Steel Conduit for Secure & Reliable Cable Management
Steel conduit is rigid galvanised tubing that cables are drawn through, giving strong mechanical protection for exposed wiring in industrial, commercial and agricultural buildings. We stock 20mm and 25mm galvanised steel conduit in 3 metre lengths, with Conlok galvanised boxes, bends, couplers and female adaptors, Unicrimp terminal boxes and brass male bushes.
Deligo PVC coated flexible conduit is available for final connections. Trade pricing is available on account, and in-stock items ordered before 5pm on a weekday are delivered next working day across NI and ROI.
How to choose and install steel conduit
Galvanised steel conduit is chosen where cables need protection from impact, crushing and rodents, or where a robust, long-lasting finish is expected, such as warehouses, plant rooms, farms and car parks.
Building a steel conduit system
- Conduit lengths – 20mm and 25mm galvanised steel in 3m lengths.
- Circular boxes – terminal (1 way), through, angle, tee, U and intersection boxes for changes of direction and draw-in points.
- Bends and inspection elbows – ready-made bends for neat corners, with inspection elbows giving access.
- Couplers, female adaptors and brass male bushes – for joining lengths and connecting to enclosures.
Galvanised vs other finishes
Galvanised conduit is zinc coated for corrosion resistance and suits damp and outdoor locations. Black enamel conduit is used for dry indoor areas. In very corrosive environments, check whether a different material or coating is specified.
Installation tips
Cut conduit square, ream the inside to remove burrs and thread with the correct die, then protect threads with zinc-rich paint. Fit bushes at every box entry so cables cannot chafe on sharp edges. Provide draw-in boxes at sensible intervals and limit the number of bends between them. Calculate capacity with cable and conduit factors from published guidance. Where steel conduit is used as a protective conductor, joints must be tight and continuous, and many installers run a separate CPC as well; confirm with current wiring regulations (BS 7671).
For heavy routes, mount conduit on strut and accessories with suitable clips. For bending conduit on site, see our conduit bending machine, and for final connections to plant, add flexible conduit.
Meteor Electrical has supplied industrial and commercial contractors for over 40 years from Cookstown. Free delivery applies over £30 / €35 ex VAT, and credit accounts are available subject to approval.
FAQ's
- What is Metal Cable Conduit used for?
- Where can I use Metal Cable Conduit?
- Why would Metal Cable Conduit used?
- Can Metal Cable Conduit rust?
- What are the Galvanised Steel Conduit sizes available?
- What are the benefits of using Metal Cable Conduit?
- Can I install Metal Cable Conduit inside my walls?
- Is Metal Cable Conduit recyclable?
- Can steel conduit be used as the circuit protective conductor?
- What is the difference between galvanised and black enamel conduit?
- How do I thread steel conduit?