Conduit (electrical)

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Electrical Conduit risers, seen inside fire-resistance rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage.

Electrical Conduit is a pipe system used to protect cables. It is generally installed by licensed electricians.

[edit] Types

[edit] EMT (Electrical Metallic Tubing)

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[edit] Flexible Metal Conduit

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[edit] GRC (Galvanised Rigid Conduit)

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[edit] Aluminium GRC

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[edit] IMC (Intermediate Metal Conduit)

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[edit] Non-Metallic Conduit (PVC)

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[edit] Decorative conduit (wire molding)

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[edit] Fittings

Despite the similarity to pipes used in plumbing, purpose-designed fittings are used to connect all conduit. Unlike water piping, if it is to be watertight, the idea is to keep water out, not in.

[edit] Passive fire protection

Conduit are of relevance to both firestopping, where they become penetrants, and fireproofing, where circuit integrity measures can be applied on the outside to keep the internal cables operational during an accidental fire.

[edit] See also

• Electrical wiring
• Cable tray
• Electrician
• Pipe
• Cable
• Fitting
• Circuit integrity
• Passive fire protection
• Firestop

[edit] External Links

• NEMA: National Electrical Manufacturers Association
• IBEW: International Brotherhood Of Electrical Workers
• NECA: National Electrical Contractors Association