Guidelines

Which type of conductor or cable is permitted to be used in a wet location?

Which type of conductor or cable is permitted to be used in a wet location?

Type AC cable is approved by the NEC for use only in dry locations. In order to comply with the NEC for use in wet locations, interlocked Type MC Cable must have a corrosion resistant jacket and wet location rated conductors. A common style cable that is rated for wet locations is a standard MC Cable with a PVC jacket.

Which raceways may be used in wet locations?

Rigid polyvinyl chloride conduit (PVC) is a rigid nonmetallic conduit that provides many of the advantages of RMC, while allowing installation in areas that are wet or corrosive. PVC conduit is an inexpensive, easily installed raceway.

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Which of the following conditions must be met before conductors are permitted by the NEC to be run in parallel?

All of the paralleled conductors in each phase, neutral or grounded set must be the same length and be made from the same conductor material. They must be the same circular mil area and have the same type of insulation. Finally, all parallel conductors must be terminated in the same manner.

What type of conduit is suitable for damp location?

PVC conduit is often used in underground and wet location applications. This type of conduit has its PVC fittings, connectors, couplings, and elbows. They are easy to attach with a cleaner and PVC glue.

Can ground wire get wet?

Well technically your entire frame is a ground and it comes in contact with water. I don’t recommend any wiring get wet because of corrosion but the answer is technically yes.

What happens if Romex gets wet?

In most homes, ROMEX® wire is used for electricity, where the copper ground wire is wrapped in paper and then, in turn, wrapped in the live and neutral wires. If this wiring is exposed either through a break in the plastic coating or even at the socket, the moisture can be soaked up by the paper, creating rust.

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When determining the number of current carrying conductors a grounding or bonding conductor shall not be counted when applying?

In accordance with 310.15(B)(6), a grounding or bonding conductor shall not be counted when applying the provisions of 310.15(B)(3)(a). The adjustment factor for six current-carrying conductors is 80 percent. Now multiply 115A by 0.80 (115 0.80 = 92).

Which type of insulated conductors and cables can be used in dry and damp location?

Insulated conductors and cables used in dry and damp locations shall be Types FEP, FEPB, MTW, PFA, RHH, RHW, RHW-2, SA, THHN, THW, THW-2, THHW, THWN, THWN-2, TW, XHH, XHHW, XHHW-2, Z, or ZW.

What are the 5 requirements for installing conductors in parallel?

(1) Be the same length. (2) Consist of the same conductor material. (3) Be the same size in circular mil area. (4) Have the same insulation type.

When determining the number of conductors that are current-carrying an equipment grounding conductor is?

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Six
In accordance with 310.15(B)(6), it is not required to count grounding and bonding conductors when applying the provisions of 310.15(B)(3)(a). For example, a raceway containing seven conductors has been installed. Six of the conductors are current-carrying, and one is an equipment-grounding conductor.

What wire is Cannot be used in wet locations?

THHN
As an example, two of the most common types of wire used in residential projects are THHN and THWN. THHN is thermoplastic, highly heat-resistant (up to 90 degrees C.), and nylon-jacketed. It is not suitable for wet locations.

Why is Romex not allowed in wet locations?

“Romex” (NM) does not belong in conduit, and it is not allowed for use in damp/wet locations. So the answer to your question is “no,” but this wiring method is improper for exterior lighting. ( wiring method is improper for exterior lighting. )