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12 Questions

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Types of Cables in Electrical Wiring

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Questions and Answers

What is the main purpose of Underground Feeder and Branch Circuit Cable (UF)?

To provide power for appliances

To be used on medium voltage circuits

Moist resistant cable for underground connections (correct)

To be used in cable trays and raceways

What is the primary use of Power and Control Tray Cable?

For installation in cable trays and raceways (correct)

As feeder or branch circuit in the ground

For service wire installations

In metal surface or raceways for field insulation

What is the main characteristic of Flat Conductor Cable (FCC)?

Assembly of parallel conductors with insulating web (correct)

Rated at 2,000 volts only

Used for power systems up to 35,000 volts

Factory assembled with one insulated conductor

What does Ampacity refer to in electrical conductors?

Capacity to carry current without overheating Signup and view all the answers

What does Section 3.1.2.1 of the NEC specify regarding conductors?

Ensure conductor size has sufficient ampacity to carry load Signup and view all the answers

What types of Medium Voltage Cables (MV Cables) are mentioned in the text based on their temperatures?

MV - 75; MV - 85; MV - 90 Signup and view all the answers

Which type of cable is a factory assembly of two or more insulated conductors enclosed in a non-metallic material outer sheath?

Shielded Non-Metallic Sheathed Cable (SNM) Signup and view all the answers

Which type of cable is used for service feeders, branch circuits, and indoor or outdoor work enclosed in metallic sheath?

Metal Clad Cable (MC) Signup and view all the answers

Which type of cable is used in dry, wet, or continuously moist locations as service feeders or branch circuits?

Mineral Insulated Cable (MI) Signup and view all the answers

Which type of cable is specially used for one- or two-family dwellings not exceeding 3 storey buildings?

Non-Metallic Sheathed Cable (NM) Signup and view all the answers

Which type of cable is a factory assembly of insulated conductors enclosed in flexible metal sheath for both exposed and concealed work?

Armored Cable (AC) Signup and view all the answers

Which type of cable is used in hazardous locations and in cable trays or raceways with an extruded core of moisture resistant material covered within an overlapping spiral metal tape?