When installing an overhead service, __________ feet of conductor should stick out of the weather-head for the formation of a drip loop.

Where underground service cables exit the trench and run up a utility pole to the transformer, the conductors must be protected from physical damage to a height of __________ feet above final grade.

The grounding electrode conductor must be attached to a metal water pipe grounding electrode no more than __________ feet from the point where the metal water pipe enters the house.

A service mast is made of rigid metal conduit or intermediate metal conduit and should be at least a __________ trade size conduit to provide adequate strength.

Three or four USE conductors can be combined together in a single cable assembly and used in a residential underground service installation. This type of cable is referred to as __________ cable.

Check My Work

The working space in front of residential service equipment as stated in NEC Section 110.26 is __________ feet.

Check My Work

If a metal water pipe is used as a grounding electrode, a supplemental grounding electrode must be used only if the resistance to ground is less than 25 ohms.

In a sub-panel, the grounding bar and the neutral bar are electrically separate.

When connecting sub-panel feeder conductors in the main panel, both the grounded neutral conductor and the grounding conductor are kept separate in the main panel.