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Types of Electrical Wires Exam Questions With Verified Answers.

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  • Electrical Wiring
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  • Electrical Wiring

Types of Electrical Wires Exam Questions With Verified Answers. Stranded - answerA collection of smaller wires twisted around a solid core Concentric - answerOne wire surrounded by six wires Compact Concentric - answerLike Concentric wire but crushed together leaving space Bunched - answerVer...

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  • November 13, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Electrical Wiring
  • Electrical Wiring
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Thebright
©THEBRIGHT EXAM SOLUTIONS

11/06/2024 7:22 PM



Types of Electrical Wires Exam Questions
With Verified Answers.



Stranded - answer✔A collection of smaller wires twisted around a solid

core

Concentric - answer✔One wire surrounded by six wires

Compact Concentric - answer✔Like Concentric wire but crushed together leaving space

Bunched - answer✔Very small strands together forming a very flexible cord

Rope - answer✔several concentric cables twisted together with rubber sheathing

Insulators - answer✔preventing unwanted current flow

Enamel - answer✔A magnet wire

Varnish Cambric - answer✔lead covered cable

Thermoplastic - answer✔Identified flame test is that it should self extinguish. Examples: PVC (Polyvinyl
chloride)

PVC Types - answer✔Types: T- dry type, TW- wet or dry, TWU wet, dry or underground

Softens at 150 C

XLPE - answer✔Cross-linked polyurethane

Minerals for High Temp Insulation - answer✔Mica, Asbestos, Magnesium oxide and Pyrotenax

Colour Coding Wire - answer✔Hots- Red, Black

Neutral (Grounded or Identified)- White or Grey

Bond/Ground- Green

Other Hots- Blue, Yellow, red and Orange

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