IEC NEC Code General Requirements 3

Question 1

According to NEC 110.26(B), what is the minimum width of the working space in front of electrical equipment?

Accepted Answer

The width of the equipment or 30 inches, whichever is greater

Answer

NEC 110.26(B) requires the working space width to be the width of the equipment or 30 inches, whichever is greater.

Question 2

Under NEC 110.16, electrical equipment in other than dwelling units must be marked to warn qualified persons of potential arc flash hazards. Where must this warning label be located?

Accepted Answer

On the equipment so it is visible before examination, adjustment, servicing, or maintenance

Answer

NEC 110.16 requires arc flash warning labels to be field-applied to the equipment so the label is visible before examination, adjustment, servicing, or maintenance.

Question 3

What does NEC 110.2 state about the approval of conductors and equipment?

Accepted Answer

Conductors and equipment required or permitted by the NEC shall be acceptable only if approved

Answer

NEC 110.2 states that conductors and equipment required or permitted by the Code shall be acceptable only if approved by the authority having jurisdiction.

Question 4

NEC 110.26(C)(2) requires two entrances/exits from working spaces around electrical equipment under what condition?

Accepted Answer

Equipment rated 1200 amperes or more and over 6 feet wide

Answer

NEC 110.26(C)(2) requires two means of entrance/exit when the equipment is rated 1200 amperes or more and the working space is 6 feet wide or more.

Question 5

According to NEC 110.13, electrical equipment shall be firmly secured to the surface on which it is mounted. What exception exists for this requirement?

Accepted Answer

Plug-in type equipment

Answer

NEC 110.13(A) requires firm securement, but plug-in type equipment that is designed to be connected by attachment plugs is exempted from this requirement.

IEC - Independent Electrical Contractors Practice Test

IEC - Independent Electrical Contractors Practice Test

IEC NEC Code General Requirements 3