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Types of Electrical Wires Exam Questions with Complete Solutions Latest Update 2024 ( Already Passed) $7.99   Add to cart

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Types of Electrical Wires Exam Questions with Complete Solutions Latest Update 2024 ( Already Passed)

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Types of Electrical Wires Exam Questions with Complete Solutions Latest Update 2024 ( Already Passed) Stranded - Answers A collection of smaller wires twisted around a solid core Concentric - Answers One wire surrounded by six wires Compact Concentric - Answers Like Concentric wire but crushed...

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  • November 4, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Types of Electrical Wires
  • Types of Electrical Wires
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TutorJosh
Types of Electrical Wires Exam Questions with Complete Solutions Latest Update 2024 ( Already
Passed)

Stranded - Answers A collection of smaller wires twisted around a solid

core

Concentric - Answers One wire surrounded by six wires

Compact Concentric - Answers Like Concentric wire but crushed together leaving space

Bunched - Answers Very small strands together forming a very flexible cord

Rope - Answers several concentric cables twisted together with rubber sheathing

Insulators - Answers preventing unwanted current flow

Enamel - Answers A magnet wire

Varnish Cambric - Answers lead covered cable

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

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

Softens at 150 C

XLPE - Answers Cross-linked polyurethane

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

Colour Coding Wire - Answers Hots- Red, Black

Neutral (Grounded or Identified)- White or Grey

Bond/Ground- Green

Other Hots- Blue, Yellow, red and Orange

Residential Cable - Answers NMSC90 or Loomex

Non-Combustible Areas - Answers BX or AC90

Types of NMSC and Trade Name - Answers NMD90- dry 90 C Ambient, NMW- wet, NMWU- wet,
underground

Trade Name: Loomex

Types of AC and ASC - Answers AC90- dry, ACL- lead sheath good for wet

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