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Cable Glands – Convenience and Connectivity

6/8/2015 10:36:16 AM | by Anonymous

Cable Glands

Cable glands are also known as cable fitting or cable connector. These glands are circular in shape that serves as mechanical cable entry devices intended to attach and secure the cable to equipment such as generators, pumps, enclosures and motors. Cable glands can be made from metallic or non-metallic materials. Cable glands are the common substitute for more costly conduit and are utilized worldwide.

There are a number of materials that can be utilized for manufacturing a cable gland – the steel wire glands, the plastic cable glands, the aluminum sockets and the brass cable glands. Each of these sockets has its unique applications and one must choose the kind that is in line with the specific purpose that you sought the cable gland for. Cable glands come in various colors, sizes and shapes to make the most useful part for any requirement. Along with the broad range of sizes, these cable glands are available in three various thread styles to suit all kinds of machineries; PG, NPT and Metric. The NPT wire gland consists of Nylon 66 that is UL approved, with colors such as black and silver gray, typically utilized for outdoor and indoor applications. This type of wire gland is designed to suit a broad array of clamping ranges in order to accommodate various types of cables. Distinctively, these parts are UL94-2 rated that shows its flammability level. In this specific instance, these parts are self extinguishing after a specific period of time which means if, by any chance, a fire takes place near these components it will self extinguish before causing any further damage to the machinery. This is very significant in manufacturing areas where the odds of this occurring are very possible. These components have optimal temperature ranges as well. Most can handle -40°F to 221°F. Besides providing connectivity, it also provides a water and dust-proof setting for the cable to function properly.

Also, there is a right angled cable gland that is made up of the same material like the NPT wire gland, with the difference where the angle is particularly intended to allow smooth connectivity and passing of the cable for certain circumstances.

The category of the seal on the cable gland is also being taken into consideration when choosing the appropriate gland. There are five various kinds of sealing method applied that greatly affect the inner bedding seal of the cable. These are: Displacement Seal, Compression Seal, Diaphragm Seal, Compound Barrier Seal and Compensating Displacement Seal (CDS) System. The variation among these is the purpose of the cable seal ring.

Below are some of the major benefits of cable glands:

• Firestop, explosion proof, electromagnetic interference, RFI shielding, and pre-terminated cable accommodation
• Environmental protection from dust and moisture from the enclosure
• In Hazardous areas- maintain a level of protection on the attached equipment
• Provide a holding force to limit pull out resistance

There are numerous dimensional features which one can possibly work out to get the best fit of cable gland for your needs and preferences, including the thread size, color, size of the mounting hole and the variable clamping capability which could make it simpler for you to decide correctly for your requirements.

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