2-5-6

Question 1

An ideal cable joint (splice) should be as strong and reliable, both __?__, as the cable in which it is installed. Select the best answer.

Answer 1

electrically and phyically

Question 2

There are __?__ factors that cause longitudinal stresses in a splice

Answer 2

3

Question 3

Of the factors that cause longitudinal stresses in a splice, using unlike splicing materials is not one of them.

Answer 3

false

Question 4

The way the different parts fit together in relation to each other (geometry) in a joint is one of the factors that cause longitudinal stresses in a splice.

Answer 4

true

Question 5

The __?__ is another factor that causes longitudinal stresses in a splice.

Answer 5

connector shape

Question 6

A great deal of emphasis is placed on the elimination of air voids in a joint (splice) because they may be potential sources of __?__.

Answer 6

corona

Question 7

When the stress in the air voids in a joint exceeds the breakdown value, it ionizes, produces ozone, and becomes conductive.

Answer 7

true

Question 8

The product that was developed that first allowed medium and high voltage splices to be connected using standard crimp-type (compression) connectors is __?__.

Answer 8

semi conducting tape

Question 9

A __?__ can be defined as two or more conductors joined with a suitable connector, re-insulated, re-shielded, and re-jacketed with compatible materials applied to a properly prepared surface.

Answer 9

splice

Question 10

The reference materials list __?__ reasons for splicing shielded cables.

Answer 10

5

Question 11

Tapping into an existing cable is one of the reasons for splicing shielded cables.

Answer 11

true

Question 12

The industry standard that establishes electrical ratings and test requirements of shielded cable splices (joints) is the IEEE Standard __?__, Standard for Extruded and Laminated Dielectric Shielded Cable Joints Rated 2,500-500,000 V.

Answer 12

404

Question 13

A hand-wrapped tape splice is no longer one of the common types of splices used because it is too difficult to apply.

Answer 13

false

Question 14

One of the common types of splices used is the __?__ amp elbow splice.

Answer 14

600

Question 15

There are two shrink splices in common use, the heat shrink splice and the __?__ shrink splice.

Answer 15

cold

Question 16

One function of a medium or high voltage splice is to maintain metallic shield continuity.

Answer 16

true

Question 17

Controlling __?__ in the connector area is a function of a medium or high voltage splice.

Answer 17

electric stress

Question 18

A function of a medium or high voltage splice is to provide for __?__ years service life.

Answer 18

30-40+

Question 19

According to this lesson, there are __?__ basic steps in building a splice.

Answer 19

five

Question 20

Although modern splices are easier and faster to install than traditional splices, the cable preparation must still be performed by a well trained, experienced electrical worker.

Answer 20

true

Question 21

The proper type of connector for joining the aluminum conductors of two 15 kV shielded cables is a(n) __?__ connector

Answer 21

aluminum (AL/CU) inline compression

Question 22

Early splicing tapes would thermally insulate a tape splice, causing it to run hot and effectively de-rating it. Modern insulating tapes eliminate this problem by being designed and manufactured to be thermally conductive.

Answer 22

true

Question 23

Modern manufactured splice kits are normally easier and faster to install than traditional splices. But, they are generally more sensitive to proper kit selection, cable preparation dimensions, and __?__.

Answer 23

unique installation steps

Question 24

There is/are __?__ layer(s) of shielding that must be replaced when constructing a medium or high voltage splice

Answer 24

three

Question 25

The functions that a splice jacket provides include mechanical protection and moisture sealing protection.

Answer 25

true

Question 26

The key to a reliable medium or high voltage splice installation is good workmanship.

Answer 26

true