CEI CEI Service Entrance & Metering Inspection

Question 1

According to NEC 230.70, where must the service disconnecting means be located?

Accepted Answer

Outside the building or nearest the point of entrance of service conductors

Answer

NEC 230.70(A)(1) requires the service disconnecting means to be installed at a readily accessible location either outside the building or inside nearest the point of entrance.

Question 2

What is the maximum number of disconnects allowed for a service entrance under NEC 230.71?

Accepted Answer

Six disconnects per service

Answer

NEC 230.71(A) permits a maximum of six disconnects per service, with each disconnect serving a separate load.

Question 3

During a service entrance inspection, you observe service-entrance conductors routed through the interior of a building before reaching the service equipment. Per NEC 230.6, which condition would allow this?

Accepted Answer

The conductors are encased in 2 inches of concrete

Answer

NEC 230.6 considers service conductors outside a building when encased in at least 2 inches of concrete beneath a building or structure.

Question 4

What is the minimum clearance required between service-drop conductors and a roof surface with a slope of less than 4 inches in 12 inches?

Accepted Answer

3 feet

Answer

NEC 230.24(A) requires service-drop conductors to maintain a minimum clearance of 3 feet from the roof surface for roofs with less than a 4-in-12 slope.

Question 5

When inspecting overhead service conductors, what is the minimum clearance required above a public sidewalk?

Accepted Answer

12 feet

Answer

NEC 230.24(B) requires service-drop conductors to maintain a minimum vertical clearance of 12 feet above a sidewalk accessible to pedestrians.

(CEI) Certified Electrical Inspector Practice Test

(CEI) Certified Electrical Inspector Practice Test

CEI CEI Service Entrance & Metering Inspection