ELECTRICAL SAFETY-RELATED WORK PRACTICES

Transcription

1 ELECTRICAL SAFETY-RELATED WORK PRACTICES This checklist is provided to assist organizations in reviewing compliance with OSHA Standard 29 CFR through Refer to the complete Standard for details. References Item Yes No Comments SCOPE Covers qualified and unqualified persons (1) Premise wiring (2) Wiring for connection to supply: (3) Other wiring (4) Optical fiber cable along with electrical conductors. Other covered work by unqualified persons. (c) Excludes work by qualified persons on or directly associate with. (1) Generation, transmission, and distribution installations. Note: 1. Work on or with utilization on or with utilization equipment is covered. (2) Communications installations (per ) (3) Installations in vehicles (4) Railway installations TRAINING For employees who face a risk of electrical shock (50) volts or more) that is not reduced to a safe level by the electrical installation ( ). Including: Blue Collar supervisors engineers equipment assemblers technicians Electricians Industrial machine operators Material handling equipment Mechanics and repairers Painters Riggers and roustabouts Stationary engineers Welders Fig. 8.5-A 8 20

2 (1) (c) Employees trained are familiar with this standard. (2) Unqualified persons trained in and familiar with any electrically related safety practice not covered by this standard by necessary for their safety (3) Qualified persons trained in and familiar with (minimum) (1) Skills and techniques necessary to distinguish exposed live parts from other parts of electric equipment. (1) Skills and techniques necessary to distinguish exposed live parts from other parts of electric equipment. Voltage determination Clearance distance ( )(c) Training determination by the risk to the employee SELECTION AND USE OF WORK PRACTICES Safety-related work practices employed to prevent electrical shock and other injuries including: (1) De-energized parts which may be energized. (2) Energized parts (1) Procedure provided for work on or near expose de-energized (2) Energized parts (I) Written procedure provided for work on or near exposed de-energized De-energizing equipment Note: Exceptions include emergency Equipment continuous process etc. (c) Working on or near exposed energized parts (1) Employees near enough to be exposed. (2) Only qualified persons work on energized (3) Overhead lines de-energized and grounded prior to working near them or other protective measures used. (1) Unqualified persons working near overhead likes shall not come closer or conductive objects they contact come closer than: Feet Voltage 10 feet 50kv 10 Feet plus 4 inches for every 10kv over 50kv Fig. 8.5A 8 21

3 Qualified person Refer to Table S-5 in Standard Vehicular and mechanical equipment maintain 10 feet clearance minimum plus 4 inches for every 10 feet kv. In transit, 4 feet plus inches for every 10 kv over 50 kv Insulating barriers within the designed dimensions Aerial life (insulated) operated by a qualified person must comply with Table S-5. Employees standing on ground do not contact the vehicle unless: * Rated protective equipment used * Equipment may not stand at the grounding location for overhead lines. Employee may not stand at the grounding location for overhead lines (4) Illumination provided for spaces for safe work. (5) Protective shields and barriers provided and used for work in confined spaces to protect against exposed energized (6) All conductive materials such as pipes, rods, etc., handled to prevent contact with exposed energized conductors. (7) Portable ladders with nonconductive side rails used when they could contact exposed energized (8) Conductive articles of jewelry and clothing such as watches, rings, ect. Worn if they might contact exposed energized (9) Housekeeping conducted only when energized parts may not be contacted. Barriers provided and nonconductive cleaning materials used USE OF EQUIPMENT Portable electric equipment such as cord and plug-connected equipment including flexible cord sets are covered (1) Handled in a manner to avoid damage *Not used to raise or lower equipment *Not fastened with staples or hung so as to damage insulation. (2) (1) Visually inspected before each use on any shift Defective removed from service and not used until rendered safe. Fig. 8.5A 8 22

4 Plugs and receptacles mate properly (3)(I) Flexible grounding-type cords have grounding conductor Connect plugs and receptacles to provide proper grounding and avoid grounding pole connection to currentcarrying Adapter which interrupts grounding continuity not used. (4) Approved equipment utilized for work in highly conductive work locations (wet conditions ect.) (5)(I) Employees hands are not wet when plugging and unplugging flexible cords and cord and plug connected equipment, if energized equipment is involved. Insulating protective equipment used when energized plug and receptacle connections must be handled (wet conditions ect. Locking-type connectors are properly secured after connections Electric power and lighting circuits (1) Only load rated switches, circuits breakers, used as disconnecting means (2) Circuits not manually reenergized until determined that is safe to do so. (3) Overcurrent protection of circuits are not modified (c) Test instruments and equipment (1) Used by qualified person only (2) Visually inspected before use (3) Rated to circuits tested and designed for environment. NOTE: If circuit tested us over 600 volts, normal, check test equipment for proper operation immediately before and immediately before and immediately after the test. (d) Flammable or ignitable materials Electric equipment capable of igniting flammable or ignitable materials are not used SAFEGUARDS FOR PERSONNEL PROTECTION Protective Equipment including Personal Protective Equipment (1)(I) Used when there is potential electrical hazards and appropriate for parts of body protected Maintained in safe and reliable condition and periodically inspected (per ). Protected from damage during use (IV) To protect head from damage during use (v) To protect head from electric shock of burn and is nonconductive Fig. 8.5-A 8-23

5 (2) General protective equipment and tools (I) Use insulated tools or handling equipment when conductors may be contracted (A) Insulated fuse handling equipment used to remove or install fuses when terminals energized (B) Ropes and hand lines used near energized parts are nonconductive Protective shields, protective barriers, or insulating materials used to protect employees working near exposed energized Alerting techniques (1) Safety sign and tags used when necessary to warn employees about electrical hazards ( ) (2) Barricades used with safety signs when necessary to prevent or limit employees access to work areas with uninsulated energized conducts or (3) Attendances stationed to warn when signs and barricades are not sufficient Completed By: Title: Date: Completed By: Title: Date: Fig.8.5-A 8-24