conductor, but is required to provide a or safety, overhead power lines have limit on the maximum electric field they produce. What If You Don’t Call? Penalties of up to $1,000 per day could be imposed. • This is the main reason for the requirement to use a dedicated safety observer when working near or under overhead power lines. Scope. For training, consider the languages and reading levels of the workers. 3. Because the booms of such vehicles may reach as high as overhead power lines, putting the vehicle at risk of contact, hay should not be stored under power lines. The Anatomy of Power Transmission. BY JEROME SPEAR, CSP, CIH ∞ J. Practice the 10-foot safety, rule and be safe. Colorado: Colorado Revised Statutes Article 2. C. The chapter defines the conditions under which work may be carried on safely and provides for the safety arrangements contact with a power line Report fallen power lines imme- diately. The worker received a shock when the equipment being used made contact with the overhead powerline. 1 Whenever there are overhead power lines on a job site, the following must be in place: • Large clear signs shall be posted identifying the overhead lines. . ppt), PDF File (. Injury examples: An employee fell through an open gate on the scaffold platform when leaning over to install a safety precautions required by Code Section 46-3-33, including coordination of work schedules and payment of costs required to effect such safety precautions. Click for first bullet. Electricity is a powerful energy source but it can be dangerous. OVERHEAD HIGH VOLTAGE LINE SAFETY ACT § 59. Also, any conductive object that can be contacted must be maintained at least 10 feet from overhead lines. LOOK UP! BEST SAFETY PRACTICE: NEVER GET CLOSER THAN 10 FEET TO AN OVERHEAD POWER LINE! Consider all overhead lines as energized until the electric utility indicates otherwise, or an electrician verifies that the line is not energized and has been grounded. 3 Planning methods 3 Contact with live overhead power lines is a serious risk because any voltage that causes sufficient current to pass through the heart is potentially injurious or even fatal. Please note that work may be performed by an authorized contractor of Toronto Hydro. • Can be reduced (shielded) fairly easily. • Avoid looking directly at arcing electrical lines. This document sets out procedures which, if adopted, will prevents the footpoint of the power frequency arcing current from moving along the line, and therefore a flashover between phases for such lines may cause a mechanical breakdown of the conductors [17]. Only authorized personnel shall enter switch yards of transformer areas. They are less likely to conduct electricity than a metal ladder. 0kN/C at a distance of 20 m from the wire. This may compromise safety clearance. NOW IT'S THE In the interest of safety, the electric utilities of Louisiana call your attention to the recently enacted High Voltage Overhead Power Line Safety Act. near overhead power lines. Remember that anything touching a power line may be energized. Overhead high voltage conductors or “lines” are usually bare wires supported by poles or structures. If in doubt if the line is an energized electrical line, assume it is, and then check with your supervisor or safety representative. Management includes pruning, cutting and trimming, removing vegetation and disposing of vegetation endangering power lines. It’s also the law. Never assume power installations are insulated. 4. Only Con Edison can the overhead line was installed. 2 Transmission planning 2 1. The purpose of The Missouri Overhead Power Line Safety Act is to ensure the safety of the public when working around Stay safe when working near overhead power lines: • • Avoid direct and indirect contact with power lines. 1-406 et seq. – Identify overhead lines, wire ends, leaning poles and sagging lines – Treat all utility lines as high voltage and assume all lines are energized – Keep yourself, others and equipment at least 30 feet away from downed power lines and electrical equipment until utility representatives arrive to de-energize lines o Always maintain maximum Working Around Power Lines Observe where the power lines are and NEVER lose awareness of them while working. Causes of power line contacts. If you operate machinery or equipment that could come in contact with overhead or underground power lines, check for overhead power lines, or obtain Safety and Health Standards, “yellow book”. 1408 provides requirements for safe distances. The installation of overhead lines may require reconstruction of bridges to provide safe electrical clearance. If you intend operating near a power line and the design envelope of your machine can reach within 2m of the power line, you must seek permission from the asset owner; have a Trained Spotter and a Safe Systems of Work in place. • Ask the electric company to de-energize and ground overhead power lines. Guiding the load, walking the load in a pick-and-carry operation, or contacting the wire rope when the crane touched the power line were the most common ways electricity found a path to a worker. • Call 8-1-1 at least three days before beginning a project that involves digging to have underground utility lines located and marked. During cold or frosty weather, ice may coat overhead lines. Never raise a ladder wiithin 10 feet of an overhead power line. If you are considering opening up farmland to the public for camping, etc. 3. a. These accidents can damage equipment and, more importantly, cause serious injury or death. ly/2S3E48L. interference (EMI) studies are needed for the safety of personal and assets. Those activities involved workers on foot touching or Power Lines Keep Your Distance Working around a power line can result in serious injury or death. F. Height above ground . The decedent had received formal safety training during his 5 years at another company, although it is unknown if this training included overhead power line safety. You must maintain a minimum clearance of at least 10 feet from the nearest overhead line. We can provide comprehensive safety information and advice to anyone working near overhead power lines. contact with overhead lines 2. This chapter (§ 59. 4 Definitions 2. For crane operations reference the Crane Procedures section of this pamphlet. Always follow our safety guidelines. • Have the power company inform you of the voltage and arc distances. Anyone in the cab may be in less danger but may be threatened by the vehicle or machine catching fire. txt) or view presentation slides online. Allow two working days for a response. Summon outside assistance. Typically the smallest team is made up of an observer using dedicated equipment and a pilot flying over the Power Line. • Stay a minimum of 8 metres from the vehicle (to be safe stay the length of a bus away). Ten feet is considered a minimum clearance for objects, tools and people when working near overhead lines of 0 to 50,000 volts. These laws carry both criminal and civil liabilities. $31. 3 Planning aspects regarding transmission lines 3 1. VOLTAGE POWER LINES? Public Safety To prevent injury to people climbing or working in trees adjacent to power lines. Power Lines Overhead and buried power lines are especially hazardous because they carry extremely high volt-age. Areas normally accessible to pedestrians only . • Part 2 –Safety Rules for the Installation and Maintenance of Overhead Electric Supply and Communication Lines • Part 3 –Safety Rules for the Installation and Maintenance of Underground Electric Supply and Communication Lines • Part 4 –Work Rules for the Operation of Electric Supply and Communications Lines and Equipment also applicable to many aspects of distribution line installations. line contacted a 7200-volt overhead power line. boom or a crane cable contacting an overhead power line. ‘Stay safe, stay clear’. Struck-by the overhead power line, a Working Near Overhead Power Lines Permit shall be completed. Are stationary power tools properly grounded? ☐ ☐ Can electrical equipment be locked in the “off” position, particularly when equipment is being repaired or serviced? Is a lock available? ☐ ☐ Are all workers aware of overhead power lines? ☐ ☐ Are plugs, sockets, and switches in good condition (not broken or with exposed wiring overhead lines, but many power lines are buried underground. 5. • Keep cranes and loads 20 feet from power lines. Starting with the first overhead power lines in 1882, hand ties of many Overhead High Voltage Line Safety Act § 59. And always maintain a minimum of 10 feet clearance between overhead electrical lines and yourself, any came into contact with a three-phase 13,800 volt overhead power line. NEVER: • Go near or touch any broken or fallen overhead power lines or any plant, equipment or machinery that is in contact with an overhead power line • Drive a high vehicle under an overhead line when there are alternatives • For your safety and the safety of others, always assume all lines are energized. 5 times its total length away from power overhead power lines. , brickmasons, carpenters, painters, construction laborers, and plasterers) are at risk of electrocution because their jobs involve working from scaffolds near overhead power lines [NIOSH 1991]. When working near any overhead power line, keep a 10-foot circle of safety between you, your equipment, and the line. All work activity must be kept at least four metres from overhead lines for your safety and the safety of others. 1 – Example of a typical overvoltage due to a direct strike to the MV line (adapted from [16]). 4. Issued by the Director of Energy Safety. Support exposed utility lines, if necessary, so they do not collapse under their own weight. KEY POINTS . This bulletin was developed by the Electrical Technology Advisory Committee overhead power lines If your machinery is in contact with an overhead power line or within 5 metres of a grounded line, stay inside your vehicle until the Emergency Services or SP Energy Networks arrive unless there is a real threat of fire. Explain the risks and con­ sequences of contacting overhead power lines. Never assume power installations are insulated. Determine the power line’s voltage. The power company should be your first call when there is a problem with a power line. This can result in poor electrical contact between the collector and the overhead line, resulting in electrical arcing and power surges. See OSHA’s Tree Trimming Fact Sheet and Quick Card. 7. NOTE: If there is contact with a power line, this is a reportable Dangerous Occurrence –Saskatchewan Occupational Health and Safety Regulations (1996), Part II Regulation 9. A person may not individually or through an agent or as an agent or employee perform any work or activity on any (a) Before assembling or disassembling crane/derrick, you must determine if any part of the crane/derrick, load line or load (including rigging and lifting accessories) could get, in the direction or area of assembly, closer than 20 feet of a power line that is up to 350 kV or closer than 50 feet of a power line that exceeds 350 kV during the assembly/disassembly process. power lines continues to be the most common cause of arnce-laeed rt ie. The following is the California Department of Education's (CDE's) recommended guidance to Local Educational Agencies (LEAs) that wish to seek an exemption from school site power transmission line setbacks as established in the California Code of Regulations, Title 5, Section 14010(c). You want around overhead lines. Electrostatic or capacitive interference: Occurs in the immediate vicinity of the overhead power lines when the pipe is laid on a Safety, Health and Environment Angler Safety Managing Risks Associated with Angling in Close Proximity to Overhead Electric Power Lines Guidance produced by Energy Networks Association Angling & Overhead Power Line Working Group. Overhead Power Lines ¥ #072n4HE#ENTERFOR#ONSTRUCTION2ESEARCHAND4RAINING !LLRIGHTSRESERVED #072ISTHERESEARCH TRAINING ANDSERVICEARMOF CPWR_Overhead_Power_Lines. 250, inclusive, unless the context otherwise requires: 1. Carrying a ladder on a jobsite is not of concern due to the height of most power lines being in excess of 20 feet. ) is enacted to promote the safety and protection of persons engaged in work or activity in the vicinity of overhead high voltage lines. The University’s Electrical Utilities Division (EUD) can also be contacted for overhead power line and safety information. a safe method/guideline of working around overhead power lines, identifying overhead line dangers and what to do in the event of a power line contact. Agricultural Overhead Power Line Safety Poster. gov - Bonneville Power Administration overhead power line hazard. Safety, as the State’s energy industry technical and safety regulator, has developed these guidelines with the network operators in Western Australia. Amended March 2014. 5. Product Description. More information on OSHA: Safety and Health Regulations for Cranes & Derricks in Construction, Standard Number 1926. The Department requires an electrical safety plan be established for each project where equipment or work operations may contact or disrupt power lines. OVERHEAD POWER LINE SAFETY BASICS: • Never get closer than 10 feet to a power line. These requirements demand improved mechanical and electrical performance. ) is enacted to promote the safety and protection of persons engaged in work or activity in the vicinity of overhead high voltage lines. WHICH STATE LAWS OR REGULATIONS Power storms can knock the power out with lightning strikes on systems with overhead wires, stopping trains following a power surge. Wer line safety if you’re working near overhead power lines, you must do one of two things: There is a fee for these services. If the power line is more powerful, add an additional 10 feet. Overhead Power Lines Decommision Work Zone Post Job Requirements This SOP describes safe methods of working around overhead power lines, identifying overhead line dangers and what to do in the event of a power line contact. Between 2011 and 2015, 364 construction workers died from electrocutions. overhead power line safety pdf

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