Code Quiz of Day

A daily challenge on the requirements outlined in the National Electrical Code

Highlights

How Many Supplies are Allowed?

June 23, 2015
A building or structure shall be supplied by a maximum of _____ feeder(s) or branch circuit(s), unless specifically permitted otherwise.

Fulfilling Conductor Fill Requirements

June 10, 2015
When counting the number of conductors in a box, a conductor running through the box with an unbroken loop or coil not less than twice the minimum length required for free conductors...

Guarding of Live Parts

June 9, 2015
Entrances to rooms and other guarded locations containing exposed live parts shall be marked with conspicuous ______ forbidding unqualified persons to enter.

Identification of Grounded Conductor

June 8, 2015
Grounded conductors ______ and larger can be identified by distinctive white or gray markings at their terminations.

Attachment Height of Overhead Service Conductors

June 5, 2015
The minimum point of attachment of overhead service conductors to a building shall not be less than ______ above finished grade.