Definition And Uses Of Conduit

Basics of conduit

By textbook definition, conduit is a part of a closed wiring system for cables in electrical installations, allowing them to be drawn in or replaced but not inserted laterally.

When wiring any premise, the type of wiring needs to be considered – some has sheath coating, requiring only to be stapled to wall studs with joints to secure it. These still hold some danger, however. To protect the wires from dangers of contact or damage, they can be placed in metal conduit – helping wires be safely pulled between DBs. The are different strengths of conduit ranging from weak and mild to almost uncrushable. Conduit can be placed inside walls to stay hidden or on the outside for ease of access.

Types of conduit include:

• PVC – Often used underground or in wet locations, they are easier and cheaper to implement and attach to each other easily. This is most common.
• Flexible Metal (Copex) – For tight bends difficult for normal conduit like PVC.
• EMT – Lightweight and easy to bend.
• IMC – Thicker conduit galvanised for outdoor installations.
• Rigid Metal  -Thickest and heaviest conduit, mainly used underground or in extreme conditions.

Conduit helps keep your wires safe and contained and is necessary for every installation. AEL can promise a tidy and safe installation.

Glossary

Sheath Coating: This offers mechanical protection to copper cables from heavy pressure or contact.

DB: A distribution board or consumer unit supplies electricity to circuits while supplying a circuit breaker for each.

EMT: Electrical Metallic Tubing is lightweight and can be bent easily with the right tool.

IMC: Intermediate Metal Conduit is rigid steel designed for external conditions.

For more information on our Fixed Wire Testing services call us on 01302 746 295.