2-5-5

Question 1

An IEEE Class 1 Termination does not provide a seal to the external environment and must be sealed with two layers of tape

Answer 1

false

Question 2

One function that an IEEE Class 1 Termination provides is __?__ between the high voltage conductor and ground.

Answer 2

external leakage protection

Question 3

Three problems that are associated with a non-shielded termination include __?__, electrical connection of the conductor, and physical protection of the cable insulation.

Answer 3

mechanical support

Question 4

A(n) __?__ gradually increases the total thickness of insulation from the edge of the semi-conducting shield out to a certain point on the cable’s insulation.

Answer 4

stress cone

Question 5

The two functions of a termination insulator are to provide BIL protection against flashover damage and to provide __?__ protection for the cable’s insulation.

Answer 5

tracking

Question 6

In addition to the termination’s voltage stress, two conditions are necessary for tracking. One condition is contamination and the other is __?__.

Answer 6

moisture

Question 7

The two best insulator materials for providing cable tracking protection are silicone rubber and __?__.

Answer 7

porcelain

Question 8

The upper level at which a termination can withstand surges, such as lightning surges is known by the initials __?__.

Answer 8

BIL

Question 9

The upper level at which a 15-kilovolt rated termination can withstand surges, such as lightning, is __?__ crest.

Answer 9

110kv

Question 10

An IEEE Class1 Termination has two seals located at the top and bottom.

Answer 10

true

Question 11

The function of the bottom seal on a IEEE Class 1 Termination is to provide a(n) __?__ to the cable jacket and ground wire.

Answer 11

moisture seal

Question 12

Some porcelain terminations are referred to as “potheads.” A pothead performs sealing functions because it is filled with a(n) __?__.

Answer 12

potting compound

Question 13

A termination’s __?__ distance is the surface distance between a conductor and ground, also referred to as the string distance.

Answer 13

creepage

Question 14

Assume a five-kilovolt rated cable to be terminated indoors in switchgear, the thickness of the stress cone at its peak (T) is __?__.

Answer 14

quarter of an inch

Question 15

The type of stress control used in heat shrink terminations is a __?__.

Answer 15

stress control tube

Question 16

A basic (tubular) heat shrink termination for outdoor use can be upgraded by installing separate heat shrink skirt(s).

Answer 16

true

Question 17

The way to shrink a Quick Term II Termination onto the cable is to slide the termination body onto the cable and remove the core. Starting with the loose end, pull while unwinding __?__.

Answer 17

counter-clockwise

Question 18

The type of IEEE termination that provides stress control and should be used in a clean, dry environment is the Class __?__.

Answer 18

3

Question 19

Without stress control, the cable’s electric field becomes very concentrated and the resulting voltage stress is high enough to break down the air. This break down is referred to as a partial discharge or __?__.

Answer 19

corona

Question 20

The information sheet to this lesson names __?__ common termination types.

Answer 20

5

Question 21

Tape termination is not one of the common termination types because it takes too long to apply.

Answer 21

false

Question 22

Terminations are categorized as live-front connections.

Answer 22

true

Question 23

For additional protection, the termination’s creepage path may be covered with __?__ tape.

Answer 23

silicone