What safeguards does OSHA require for personnel protection from electrical hazards? Answer in under 100 words.

Details / How it works

OSHA § 1910.335, codified within 29 CFR Part 1910 Subpart S (Electrical), organizes safeguards into two categories.

Use of protective equipment

• Personal protective equipment: Employees working in areas with potential electrical hazards shall be provided with, and shall use, electrical protective equipment appropriate for the specific body parts to be protected (e.g., head, eyes, face, hands) and for the work performed.
• Maintenance: Protective equipment (including rubber insulating gloves, sleeves, and blankets) must be maintained in a safe, reliable condition and periodically inspected or tested as required by § 1910.137 (Electrical Protective Equipment).

General protective equipment and tools

• Insulated tools or handling equipment must be used when working near exposed energized conductors or circuit parts that tools might contact.
• Fuse handling equipment insulated for the circuit voltage is required to remove or install fuses whose terminals are energized.
• Ropes and handlines used near exposed energized parts shall be nonconductive.
• Protective shields, barriers, or insulating materials shield employees from shock, burns, and arcing injuries near exposed energized parts.

Alerting techniques

• Safety signs, safety symbols, or accident prevention tags (as specified by § 1910.145) warn employees of electrical hazards.
• Barricades, used together with safety signs, prevent or limit access to work areas exposing employees to uninsulated energized conductors or circuit parts.
• An attendant shall be stationed to warn and protect employees whenever signs and barricades alone provide insufficient warning.

Numbers & thresholds

No numeric exposure limits are set within § 1910.335 itself; its safeguards apply to any area containing potential electrical hazards regardless of voltage.

Exceptions & edge cases

• Damaged insulation: Where the insulating capability of protective equipment may be subject to damage during use (e.g., sharp edges, punctures, abrasion), the insulating material must be protected — for example, an outer covering of leather over rubber insulating gloves.
• Conductive barricades: Conductive barricades may not be used where they might cause an electrical contact hazard (e.g., becoming energized through accidental contact).
• Guarding for unqualified persons: When normally enclosed live parts are exposed for maintenance or repair, they shall be guarded to prevent untrained individuals from contacting live parts.
• Conditional attendants: Attendants are required only when safety signs and barricades do not provide sufficient warning and protection.
• Electric power work: An employer who complies with the work practices of § 1910.269 (electric power generation, transmission, and distribution) is deemed in compliance with the § 1910.335 safeguards for personnel protection.