Conductors

Is it feasible to install all powerlines underground?

• True

• False

What is the purpose of the strand shield in underground cable

• Provide insulation between the conductor and insulation

• Prevent migration of moisture into the strands

• Protect the insulation from the concentric stands

• Protect the concentric neutral strands from corrosion

what component is used to mitigate voltage stress

• conductor shield

• semi-conducting shield

• Insulation

• concentric neutral

Most commonly used subtransmission and transmission cable is

• PILC

• underwater application for cooling

• placed in a conduit that is filled with circulating oil

• placed in concrete casing for protection

Where different utilities share the same trench is called

the distance that power and communication cables are placed from each other in a trench is known as ?

• Spread

• calculated seperation

• random seperation

• fanning

temporary trench support is

how far must spoils be kept from the excavation edge?

• 1 foot

• 2 foot

• 3 foot

• 4 foot

what is jam ratio?

• pressure required to install an elbow

• cable binding in undersized conduit

• directional bore binding during operation

• amount of friction caused by not using pulling compound

Directional boring machines are typically used

• when installing ocean marine cable

• to replace old conduits

• for road and railroad crossings

• to plow cable