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Featured Products

A selection of our featured products

New Products

  • CEAG nLLK 15 LED Linear Ex-Light Fitting
    The CEAG nLLK 15 LED Zone 2/22 Linear Ex-Light Fitting for Aura UltiLED long life LED tubes combines latest lighting engineering with the requirements of harsh and hazardous environments.
  • Hawke PL511 Enclosure
    New Hawke PL511 Glass Reinforced Plastic Enclosure available from Cable Systems - Sliced Design, Sliced Cost & Sliced Installation Time

Recent News

The latest news from Cable Systems

  • Zone 1 equipment protects and prevents gas risks

    Zone 1 equipment plays an important role in protecting hazardous areas against occasional risks, for example due to the accidental or unexpected release of a cloud of gas. While Zone 0 equipment is used in the presence of ongoing hazards and Zone 2 equipment is used where any release is likely to involve only low concentrations of gas for a short period of time, Zone 1 equipment arguably faces the toughest challenge. It must be able to cope with relatively high concentrations of hazardous materials, which are only occasionally released, and should act to minimise the impact of any such leak. An article in the January 2017 quality assurance journal Calitatea looks at how modern software makes it easier to calculate the scale of a combustible gas leak - and how hazardous area equipment should tackle it. In particular, Zone 1 equipment should act to contain any leak while preventing sources of ignition that could spark a catastrophic explosion.This doesn't just mean reducing the amount of vapour that leaks; it also includes reducing the frequency of leaks, and the duration over which each incident lasts. This doesn't just mean reducing the amount of vapour that leaks; it also includes reducing the frequency of leaks, and the duration over which each incident lasts. Together, these fundamental protections allow Zone 1 equipment to create a physical barrier, containing any leaks and ideally preventing them from occurring in the first place, and reducing the size and impact of the resultant hazardous areas.

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  • Ships demand special attention on Zone 0/1/2 hazardous area equipment

    Zone 0/1/2 hazardous area equipment is essential to safeguard hazardous environments on land, but especially so on the confined space of a maritime vessel. Boleslaw Dudojc of the Gdynia Maritime University in Poland writes in the university's scientific journal, ZN AMG, of the many sources of risk at sea. These range from the vessel's own fuel, to substances required for maintaining it, to the cargo it may be transporting. Materials that are usually not flammable can pose a threat, for example if a solid is present as an airborne dust in the right quantities, or if a fluid leaks to create a cloud of mist. Zone 0, 1 and 2 hazardous area equipment for gas, and the equivalent Zone 20, 21 and 22 for dust, offers protection for continuously present risks, high likelihood risks and relatively unlikely or short-lived risks respectively. The author urges that as well as specifying the correct hazardous area equipment, crew members must be adequately trained in how to use it correctly, including preventing explosions caused by electrical equipment. "Safety associated with it depends not only on the proper operation of devices installed in the potentially explosive areas, but also on their proper maintenance," the paper concludes.

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