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Electrical Safety Job Hazard Analysis Documentation ===================================================

This document outlines the requirements for performing a job hazard analysis (JHA) for electrical work, focusing on identifying and mitigating electrical hazards to ensure employee safety. It covers safety-related work practices, training, and the use of personal protective equipment (PPE) when working on or near energized electrical equipment.

Scope

This JHA applies to all employees, both qualified and unqualified, who work on, near, or with electrical installations. This includes:

Premises wiring: Installations of electric conductors and equipment within or on buildings or other structures, and on other premises such as yards, carnival, parking, and other lots, and industrial substations.
Wiring for connection to supply: Installations of conductors that connect to the supply of electricity.
Other wiring: Installations of other outside conductors on the premises.
Optical fiber cable: Installations of optical fiber cable where such installations are made along with electric conductors.

It does not apply to qualified persons working on or directly associated with generation, transmission, and distribution installations used for the generation, control, transformation, transmission, and distribution of electric energy, including communication and metering, located in buildings used for such purposes or located outdoors. [1]

Definitions

Qualified Person: An individual with training in avoiding the electrical hazards of working on or near exposed energized parts.
Unqualified Person: An individual with little or no training in avoiding electrical hazards.

General Requirements

Safety-related work practices must be employed to prevent electric shock or other injuries resulting from direct or indirect electrical contacts when working near or on equipment or circuits that are or may be energized. The specific safety-related work practices must be consistent with the nature and extent of the associated electrical hazards. [5]

Deenergizing Equipment

Live parts to which an employee may be exposed must be deenergized before the employee works on or near them, unless the employer can demonstrate that deenergizing introduces additional or increased hazards or is infeasible due to equipment design or operational limitations. Live parts that operate at less than 50 volts to ground need not be deenergized if there will be no increased exposure to electrical burns or to explosion due to electric arcs. [5]

Increased hazards may include:

Interruption of life support equipment
Deactivation of emergency alarm systems
Shutdown of hazardous location ventilation equipment
Removal of illumination for an area

Infeasibility examples include:

Testing of electric circuits that can only be performed with the circuit energized
Work on circuits that form an integral part of a continuous industrial process in a chemical plant that would otherwise need to be completely shut down in order to permit work on one circuit or piece of equipment

Energized Equipment Work Practices

If exposed live parts are not deenergized, other safety-related work practices must be used to protect employees who may be exposed to the electrical hazards involved. These practices must protect employees against contact with energized circuit parts directly or indirectly. The work practices used must be suitable for the conditions under which the work is to be performed and for the voltage level of the exposed electric conductors or circuit parts. [3]

Lockout/Tagout Procedures

When working on deenergized parts, lockout and tagging procedures must be followed to prevent accidental energization. Conductors and parts of electric equipment that have been deenergized but not locked out or tagged must be treated as energized parts. [3]

Minimum Approach Distances

The employer shall establish minimum approach distances no less than the distances computed by relevant tables for AC and DC systems. For voltages over 72\.5 kilovolts, the employer shall determine the maximum anticipated per-unit transient overvoltage, phase-to-ground, through an engineering analysis or assume a maximum anticipated per-unit transient overvoltage, phase-to-ground, in accordance with provided tables. [11] [11]

No employee shall approach or take any conductive object closer to exposed energized parts than the established minimum approach distance, unless: [8]

The employee is insulated from the energized part (e.g., using rubber insulating gloves and sleeves).
The energized part is insulated from the employee and any other conductive object.
The employee is insulated from any other exposed conductive object.

Personal Protective Equipment (PPE)

Employees working on or near exposed energized parts must use appropriate PPE, including:

Rubber insulating gloves and sleeves: Must be used when an employee is working on energized parts and shall be put on and removed in a position where the employee cannot reach into the minimum approach distance.
Eye protection: Required when installing or removing expulsion-type fuses with one or both terminals energized at more than 300 volts.
Flame-resistant clothing: The outer layer of clothing worn by an employee must be flame-resistant when the estimated incident heat energy exceeds 2\.0 cal/cm2\.

Electrical Safety Training

Employees who face a risk of electric shock that is not reduced to a safe level by the electrical installation requirements must be trained. [9]

Training must cover safety-related work practices, and qualified persons must also be trained in: [4]

The skills and techniques necessary to distinguish exposed live parts from other parts of electric equipment.
The skills and techniques necessary to determine the nominal voltage of exposed live parts.
The clearance distances and corresponding voltages to which the qualified person will be exposed.

The training must be of the classroom or on-the-job type, and the degree of training provided must be determined by the risk to the employee. [4]

Table S-4 lists typical occupational categories of employees facing a higher than normal risk of electrical accident and who are required to be trained:

Typical Occupational Categories of Employees Facing a Higher than Normal Risk of Electrical Accident

Blue collar supervisors
Electrical and electronic engineers
Electrical and electronic technicians
Electricians
Industrial machine operators
Material handling equipment operators
Mechanics and repairers
Painters
Riggers and roustabouts
Stationary engineers
Welders

Fuse Handling

When an employee must install or remove fuses with one or both terminals energized at more than 300 volts, or with exposed parts energized at more than 50 volts, the employee must use tools or gloves rated for the voltage. When installing or removing expulsion-type fuses with one or both terminals energized at more than 300 volts, the employee must wear eye protection, use a tool rated for the voltage, and be clear of the exhaust path of the fuse barrel. [2]

Working Near Overhead Lines

If work is to be performed near overhead lines, the lines must be deenergized and grounded, or other protective measures must be provided before work is started. If the lines are to be deenergized, arrangements must be made with the person or organization that operates or controls the electric circuits involved to deenergize and ground them. If protective measures, such as guarding, isolating, or insulating, are used, these precautions must prevent employees from contacting such lines directly or indirectly. [10]

Unqualified persons must maintain specific distances from unguarded, energized overhead lines: [10]

For voltages to ground 50kV or below: 10 ft.
For voltages to ground over 50kV: 10 ft. plus 0\.4 inch for every 1 kV over 50 kV.

Qualified persons must not approach or take any conductive object closer to exposed energized parts than shown in the relevant tables unless specific conditions are met, such as being insulated from the energized part or the energized part being insulated from all other conductive objects. [10]

Electrical Hazard Assessment

Employers must assess the workplace to identify employees exposed to hazards from flames or from electric arcs and make a reasonable estimate of the incident heat energy to which the employee would be exposed. [8] [8]

Table 1 provides task-based examples of exposure assessments. [6]

Table 1-Example Assessments for Various Tasks

Task	Is employee exposed to flame or electric-arc hazard?
Normal operation of enclosed equipment, such as closing or opening a switch. The employer properly installs and maintains enclosed equipment, and there is no evidence of impending failure.	No.
Normal operation of enclosed equipment, such as closing or opening a switch. There is evidence of arcing or overheating	Yes.
Normal operation of enclosed equipment, such as closing or opening a switch. Parts of the equipment are loose or sticking, or the equipment otherwise exhibits signs of lack of maintenance.	Yes.
Servicing electric equipment, such as racking in a circuit breaker or replacing a switch	Yes.
Inspection of electric equipment with exposed energized parts. The employee is not holding conductive objects and remains outside the minimum approach distance established by the employer.	No.
Inspection of electric equipment with exposed energized parts. The employee is holding a conductive object, such as a flashlight, that could fall or otherwise contact energized parts (irrespective of whether the employee maintains the minimum approach distance).	Yes.
Inspection of electric equipment with exposed energized parts. The employee is closer than the minimum approach distance established by the employer (for example, when wearing rubber insulating gloves or rubber insulating gloves and sleeves).	Yes.
Using open flames, for example, in wiping cable splice sleeves	Yes.

Non-Current-Carrying Metal Parts

Non-current-carrying metal parts of equipment or devices, such as transformer cases and circuit-breaker housings, shall be treated as energized at the highest voltage to which these parts are exposed, unless the employer inspects the installation and determines that these parts are grounded before employees begin performing the work. [2]

Opening and Closing Circuits Under Load

Devices used by employees to open circuits under load conditions must be designed to interrupt the current involved, and devices used to close circuits under load conditions must be designed to safely carry the current involved. [2] [2]

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11 source record(s)

Sources used for this answer

[1] Safety Standards for General Safety and Health Standards (Chapter 296-24 WAC)

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# WAC 296-24-957 Electrical. (cont.) ## WAC 296-24-965 Safety-related work practices. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical Note 1: Work on or directly associated with installations of utilization equipment used for purposes other than generating, transmitting, or distributing electric energy (such as installations which are in office buildings, warehouses, garages, machine shops, or recreational buildings, or other utilization installations which are not an integral part of a generating installation, substation, or control center) is covered under subsection (1)(a) of this section. Note 2: Work on or directly associated with generation, transmission, or distribution installations includes: 1. Work performed directly on such installations, such as repairing overhead or underground distribution lines or repairing a feed- water pump for the boiler in a generating plant. 2. Work directly associated with such installations, such as line- clearance tree trimming and replacing utility poles. 3. Work on electric utilization circuits in a generating plant provided that: a. Such circuits are commingled with installations of power generation equipment or circuits; and b. The generation equipment or circuits present greater electrical hazards than those posed by the utilization equipment or circuits (such as exposure to higher voltages or lack of overcurrent protection). (b) Communications installations. Installations of communication equipment to the extent that the work is covered under chapter 296-32 WAC. (c) Installations in vehicles. Installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles other than mobile homes and recreational vehicles. (d) Railway installations. Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock or installations of railways used exclusively for signaling and comm…

[2] Occupational Safety and Health Standards (OSHA 29 CFR 1910) - 1910.333 - Selection and use of work practices

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U.S. DEPARTMENT OF LABOR # Occupational Safety and Health Administration - Part Number: 1910 - Part Number - Title: Occupational Safety and Health Standards - Subpart: 1910 Subpart S - Subpart Title: Electrical Standard - Number: - 1910.333 - Title: Selection and use of work practices. - GPO Source: e-CFR 1910.333(a) General. Safety-related work practices shall be employed to prevent electric shock or other injuries resulting from either direct or indirect electrical contacts, when work is performed near or on equipment or circuits which are or may be energized. The specific safety-related work practices shall be consistent with the nature and extent of the associated electrical hazards. ## 1910.333(a)(1) Deenergized parts. Live parts to which an employee may be exposed shall be deenergized before the employee works on or near them, unless the employer can demonstrate that deenergizing introduces additional or increased hazards or is infeasible due to equipment design or operational limitations. Live parts that operate at less than 50 volts to ground need not be deenergized if there will be no increased exposure to electrical burns or to explosion due to electric arcs. Note 1: Examples of increased or additional hazards include interruption of life support equipment, deactivation of emergency alarm systems, shutdown of hazardous location ventilation equipment, or removal of illumination for an area. Note 2: Examples of work that may be performed on or near energized circuit parts because of infeasibility due to equipment design or operational limitations include testing of electric circuits that can only be performed with the circuit energized and work on circuits that form an Submit Feedback

[3] Safety Standards for General Safety and Health Standards (Chapter 296-24 WAC)

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# WAC 296-24-957 Electrical. (cont.) ## WAC 296-24-960 Working on or near exposed energized parts. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical liquid solutions) in proximity to energized parts unless procedures are followed which will prevent electrical contact. (15) Interlocks. Only a qualified person following the requirements of this section may defeat an electrical safety interlock, and then only temporarily while he or she is working on the equipment. You must return the interlock system to its operable condition when this work is completed. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), $ 296-24-960, filed 12/01/2015, effective 01/05/2016 Statutory Authority: Chapter 49.17 RCW. 94-15-096 (Order 94-07), 296-24-960, filed 7/20/94, effective 9/20/94; 91-24- 017 (Order 91-07), 296-24-960, filed 11/22/91, effective 12/24/91. Statutory Authority: RCW 49.17.040 and 49.17.050. 82-13-045 (Order 82-22), 296-24-960, filed 6/11/82; 82-02-003 (Order 81-32), 296-24-960, filed 12/24/81.] ## WAC 296-24-965 Safety-related work practices. (1) Scope. Covered work by both qualified and unqualified persons. The provisions of WAC 296-24-960 through 296-24-985 cover electrical safety-related work practices for both qualified persons (those who have training in avoiding the electrical hazards of working on or near exposed energized parts) and unqualified persons (those with little or no such training) working on, near, or with the following installations: (a) Premises wiring. Installations of electric conductors and equipment within or on buildings or other structures, and on other premises such as yards, carnival, parking, and other lots, and industrial substations; (b) Wiring for connection to supply. Installations of conductors that connect to the supply of electricity; (c) Other wiring. Installations of other outside conductors on the premises; and (d) Optical fiber cable. Installations of o…

[4] Safety and Health Regulations for Construction (OSHA 29 CFR 1926) - 1926 Subpart V App E - Appendix E to Subpart V of Part 1926 - Protection From Flames and Electric Arcs

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# Table 1 provides task-based examples of exposure assessments. Table 1-Example Assessments for Various Tasks <table><tr><th colspan="2">Task</th><th>Is employee exposed to flame or electric-arc hazard?</th></tr><tr><td rowspan="3">Normal operation of enclosed equipment, such as closing or opening a switch.</td><td>The employer properly installs and maintains enclosed equipment, and there is no evidence of impending failure.</td><td>No.</td></tr><tr><td>There is evidence of arcing or overheating</td><td>Yes.</td></tr><tr><td>Parts of the equipment are loose or sticking, or the equipment otherwise exhibits signs of lack of maintenance.</td><td>Yes.</td></tr><tr><td colspan="2">Servicing electric equipment, such as racking in a circuit breaker or replacing a switch</td><td>Yes.</td></tr><tr><td rowspan="3">Inspection of electric equipment with exposed energized parts.</td><td>The employee is not holding conductive objects and remains outside the minimum approach distance established by the employer.</td><td>No.</td></tr><tr><td>The employee is holding a conductive object, such as a flashlight, that could fall or otherwise contact energized parts (irrespective of whether the employee maintains the minimum approach distance).</td><td>Yes.</td></tr><tr><td>The employee is closer than the minimum approach distance established by the employer (for example, when wearing rubber insulating gloves or rubber insulating gloves and sleeves).</td><td>Yes.</td></tr><tr><td colspan="2">Using open flames, for example, in wiping cable splice sleeves</td><td>Yes.</td></tr></table> ## III. Protection Against Burn Injury A. Estimating Available Heat Energy Submit Feedback

[5] Safety Standards for General Safety and Health Standards (Chapter 296-24 WAC)

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# WAC 296-24-957 Electrical. (cont.) ## WAC 296-24-970 Training. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical (a) Practices addressed in this standard. You must train and familiarize employees with the safety-related work practices required by WAC 296-24-960 through 296-24- 985 that pertain to their respective job assignments. (b) Additional requirements for unqualified persons. You must also train and familiarize employees who are covered by subsection (1) of this section but who are not qualified persons with any electrically related safety practices not specifically addressed by WAC 296-24-960 through 296-24-985 but which are necessary for their safety. (c) Additional requirements for qualified persons. Qualified persons (i.e., those permitted to work on or near exposed energized parts) shall, at a minimum, be trained in and familiar with the following: (i) The skills and techniques necessary to distinguish exposed live parts from other parts of electric equipment; (ii) The skills and techniques necessary to determine the nominal voltage of exposed live parts; and (iii) The clearance distances specified in WAC 296-24-960 and the corresponding voltages to which the qualified person will be exposed. - Note 1: For the purposes of WAC 296-24-960 through 296-24-985 a person must have the training required by (c) of this subsection in order to be considered a qualified person. - Note 2: Qualified persons whose work on energized equipment involves either direct contact or contact by means of tools or materials must also have the training needed to meet WAC 296-24-960. (3) Type of training. The training required by this section must be of the classroom or on-the- job type. The degree of training provided must be determined by the risk to the employee. Table S-4.--Typical Occupational Categories of Employees Facing a Higher than Normal Risk of Electrical Accident <table><tr><th>Occupation</th></tr><tr><td>Blue coll…

[6] General Industry Safety and Health Standards (MIOSHA)

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# 1910.269 ELECTRIC POWER GENERATION, TRANSMISSION, AND DISTRIBUTION (cont.) ## 1910.269(I)(9) Fuse handling. When an employee must install or remove fuses with one or both terminals energized at more than 300 volts, or with exposed parts energized at more than 50 volts, the employer shall ensure that the employee uses tools or gloves rated for the voltage. When an employee installs or removes expulsion-type fuses with one or both terminals energized at more than 300 volts, the employer shall ensure that the employee wears eye protection meeting the requirements of Subpart I of this part, uses a tool rated for the voltage, and is clear of the exhaust path of the fuse barrel. 1910.269(I)(10) Covered (non-insulated) conductors. The requirements of this section that pertain to the hazards of exposed live parts also apply when an employee performs work in proximity to covered (non-insulated) wires. 1910.269(I)(11) Non-current-carrying metal parts. Non-current-carrying metal parts of equipment or devices, such as transformer cases and circuit-breaker housings, shall be treated as energized at the highest voltage to which these parts are exposed, unless the employer inspects the installation and determines that these parts are grounded before employees begin performing the work. 1910.269(I)(12) Opening and closing circuits under load. 1910.269(I)(12)(i) The employer shall ensure that devices used by employees to open circuits under load conditions are designed to interrupt the current involved. 1910.269(I)(12)(ii) The employer shall ensure that devices used by employees to close circuits under load conditions are designed to safely carry the current involved. <table><tr><th colspan="2">TABLE R-3 AC LIVE-LINE WORK MINIMUM APPROACH DISTANCE</th></tr><tr><td colspan="2">[The minimum approach distance (MAD; in meters) shall conform to the following equations.]</td></tr><tr><td colspan="2">For phase-to-phase system voltages of 50 V to 300 V: 1 MAD = avoid contact</td>…

[7] General Industry Safety and Health Standards (MIOSHA)

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# 1910.269 ELECTRIC POWER GENERATION, TRANSMISSION, AND DISTRIBUTION (cont.) ## 1910.269(j) Live-line tools. (cont.) Note to paragraph (j)(2): Guidelines for the examination, cleaning, repairing, and inservice testing of live-line tools are specified in the Institute of Electrical and Electronics Engineers' IEEE Guide for Maintenance Methods on Energized Power Lines, IEEE Std 516-2009. - 1910.269(k) Materials handling and storage. - 1910.269(k)(1) General. Materials handling and storage shall comply with applicable material-handling and material-storage requirements in this part, including those in Subpart N of this part. - 1910.269(k)(2) Materials storage near energized lines or equipment. 1910.269(k)(2)(i) In areas to which access is not restricted to qualified persons only, materials or equipment may not be stored closer to energized lines or exposed energized parts of equipment than the following distances, plus a distance that provides for the maximum sag and side swing of all conductors and for the height and movement of material-handling equipment: 1910.269(k)(2)(i)(A) For lines and equipment energized at 50 kilovolts or less, the distance is 3.05 meters (10 feet). 1910.269(k)(2)(i)(B) For lines and equipment energized at more than 50 kilovolts, the distance is 3.05 meters (10 feet) plus 0.10 meter (4 inches) for every 10 kilovolts over 50 kilovolts. - 1910.269(k)(2)(ii) In areas restricted to qualified employees, materials may not be stored within the working space about energized lines or equipment. Note to paragraph (k)(2)(ii): Paragraphs (u)(1) and (v)(3) of this section specify the size of the working space. 1910.269(I) Working on or near exposed energized parts. This paragraph applies to work on exposed live parts, or near enough to them to expose the employee to any hazard they present. - 1910.269(I)(1) General. 1910.269(1)(1)(i) Only qualified employees may work on or with exposed energized lines or parts of equipment. 1910.269(I)(1)(ii)…

[8] Safety Standards for General Safety and Health Standards (Chapter 296-24 WAC)

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# WAC 296-24-957 Electrical. (cont.) ## WAC 296-24-960 Working on or near exposed energized parts. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical (5) Overhead lines. If work is to be performed near overhead lines, you must deenergize and ground the lines, or provide other protective measures before work is started. If the lines are to be deenergized, you must make arrangements with the person or organization that operates or controls the electric circuits involved to deenergize and ground them. If protective measures, such as guarding, isolating, or insulating, these precautions must prevent employees from contacting such lines directly with any part of their body or indirectly through conductive materials, tools, or equipment. (6) Unqualified persons. When an unqualified person is working in an elevated position, or on the ground, near overhead lines, the location must 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) For voltages to ground 50kV or below--10 ft.; (b) For voltages to ground over 50kV--10 ft. plus 0.4 inch for every 1 kV over 50 kV. (7) Qualified persons. When a qualified person is working in the vicinity of overhead lines, whether in an elevated position or on the ground, the person must not approach or take any conductive object without an approved insulating handle closer to exposed energized parts than shown in subsections (3) and (4) of this section unless: (a) The person is insulated from the energized part (gloves, with sleeves if necessary, rated for the voltage involved are considered to be insulation of the person from the energized part on which work is performed); or (b) The energized part is insulated both from all other conductive objects at a different potential and from the person; or (c) The person is insulated from all conductive objects at a potential differen…

[9] Safety Standards for General Safety and Health Standards (Chapter 296-24 WAC)

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# WAC 296-24-957 Electrical. (cont.) ## WAC 296-24-970 Training. (cont.) Chapter 296-24 WAC General Safety and Health Standards Part L Electrical # WAC 296-24-975 Selection and use of work practices. (1) General. You must employ safety-related work practices to prevent electric shock or other injuries resulting from either direct or indirect electrical contacts, when work is performed near or on equipment or circuits which are or may be energized. The specific safety-related work practices must be consistent with the nature and extent of the associated electrical hazards. (a) Deenergized parts. You must deenergize live parts to which an employee may be exposed shall be deenergized before the employee works on or near them, unless the employer can demonstrate that deenergizing introduces additional or increased hazards or is infeasible due to equipment design or operational limitations. Live parts that operate at less than 50 volts to ground need not be deenergized if there will be no increased exposure to electrical burns or to explosion due to electric arcs. - Note 1: Examples of increased or additional hazards include interruption of life support equipment, deactivation of emergency alarm systems, shutdown of hazardous location ventilation equipment, or removal of illumination for an area. - Note 2: Examples of work that may be performed on or near energized circuit parts because of infeasibility due to equipment design or operational limitations include testing of electric circuits that can only be performed with the circuit energized and work on circuits that form an integral part of a continuous industrial process in a chemical plant that would otherwise need to be completely shut down in order to permit work on one circuit or piece of equipment - Note 3: Work on or near deenergized parts is covered by subsection (2) of this section. (b) Energized parts. If the exposed live parts are not deenergized (i.e., for reasons of increased or additiona…

[10] Occupational Safety and Health Standards (OSHA 29 CFR 1910) - 1910.269 App E - Protection From Flames and Electric Arcs

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# Table 1 provides task-based examples of exposure assessments. Table 1- - Example Assessments for Various Tasks <table><tr><th colspan="2">Task</th><th>Is employee exposed to flame or electric-arc hazard?</th></tr><tr><td rowspan="3">Normal operation of enclosed equipment, such as closing or opening a switch.</td><td>The employer properly installs and maintains enclosed equipment, and there is no evidence of impending failure.</td><td>No.</td></tr><tr><td>There is evidence of arcing or overheating</td><td>Yes.</td></tr><tr><td>Parts of the equipment are loose or sticking, or the equipment otherwise exhibits signs of lack of maintenance.</td><td>Yes.</td></tr><tr><td colspan="2">Servicing electric equipment, such as racking in a circuit breaker or replacing a switch</td><td>Yes.</td></tr><tr><td rowspan="3">Inspection of electric equipment with exposed energized parts.</td><td>The employee is not holding conductive objects and remains outside the minimum approach distance established by the employer.</td><td>No.</td></tr><tr><td>The employee is holding a conductive object, such as a flashlight, that could fall or otherwise contact energized parts (irrespective of whether the employee maintains the minimum approach distance).</td><td>Yes.</td></tr><tr><td>The employee is closer than the minimum approach distance established by the employer (for example, when wearing rubber insulating gloves or rubber insulating gloves and sleeves).</td><td>Yes.</td></tr><tr><td colspan="2">Using open flames, for example, in wiping cable splice sleeves</td><td>Yes.</td></tr></table> ## III. Protection Against Burn Injury A. Estimating Available Heat Energy Submit Feedback

[11] General Industry Safety and Health Standards (MIOSHA)

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# 1910.269 ELECTRIC POWER GENERATION, TRANSMISSION, AND DISTRIBUTION (cont.) ## 1910.269(j) Live-line tools. (cont.) Note to paragraph (I)(3)(ii): See Appendix B to this section for information on how to calculate the maximum anticipated per-unit transient overvoltage, phase-to-ground, when the employer uses portable protective gaps to reduce maximum transient over-voltages. - 1910.269(I)(3)(iii) The employer shall ensure that no employee approaches or takes any conductive object closer to exposed energized parts than the employer's established minimum approach distance, unless: - 1910.269(I)(3)(iii)(A) The employee is insulated from the energized part (rubber insulating gloves or rubber insulating gloves and sleeves worn in accordance with paragraph (I)(4) of this section constitutes insulation of the employee from the energized part upon which the employee is working provided that the employee has control of the part in a manner sufficient to prevent exposure to uninsulated portions of the employee's body), or - 1910.269(I)(3)(iii)(B) The energized part is insulated from the employee and from any other conductive object at a different potential, or - 1910.269(I)(3)(iii)(C) The employee is insulated from any other exposed conductive object in accordance with the requirements for live-line barehand work in paragraph (q)(3) of this section. - 1910.269(I)(4) Type of insulation - 1910.269(1)(4)(i) When an employee uses rubber insulating gloves as insulation from energized parts (under paragraph (1)(3)(iii)(A) of this section), the employer shall ensure that the employee also uses rubber insulating sleeves. However, an employee need not use rubber insulating sleeves if: - 1910.269(I)(4)(i)(A) Exposed energized parts on which the employee is not working are insulated from the employee; and - 1910.269(I)(4)(i)(B) When installing insulation for purposes of paragraph (1)(4)(i)(A) of this section, the employee installs the insulation from a position that does not e…

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Original answer: Aug 20, 2025

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Deenergizing Equipment

Energized Equipment Work Practices

Lockout/Tagout Procedures

Minimum Approach Distances

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