Quality Cable Glands: The Inside Workings

Cheap Cable Glands

Cheap cable glands flooding the market continues to be a major problem for the industry. These products may offer in the short-term greater margins but over time could carry serious risks for cable installations.

In hazardous and harsh environments, for instance, cheaper gland seals may be subject to attacks from airborne pollutants and other environmental elements. If glands fail because of poor quality, an installer’s reputation could be the very least of their worries.

What is also concerning is that some stockists may not even be aware that supplying glands that do not comply with the standard BS EN 62444:2013 (Cable gland for electrical installations) is a punishable offence.

Highest Standards

ETS Cable Components only offers quality cable glands from a range of manufacturers including CMP. We take a look at the inside workings of CMP’s triton glands.

All CMP triton glands are produced from quality brass. Cheaper glands from other stockists are often made from “honey” brass which has been melted down and recast from scrap metal. This means the material is full of impurities which undermines the strength and integrity of the finished product.

Over time this poor material could lead to threads shearing or glands literally falling apart. In some cases the glands may rust after only a few years of use.

1. Inner Seal Assembly

CMP have developed a clever innovative inner sealing system for their triton glands. The design means that the issue of over-tightening inadvertently has been eliminated.

Traditional compression seals have no means of direct control on their application. CMP’s Compensating Displacement Seal System is achieved through a displacement seal which can be independently controlled during installation.

The armour clamping components and the inner sealing ring are separated. The cable gland components can be fully tightened metal-to-metal. This relieves potential excess forces, such as from cold flow, which could then lead to cable bedding damage.

2 and 3. Unique Termination Solution

Involving a unique termination solution, CMP’s armour clamping method ensures a permanent crimping of the cable armour. This creates a low impedance connection that does not suffer from self-loosening.

Secure armour clamping like this also contributes to enhanced levels of electromagnetic compatibility (EMC) performance as well as reliable earth continuity.

4. Enclosed Deluge Seal To Prevent Corrosion

By ensuring that moisture cannot track around the cable gland threads and into the armour termination body, CMP’s integrated ‘O’ ring deluge seal (tested to  DTS 01:91) prevents cable armour corrosion.

The ‘O’ ring is also protected from mechanical damage and harmful UV rays.

5. Cable Gland Body

All CMP glands are from quality brass and not cheaper materials which may fail over time.

6. Clear Identification Markers

All quality glands have clear identification markers and are CE marked. CE marking shows the product has met certain standards. Buyers should have serious concerns if there is no CE marking.

A CE mark, however, does not always guarantee that the product complies – some rogue manufacturers have been known to use CE marking falsely.

7. Outer Seal

With the outer seal, the unique CMP’s Outer Seal Tightening Guide (OSTG) and Load Retention Sealing Ring (LRS) ensures an IP/NEMA rated seal is formed against the cable to the correct degree.

Peace Of Mind

ETS Cable Components offers wide range of quality glands including CMP Brass Explosion Proof (ATEX) glands:

These are compound filled to provide both flameproof and explosion protection.

Quality Cable Glands

Selecting the right quality cable gland in the long-run could help safeguard more than just a business reputation.

To discuss your cable glands requirements for your next project, contact our knowledgeable sales team today: 0044 (0)20 8405 6789 or email: sales@etscablecomponents.com