Electrical Circuits and Conductors

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What is the minimum amperage rating for a 1 AWG branch circuit?

600 A (correct)

800 A

1000 A

400 A

What is the primary difference between a bare conductor and an insulated conductor?

Bare conductors have a thin insulation, while insulated conductors have a thick insulation.

Bare conductors are always copper, while insulated conductors are aluminum.

Bare conductors are used for residential, while insulated conductors are used for commercial.

Bare conductors have no electrical insulation, while insulated conductors have recognized insulation. (correct)

What is the minimum volt-amperage rating for a single receptacle outlet?

180 VA (correct)

200 VA

120 VA

150 VA

What is considered a continuous load in terms of maximum current?

Maximum current for 3 hours or more Signup and view all the answers

What is the minimum volt-amperage rating for each receptacle in a multiple receptacle outlet?

90 VA Signup and view all the answers

What is a requirement for the installation of conductors and equipment?

They must be installed and/or accepted only if they are approved Signup and view all the answers

What is the minimum length requirement for feeder conductors?

Less than 7.5 m (25 ft.) Signup and view all the answers

What is the minimum ampacity requirement for conductors tapped to a feeder?

At least 1/3 of the feeder conductor Signup and view all the answers

What is the purpose of a service protective device?

To provide additional protection for service-entrance conductors Signup and view all the answers

What is the maximum total length of tap conductors?

Exactly 30 m Signup and view all the answers

What type of conductors are defined as being between the service point and the first point of connection to the service-entrance conductors at the building?

Service conductors, overhead Signup and view all the answers

What is the minimum size requirement for tap conductors?

14 mm2 copper or 22 mm2 aluminum Signup and view all the answers

What is the requirement for the arrangement of 3-phase horizontal common power and vertical buses?

A, B, C from front-back, top-bottom, or left-right Signup and view all the answers

What is the maximum number of sets of service-entrance conductors that can be supplied by a service drop, set of OSC, or set of USC?

One Signup and view all the answers

What type of conduit is permitted for use in corrosive influences, cinders, wet locations, and dry and damp locations?

Reinforced Thermosetting Resin Conduit (Type RTRC) Signup and view all the answers

What is the requirement for the phase arrangement of rear-mounted units?

C, B, A from front-back, top-bottom, or left-right Signup and view all the answers

What is the purpose of a cable bus?

To securely fasten and support conductors and conductor terminations Signup and view all the answers

What is NOT a permitted use of Reinforced Thermosetting Resin Conduit (Type RTRC)?

Hazardous locations Signup and view all the answers