Licensed Electrical Contractor FREE Licensed Electrical Contractor Safety and OSHA Regulations Questions and Answers 2

Question 1

What is the minimum approach distance for a qualified electrical worker near exposed energized parts operating at 750V to 15kV?

Accepted Answer

1 foot

Answer

OSHA 29 CFR 1910.333(c) establishes a minimum approach distance of 1 foot for qualified persons working near exposed energized conductors rated 750V to 15kV.

Question 2

Under OSHA regulations, which of the following is required before performing maintenance on electrical equipment?

Accepted Answer

Lockout/tagout procedures must be implemented

Answer

OSHA 29 CFR 1910.147 requires the implementation of lockout/tagout (LOTO) procedures to ensure equipment is de-energized and cannot be restarted during maintenance.

Question 3

What color is used to identify safety ground wires in electrical installations per NEC requirements?

Accepted Answer

Green or green with yellow stripes

Answer

The NEC requires equipment grounding conductors to be identified by green, green with one or more yellow stripes, or bare copper.

Question 4

According to OSHA, at what voltage level must electrical protective gloves be tested before each use?

Accepted Answer

Any voltage above 50V

Answer

OSHA requires insulating gloves to be used and tested when working on or near energized parts operating above 50 volts to protect against electrical shock.

Question 5

What does OSHA require employers to provide when employees work in confined spaces with potential electrical hazards?

Accepted Answer

A written permit-required confined space program

Answer

OSHA 29 CFR 1910.146 requires employers to develop and implement a written permit-required confined space program when employees must enter confined spaces with recognized hazards.

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Licensed Electrical Contractor FREE Licensed Electrical Contractor Safety and OSHA Regulations Questions and Answers 2