What Types of Cable Trunking Are Available?
There are several different materials used for cable trunking, with the most popular being:
- PVC: By far the lightest and most affordable material, PVC cable trunking can be made in various thicknesses to suit varying applications, and it resists moisture and corrosion extremely well. It is also non-conductive and possesses a high thermal coefficient of expansion to allow for expansion and contraction – both qualities are clearly useful in conjunction with electric wiring. The downside is that it isn’t particularly tough, but it still works well in most residential settings.
- Steel: Often used where durability is paramount, steel trunking is remarkably strong and yet heavy and inflexible. The price is relatively low, but steel’s weight and its ability to rust make it little used for residential cable trunking.
- Glass Reinforced Polyester: Still cost-effective, glass reinforced polyester is fire retardant and self-extinguishing, making it excellent in hazardous areas. It even boasts anti-corrosive properties.
- Galvanized Rigid Conduit (or RMC): Made using galvanized steel tubing to resist corrosion, this is a thick and tough metal often used in commercial and industrial applications. Recent cost reduction and a spreading awareness of its longevity have seen it used more widely in residential construction, though the price still puts some people off.
Regardless of the cable trunking you use, you’ll chiefly be using it to protect yourself against water-damage, fire, and electric shocks. Before this article comes to an end, we’ll have covered each risk factor, detailing the dangers involved and how cable trunking can make a difference.
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