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ELECTRICAL INSTALLATION QUESTIONS AND ANSWERS

1bi)Silver
1bii)copper
1biii) aluminum
1biv)brass

1c) loadibg

1di) Wiring continuity test
Insulation resistance test
Earth continuity test
Earth resistivity test,
Performance test,

1dii)Fuse Characteristics.
Relay Characteristics.
Power Circuit Breakers.
Automatic Circuit Reclosers.
Automatic Line Sectionalizers.
Circuit Switchers
Digital Fault Recorders
(Choose any 5)
1e) check pictures

Electrical installation

(4ai)
(i) Lower Communication Cost
(ii) More Reliable
(iii) Better Response

(4aii)
(i) Need for complex and expensive software
(ii) Overheads for improper data distribution
(iii) Data integrity

4bi)
=Health Issues
=Heat exhaustion due to =heavy sweating.
=Low blood pressure.
=Dehydration due to constant perspiration.
=Fatigue and muscle cramps.
=Nauseating and fainting

4bii)
=There are many causes of power failures in an electricity network. Examples of these causes include faults at power stations, damage to electric transmission lines, substations or other parts of the distribution system, a short circuit

= cascading failure, fuse or circuit breaker operation.

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