Exam 9: Using Wire Tables and Determining Conductor Sizes

When selecting conductors for a particular application, the ambient temperature correction factors note need not be considered.

The NEC® defines a(n) ____________________ load as one where the maximum current is expected to continue for three hours or more.

AWG stands for ______________________________ which is the standard for determining wire size.

A circular mil is the ____ of the wire in mils squared.

Which of the following conditions must be met before conductors are permitted by the NEC to be run in parallel?

The gauge ____________________ is important for determining the current carrying capacity of a conductor.

____________________ is the nonconductive covering around a wire that helps determine the amperage and voltage rating of the wire.

The conductors listed in NEC Tables 310.18 and 310.19 are generally used for ____ temperature locations.

If a conductor is to be installed in an area where the ambient temperature is not 86 degrees F, the _________________________ chart located at the bottom of NEC T310.16 is used to help determine the proper size conductor.

If more than three conductors are to be used in a raceway, the ampacity of the conductors must be ____________________ because of heat buildup in the raceway.

____________________ are used when it is necessary to bury a group of electrical ducts or cables in the ground and maintain a separation between ducts or cables of at least 7.5 inches.

A ____________________ circuit exists when there is a current path between conductors.

For almost all applications, an electrician will use the ______________________________ to determine the correct conductor size.

A location that is not normally subject to dampness or wetness is called a ____ location.

When determining the conductor size for a particular application, you are determining the maximum current a conductor can carry.

NEC® 110.14(C) states that the temperature rating of a conductor must be selected so as not to exceed the lowest temperature rating of any connected conductor, termination or device.

When determining conductor size for an area where ambient temperature is a concern, you must divide the needed current by the correction factor.

A(n) _________________________ is an English measure for determining the cross-sectional area of round wire.

A location that is subject to saturation by water is called a ____ location.

When using a megger to test a circuit for grounds or shorts, the meter should be set ____.