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Q: How is grounding continuity established with flexible conduit?
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Does the Nec allow grounding electrode conductor to be run in conduit that has other conductors in the conduit and what code section?

No, the bare copper grounding conductor can not be in a conduit with other conductors. It can be in conduit by itself to provide mechanical protection for the wire.


Are ground wires required in steel or aluminum flex conduits?

Yes, any flexible conduit that has live wires drawn into it must have a ground wire also installed with the "hot" conductors. The reasoning behind this rule is that the flex in the conduit is coiled and has a long length to it. The continuation of the grounding medium through the tightness of the conduit connectors to the flex was not considered a properly secured grounding system so to overcome this weakness in the grounding system, a ground wire now has to be installed.


Does the metal conduit count as a ground?

No, each conduit must contain a separate grounding conductor.


Is it necessary to ground at all metal junction boxes when using metal conduit or cable?

In a completely metallic conduit system it is not necessary to ground each junction box as long as the metallic system has the grounding capacity rating larger than that of the over current device protecting the circuit. The code book states what size conduits are rated at, for grounding amperages.


Is it legal to support a conduit from another conduit of the same size?

No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.

Related questions

Is it permitted to use flexible metal conduit over 6 ft in length as a grounding means?

is it permitted to use flexible metal conduit over 6 ft in length as a grounding means


Is it permitted to use flexible conduit over 6 feet in length as a grounding means?

No. The new electrical code change does not allow any flexible conduit to be used as a ground means. It is now required to have a green ground wire pulled into the conduit with the other conductors in the flexible conduit. This grounded bonding conductor is not counted as wire fill when calculating the size of the flexible conduit to use


Does the Nec allow grounding electrode conductor to be run in conduit that has other conductors in the conduit and what code section?

No, the bare copper grounding conductor can not be in a conduit with other conductors. It can be in conduit by itself to provide mechanical protection for the wire.


Are ground wires required in steel or aluminum flex conduits?

Yes, any flexible conduit that has live wires drawn into it must have a ground wire also installed with the "hot" conductors. The reasoning behind this rule is that the flex in the conduit is coiled and has a long length to it. The continuation of the grounding medium through the tightness of the conduit connectors to the flex was not considered a properly secured grounding system so to overcome this weakness in the grounding system, a ground wire now has to be installed.


Does the metal conduit count as a ground?

No, each conduit must contain a separate grounding conductor.


Do light fittings need to be earthed?

Normally the fixtures come with a grounding screw that you attach the grounding wire to. If the box you attaching the fixture to is metal and there is no grounding wire present then the grounded conduit should ground you fixture.


When running flexible conduit it is required to strap the inches from a box coupling or connector and requires a strap every feet thereafte?

When runing flexible conduit it is required strap the it inches from a box coupling or conector


When running flexible conduit it is required to strap the it inches from a box coupling or connector and requires a strap every feet thereafter?

When runing flexible conduit it is required strap the it inches from a box coupling or conector


What is a radiator hose?

It is a flexible conduit for the coolant to flow between the engine and the radiator.


Where is the main service panel located in this residence?

Liquid tight metal conduit may serve as a grounding means in sizes up to and including what in.


Is it necessary to ground at all metal junction boxes when using metal conduit or cable?

In a completely metallic conduit system it is not necessary to ground each junction box as long as the metallic system has the grounding capacity rating larger than that of the over current device protecting the circuit. The code book states what size conduits are rated at, for grounding amperages.


Where could one purchase a flexible conduit for DIY purposes?

Do-It-Yourself meccas Lowes and Home Depot have flexible conduits for sale online and in their physical stores. Grainger also has flexible conduits on its website.