2-5-8

Question 1

The layer of a medium or high voltage shielded power cable that must be grounded is the cables __?__.

Answer 1

metalic sheild

Question 2

If no grounding specifications are available for a cable installation, the ground(s) should be located at __?__, as well as aerial pole-mount locations.

Answer 2

access point

Question 3

Cables are usually grounded at cable accessories because they share the same grounding locations.

Answer 3

true

Question 4

Most cable accessory kits contain instructions and materials for making a ground connection. These materials must be used for grounding at the job site location.

Answer 4

false

Question 5

When grounding is not specified, it is common practice to ground at each __?__. (Check all correct answers.)

Answer 5

elbow, splice, termination

Question 6

The ground conductor size that has traditionally been recommended for non-specified jobs is __?__ AWG, which can be solid copper or ground braid.

Answer 6

6

Question 7

For single-point grounding, the cable is grounded at only one location, usually at a __?__.

Answer 7

termination

Question 8

Single-point grounding is used to prevent induced currents (circulating currents), by eliminating a closed-circuit (loop) of ground conductors.

Answer 8

true

Question 9

Single-point grounding is usually limited to relatively __?__.

Answer 9

short runs

Question 10

One disadvantage of single-point grounding is that the full magnitude of any fault is forced down __?__ to ground.

Answer 10

a single path

Question 11

Double-end grounding reduces fault currents by dividing the current between the two grounds.

Answer 11

true

Question 12

A shield break disrupts the shield continuity of a termination or splice. To prevent shield breaks on splices and terminations, the __?__.

Answer 12

shielding is overlapped

Question 13

A shield break disrupts the shield by overlapping the shield ends and separating them with a layer of insulation. This leaves the cable or splice fully shielded radially, but without __?__.

Answer 13

longitudinally continually

Question 14

Cross bonding has two advantages, one of single-point grounding by neutralizing shield currents, and also the advantage of double-end grounding, by reducing __?__.

Answer 14

falut current

Question 15

Shield cross bonding is connected among the three phases of a circuit by connecting __?__ across the breaks.

Answer 15

insulated jumpers

Question 16

A government agency which provides regulations and standards for rural electric utilities is known as the __?__

Answer 16

rural utility service

Question 17

The Quarter Mile Grounding rule for rural electric utilities for direct buried, jacketed distribution cables is that they must have at least __?__ grounds per mile, minimum.

Answer 17

4

Question 18

In addition to the standard shield functions, concentric neutral wires also serve as a current carrying component of the electric circuit, by providing a path for the return current.

Answer 18

true

Question 19

The ground wire used for connecting a concentric neutral cable to ground is __?__.

Answer 19

the entire concentric itself

Question 20

On a premolded splice or elbow, the bleeder wire’s function is to minimize any voltage drop formed across a splice’s or elbow’s semi-conducting jacket, thereby dissipating any unsafe voltage to ground.

Answer 20

true

Question 21

The traditional method for connecting a cable accessory’s metallic ground to a cable’s metallic shield is by __?__.

Answer 21

soldering

Question 22

Most contemporary cable accessory kits eliminate the need to solder. The most common solderless ground connection provided in kits today is the __?__.

Answer 22

constant force string