Electrical Cables Quiz

The acronym XLPE refers to a

• Plain lead covered earth cable

• Mineral insulated cable

• Cross linked polyethylene insulated cable

• Point on a cable plan where a cable is laid on top of another cable

What type of gas is used in a gas filled cable?

• Carbon Dioxide

• Oxygen

• Helium

• Nitrogen

The purpose of screening 3-phase high voltage cables is to

• Stop electrolytic action

• Control tangential stresses

• Provide good earth continuity

• Give extra mechanical protection

On a cable plan the letters ABSD may appear. This would refer to

• Aerial bundled steel distributer

• Air blast system disengager

• Air break switch disconnector

• Aerial balanced safety distancer

When handling cold pour resins the mandatory PPE would be

• Overalls and eye protection

• Disposable gloves and breathing apparatus

• Breathing apparatus and overall

• Eye protection and disposable gloves

By cable spiking what potential risk is being controlled or minimised

• moisture

• flashover

• Results in deterioration

• puncture

The full form of PILCSWA in Underground cables refers to

• Plastic insulated lead covered steel wire armoured cable

• Plastic insulated laminated copper steel wire armoured cable

• Paper insulated lead covered steel wire armoured cable

• Paper insulated lead conductor steel wire armoured cable

One method of testing for moisture in oil is by

• Hygroscopic crystals

• Litmus paper

• A crackle test

• Gas produced by a fault

What type of connection is adopted to carry 400 kv HV lines

• Star connection with neutral

• Delta connection

• Star connection without neutral

The essential requirement of an earth electrode system is that it must

• Carry fault current indefinitely

• Carry a low resistance to atmospheric corrosion

• Have a low voltage gradient at the surface of the ground

• Have a low electrical resistance