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Presented by The Iowa Association of Electric Cooperatives, this guide emphasizes the importance of safety measures when handling electrical equipment and working on energized circuits to prevent accidents. It covers inspection procedures, protective gear requirements, and protocol for de-energizing lines and equipment.
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Remind Me To What? Presented by The Iowa Association of Electric Cooperatives
Wear Protective Gloves When Chemicals Require Their Use • SECTION 2. STARTING THE JOB E. Employees shall wear the apparel and personal protective equipment necessary to guard against the recognized hazards identified in the cooperative’s hazard assessment for each job task.
Keep Basket and Boom Clean • I. INSPECTION OF THE AERIAL DEVICE • 3. Frequent Inspection and Test. The following tests and inspections shall be performed by the operator once daily, prior to first use • d. Fiberglass and other insulating components for visible damage or contamination. • f. Electrical apparatus for malfunction, signs, or excessive deterioration, dirt, and moisture accumulation.
Keep Web Slings In Good Condition • SECTION 18. ROPE, CABLE, SLINGS, AND CHAIN • 4. Slings • a. Slings and their fittings and fastenings, when in use, shall be inspected daily for evidence of overloading, excessive wear, or damage. Slings found to be defective shall be removed from service immediately.
Hot Stick Inspection Dates • SECTION 12. HOT LINE MAINTENANCE/ INSPECTION PROCEDURES WITH FOR APPROVED HOT LINE TOOLSAND HOTSTICKS • E. LIVE-LINE TOOLS • 2 Every two years a thorough inspection, the results of which are to be documented, in writing, shall be performed.
Using A Personal Ground For A Energized Jumper • SECTION 33. WORKING DIRECTLY ON ENERGIZED CIRCUITS WITH RUBBER GLOVES AND RUBBER SLEEVES • 8. Cover-Up • f. Circuits SHALL be opened and closed using approved live line tool methods. • All insulated mechanical jumpers must meet voltage classifications and shall be tested every 12 months as dictated by the various voltage classes 2 or 3 • G.COVERED (NONINSULATED) CONDUCTORS • The requirements of this section which pertain to the hazards of exposed live parts also apply when work is performed in the proximity of covered (non-insulated) wires.
Safe Removal of OCR Jumpers • There can’t be a safety rule for every job procedure. What is covered during your job briefing for removal of a single phase oil circuit breaker for maintenance?
Is Pulling The Cut-out Open on a Conventional Transformer Considered A Safe Way To Deenergize The Secondary? • SECTION 7. DEENERGIZING LINES AND EQUIPMENT • All switches, disconnectors, jumpers, taps, and other means through which known sources of electric energy may be supplied to the particular lines and equipment to be deenergized shall be opened. Such means shall be rendered inoperable, unless its design does not so permit, and tagged to indicate that employees are at work
What Will It Take To Get The Handline Back Out? • What type of jobs require a hand line today? • Where would a person benefit from using a hand line?
Testing The Line Before Grounding • SECTION 7. DEENERGIZING LINES AND EQUIPMENT • E. After the applicable requirements a. through d. have been followed and the employee in charge of the work has been given a clearance by the system operator, the lines and equipment to be worked shall be tested to ensure that they are de-energized
Observer Needed When Worker Aloft Is Near Energized Conductor • How Many Jobs Can You Think Of That Require An Observer? • Rubber Gloving • Equipment Close to Energized Line • Setting Poles Near Energized Wires • Others???????????
Hydraulic Tamp Hoses In Poor Condition • D. HYDRAULIC AND PNEUMATIC TOOLS • NOTE: If any hazardous defects are present, no operating pressure would be safe, and the hydraulic and pneumatic equipment involved may not be used. In the absence of defects, the maximum rated operating pressure is the maximum safe pressure
Sleeves Not Worn Within The Approach Distance • SECTION 4. RUBBER GLOVES AND SLEEVES • 1. When necessary to get within reaching or falling distance of energized lines or equipment, the hands shall be protected by tested rubber gloves with leather protectors, and the arms protected with rubber sleeves. • 6. If the employee is to be insulated from energized parts by the use of insulating gloves, insulating sleeves shall also be used. However, insulating sleeves need not be used if energized parts are insulated from the employee.
Trucks Not Grounded • VEHICLE AND MECHANICAL EQUIPMENT GROUNDING • c. Each employee shall be protected from hazards that might arise from equipment contact with the energized lines. The measures used shall ensure that employees will not be exposed to hazardous differences in potential. Unless the employer can demonstrate that the methods in use protect each employee from the hazards that might arise if the equipment contacts the energized line, the measures used shall include all of the following techniques: • (1) Using the best available ground to minimize the time the lines remain energized; • (2) Bonding equipment together to minimize potential differences;
Holding Covered Phase And De-framing The Pole • 8. Cover-Up • a. All potentials, including grounds, within reaching or falling distance, except the portion of conductor being worked on SHALL be covered with corona resistant cover-up material. Wood poles and crossarms are to be considered as ground potential. • c. Workers SHALL avoid difference in potential by limiting work to one conductor or potential at one time. • D. WORKING POSITION • 1. The employer shall ensure that each employee, to the extent that other safety-related conditions at the worksite permit, works in a position from which a slip or shock will not bring the employee's body into contact with exposed, uninsulated parts energized at a potential different from the employee
Safety Glasses Not Worn • A. EYE AND FACE PROTECTION • Protective eye and face equipment shall be required where there is a reasonable probability of injury that can be prevented by such equipment • Suitable eye and face protection with safety glasses and side shields shall be provided where machines or operations present the hazard of flying objects, glare, liquids, molten metals, chemical gases, acids or caustic liquids, injurious radiation, or a combination of these hazards, or as deemed necessary by a management hazard assessment.
Crew Did Not Use Cones To Protect Work Area • E. TRAFFIC CONTROL • 1. Traffic control shall conform to the 20032009 edition of the “Manual on Uniform Traffic Control Devices for Streets and Highways." (MUTCD) See, specifically, Spec. 854, Par VI. which is located in Appendix J
Making Sure Boring Machine Is Engine Is Shut off Before Installation of Clevis and Wire For Back Pull • Lock / Out Tag / Out Power Source
Chaps and The Chain Saw • C. USE OF CHAIN SAWS • 1. Chain saw operators shall: • b. Follow manufacturer's instructions as to operation, personal protective equipment, and adjustment. (protective chaps required for chain saw operation) • c. Wear protective chaps.
Removal Of Rubber Gloves On Energized Pole • A. Rubber gloves shall be worn by all personnel, for voltages phase to phase at all times, from ground to ground and lock to lock when: • Rubber gloves are not required to be worn while performing work with hot line tools on transmission line voltages 34,500 volts and above phase to phase
Exception • 3. Rubber gloves shall be worn as stated in Section 5 of this Manual. Rubber gloves shall be worn cradle to cradle while working on energized lines or equipment. Personnel who need to remove their gloves or sleeves for any reason are to back away a minimum of ten feet from energized lines or equipment and notify qualified personnel on the ground prior to doing so. Qualified personnel on the ground have the responsibility to ensure that the aerial device operator does not leave their position without replacing gloves and sleeves prior to going back into the work area[ML1] . • Qualified personnel on the ground shall observe the operator to ensure that the aerial device operator does not leave their position without replacing gloves and sleeves prior to going back into the work area.” • [ML1]This language was agreed to by the committee after much discussion.
Lack Of Hearing Protection • Wherever it is not feasible to reduce the noise levels or the duration of exposures to those specified in the following table, approved ear protective devices shall be provided and used to reduce sound levels within the levels of the table. In addition, hearing protectors shall be made available to all employees exposed to an 8-hour time weighted average of 85 decibels or greater at no cost to the employees. • Table start at 90dB or 85 dB for employees who have had threshold shift or have not been tested for baseline.
Test Dates Out On Rubber Goods • All rubber cover-up equipment shall be dielectrically tested every 12 months, Class 2 rating up to 17,000 volts and Class 3 cover up 17,000 through 26,500.
Flashers and Strobe Lights • Flashing warning lights "shall" be used while workers are working aloft
Conductor Not Properly Covered While Rubber Gloving • On single/multi-phase exposure work, enough cover-up material shall be used so that the employee or the longest conductive object he or she may handle can not simultaneously breach the electrical components or difference of potential.
Traffic Vest On Gravel Roads • 6. High-Visibility Safety Apparel: A high visibility vestsafety garmentshall be worn anytime work is being performed on the ground on foot[ML1] . • a. Worker Safety Apparel—All workers exposed to the risks of moving roadway traffic or construction • equipment should wear high-visibility safety apparel meeting the requirements of ISEA “American • National Standard for High-Visibility Safety Apparel”, or equivalent revisions, and labeled as ANSI 107-1999 2004standard performance for Class 1, 2, or 3 risk exposure. A competent person designated by the employer to be responsible for the worker safety plan within the activity area of the job site should make the selection of the appropriate class of garment. • [ML1]The OSHA regulation cited only requires high visibility apparel be worn when a worker is exposed to vehicular traffic. The committee voted to extend this requirement to any time a worker is working on foot on the ground.
DOT Daily Inspections Not Available • At the completion of each day's work, the driver shall prepare a written report (a copy of a report form for this purpose is located in Appendix I) on each vehicle the driver operated which covers at least the following parts and accessories: • Service brakes (including trailer brake connections) • Parking (hand) brake • Steering mechanism • Lighting devices and reflectors • Tires • Horn • Windshield wipers • Rear vision mirrors • Coupling devices • Wheels and rims • Emergency equipment
The Temporary Deadend Used To Fix A Problem Spot • If It’s Not Grounded It’s Not Dead! • Ground The De-energized Side, Protect The Public As Well As Other Line Workers
Poor Storage Of Life Saving Equipment (Rubber Blankets) • Insulating equipment shall be stored and in such a location and manner as to protect it from light, temperature extremes, excessive humidity, ozone, and other injurious substances and conditions
Temporary Truck Ground Installed Shallow • All temporary driven grounds shall be placed in accordance to the 25 foot rule. 25 Foot Rule: Any temporary driven ground rod shall be placed a minimum distance of 25 feet from the structure or equipment to which it is attached. Lineman’s • Handbook • d. The temporary ground rod shall be driven deep enough to be in perpetually moist earth. In most localities, a depth of 8 to 10 feet is usually necessary to meet this requirement.
Failure To Apply Tag To Disconnection Point • If only one crew will be working on the lines or equipments and if the means of disconnection is accessible and visible to and under the sole control of the employee in charge of the clearance, paragraphs 2.a., 2.c., 2.d., 2.h., and 2.l. of this section do not apply. • All switches, disconnectors, jumpers, taps, and other means through which known sources of electric energy may be supplied to the particular lines and equipment to be deenergized shall be opened. Such means shall be rendered inoperable, unless its design does not so permit, and tagged to indicate that employees are at work.
Cell Phone Carried Aloft While Rubber Gloving • A single employee may be assigned to perform the following work provided that it is the supervisor'sperson in charge's judgment that such work can be performed safely: • Routine switching of circuits; • Work performed with live-line tools if the employee is positioned so that he or she is not exposed to contact with energized parts; c. Emergency repairs to the minimum extent necessary to safeguard the general public; d. Operations involving voltages of 300 volts or less; e. Routine meter change-out. f. Work involving the use of insulated aerial lifts. The employee may carry a cell phone for placing emergency calls only while performing this work provided that it is turned off.
Cell Phone Prohibited Aloft • SECTION 33. WORKING DIRECTLY ON ENERGIZED CIRCUITS WITH RUBBER GLOVES AND RUBBER SLEEVES • 3. Prohibitions • b. You are not to have in your possession cell phones, pagers, walkie talkies, radios, or any other electronic communications or entertainment device while performing hot line work under any circumstances. If you have one of these devices with you, turn the device off and leave it in the cab ofthe vehicle.
Work On One Potential At A Time • Workers SHALL avoid difference in potential by limiting work to one conductor or potential at one time. • Put control device on single operation or fuse bypass.[ML1] • [ML1] This language is taken from the Quad States Instructors Vol. 3 Instructional Guideline for Rubber Gloving a nationally recognized program distributed by the Quad States and the Texas Engineering Extension Service.