Cable conduits

Properties of protective tubes

Whether it is heat-resistant, subject to particular climactic stress or water-resistant, the cable protection is available in different materials such as braided sleeving, plastic conduits or liquid-tight protective metal conduits, which withstand temperatures from -60°C to +700°C and have a tightness that applies up to the protection class IP69 K. Depending on the type, protective tubes for cables have the following technical properties:

• solvent-resistant
• liquid-tight
• UV-resistant
• flame-retardant

Areas of application of electrical conduits

Electrical conduits are used in many industries and trades. For example, reliable usein industry, automation, vehicle manufacturing, shipbuilding, mechanical and plant engineering, the steel industry, foundries, the chemical industry, refineries, transport technology, mining, glass factories, electrical installations or in rail vehicles is guaranteed.

Different designs for the versatile use of an electrical conduit

One of the most used protective tubes is corrugated tubing . The corrugated tubes made of polyamide are corrugated on the inside as well as on the outside and are versatile in their use. Other protective tubes include:

• PVC or PUR spiral cable protection
• Liquid-tight electrical conduits with a fixed PVC or PUR sheath and an internal spring steel wire coil.
• The all-plastic conduit Airflex K made of PVC is smooth on the inside.
• The protective metal conduits are available with copper braiding or steel wire braiding as well as liquid-tight with the sheath materials PUR, PVC, PA and silicone.
• The non-combustible fire protection conduit FLEXAhightemp with a fireblocker coating serves as a cover for cables and wires.
• The braided sleeving is available made of PET or polyamide and with copper or steel braiding. They serve as shielding and as collectors and can have different nominal widths according to their size dipped and drawn.  

FAQs - frequently asked questions about electrical conduits

What are important properties of electrical conduits?
Electrical conduits protect cables and wires from mechanical and chemical environmental influences. However, they also help when it comes to bundling and guiding cables. Electrical conduits are generally solvent-resistant, liquid-tight, UV-resistant and flame-retardant.

What diameters do the electrical conduits have?
Electrical conduits have a wide range of diameters: we have everything from “small” (10 mm) to “jumbo” conduits (106 mm).

What kind of materials are used for electrical conduits and what are they suitable for?
Simple electrical conduits, such as our PA corrugated tubes, are made of polyamide (PA) or polypropylene (PP). However, there are also protective tubes made of plastic, metal, and stainless steel as well as braided sleeving made of galvanised steel wire or tin-plated copper wire. Some electrical conduits offer an additional coating thanks to a PUR or PVC sheath.

What colours are available for electrical conduits?
Protective tubes are available in different colours. The most common colours are surely black and grey. However, there are also electrical conduits with a green or blue sheath. The corrugated tubing is also available in orange. The differences in colour have no significance.

What should be considered when making the selection?
First of all, it is necessary to decide where the conduit is to be used and what mechanical or chemical demands it has to withstand. The cable protection is finally selected on the basis of this key data and the appropriate size (depending on the cable and wire).

What approvals do the protective tubes have?
Depending on the type of electrical conduit, &each material has various properties. Therefore, the approvals differ.