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