equipotential zone grounding

Question 1

An equipotential zone is created by ?

Answer 1

placing a low resistance shunt in parallel with the worker

Question 2

Because equipotential is a proven grounding method, it is the one required by OSHA, outlined in CFR ? Subpart R.

Answer 2

1910.269

Question 3

The term “equipotential” means the exact voltage is maintained between the worker’s hands and feet.

Answer 3

false

Question 4

An equipotential zone is one that ?

Answer 4

maintains the v across a worker at an acceptable low level.

Question 5

An equipotential zone protects the worker by ?

Answer 5

providing a bypass for body current paths

Question 6

An equipotential zone can only be used on deenergized lines.

Answer 6

true

Question 7

The main reason to establish an equipotential zone at a worksite is to ?

Answer 7

bypass the major portion of current around the worker

Question 8

A connection to earth is always required when using equipotential grounding.

Answer 8

false

Question 9

The outside grounds that are part of a bracket ground, if used with an equipotential ground, are there to ?

Answer 9

alert the circuit protection devices to the presence of a fault

Question 10

The personal jumper consists of one or more ground cables with clamps and a ?

Answer 10

cluster bar

Question 11

The typical body resistance of a worker is 1,000 ohms. A 50-volt drop across this worker would result in a body current of ?

Answer 11

50mA

Question 12

OSHA Law requires grounding to have an ampacity greater than or equal to that of ? copper.

Answer 12

2 awg

Question 13

When establishing a grounding scheme, a worker aloft does not have to make a connection to earth if the grounding equipment is sized correctly.

Answer 13

true

Question 14

Bracket grounds used as part of a grounding scheme are also called ? grounds.

Answer 14

trip