What is the purpose of guarding electrical equipment with exposed parts operating at 50 volts or more?

Electrical equipment should be guarded with exposed parts operating at 50 volts or more to avoid the accidental shock and also to prevent accidental contact by workers and their tools.

Explanation:

Electrical guarding involves the process by which electrical equipment are enclosed so that people do not accidentally come in contact with it in order to avoid accidental shock.

Electrical components operating at 50 volts or more must be guarded with covers or other permanent barriers and it should be put where the people that are authorized to it have acess to it.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

it is b. absorbs thermal energy