Protective Line Devices, Care and Use

Question 1

Common way to perform live-maintenance is with the ?

Answer 1

Rubber gloved method

Question 2

All other rubber or plastic cover-up equipment is used for the intent of protection against ?

Answer 2

accidental or brush contact

Question 3

A second point of contact is defined as ?

Answer 3

the point where current leaves the body if contact is made with a hot circuit

Question 4

All rubber insulating protective equipment must be treated with care, kept clean, and inspected at regular intervals and before each use.

Answer 4

True

Question 5

In the field, rubber gloves should be given an air test before each use and always used with leather protectors.

Answer 5

True

Question 6

How should rubber gloves be stored?

Answer 6

rubber gloves should be stored in a canvas bag with the cuffs down to prevent debris from falling into the gloves

Question 7

OSHA requires Rubber Gloves be tested every ?

Answer 7

6 months

Question 8

How should Rubber blankets be stored?

Answer 8

Rubber blankets should be inspected for imbedded objects and stored in canvas or PVC containers.

Question 9

Rubbing line hose should be cleaned ? and inspected for ?

Answer 9

Rubber line hose should also be regularly cleaned and inspected by spreading the line hose open and looking for cuts or evidence of corona damage.

Question 10

How do you wash Rubber line hoses?

Answer 10

Line hose can be washed with a mild detergent and warm water; avoid using a harsh brush to clean off any contaminant.

Question 11

Line hose comes in various lengths and in diameters ranging from 1 to 11∕2 inches.

Answer 11

true

Question 12

How do Line hoses need to be handled?

Answer 12

Line hose should never be laid on the ground or dropped from poles or structures.
Rubber line hose should always be raised and lowered with a hand line and/or canvas bag.

Question 13

Rubber hoods should receive the same cleaning, inspections, and storage care as line hoses.

Answer 13

True

Question 14

Voltages as low as 2,400 volts can cause damage to rubber.

Answer 14

True

Question 15

Most rubber protective equipment used in the electrical industry is made from natural rubber, even though it is not resistant to ozone.

Answer 15

True

Question 16

What are the two causes to Ozone damage.

Answer 16

misapplication and improper storage

Question 17

A very small concentration of ozone causes rapid oxidation of rubber.

Answer 17

True

Question 18

Oil and grease are natural enemies of rubber. If exposed to either, rubber should be cleaned with hot, soapy water. After such an exposure, the gloves should be electrically tested.

Answer 18

True

Question 19

Line hose or blankets should never be used to insulate one conductor from another.

Answer 19

True

Question 20

Doubling of rubber goods does not increase their insulating value.

Answer 20

True

Question 21

Rubber blankets are the only things used to cover insulators.

Answer 21

False

Question 22

A conductor cover, fabricated from high-dielectric polyethylene, clips on and covers conductors up to ? in diameter.

Answer 22

2”

Question 23

To prevent tie wires from contacting the crossarm when conductors are being tied or untied, ? are used.

Answer 23

high-dielectric-strength polyethylene crossarm covers

Question 24

Ozone is created by ? from the oxygen in the air, generally in quite low concentrations, but enough to damage rubber over time.

Answer 24

Sunlight

Question 25

The highest maximum use voltage for rubber insulating equipment for a phase-to-ground exposure is ? .

Answer 25

36k