Pratley, a company with expertise in polymer science, has developed and produced the world’s safest cable gland for use in highly hazardous environments. The gland is available in a variety of sizes to fit commonly used cables in mining and other hazardous environments. These glands have been tested under stringent conditions and are fully compliant with Europe’s strict ISO standards.
These glands, which are used to anchor the cable securely to an electrical apparatus, are explosion and flameproof. They provide safety to human life in hazardous locations such as underground in coal mines. Strict international testing standards (IEC 60079 series) specify pernicious performance requirements for the certification of such glands. These requirements are so demanding that, up until now, no corrosion-resistant flameproof compression gland on the world market has been certified without some attendant requirements or so-called “special conditions” of use. These special conditions usually call for additional external clamps and/or special tools to ensure reliable sealing.
According to the company’s marketing director, Eldon Kruger, calling for such special conditions adds cost and could put innocent people at risk, should the external clamp be either not fitted or be non-compliant.
Pratley’s new, fully-certified Ex d/e corrosion-resistant Enviro Compression Gland requires no special conditions and can be fitted by anyone with the kind of tools electricians usually carry. This makes this cable gland a world-first and the world’s safest.
The company says these clamps are suitable for use anywhere: from Group I locations in underground fiery mines, and Ex d flameproof environments, through to the coldest and hottest climates on the planet, the gland has been certified for temperatures from -20°C to +95°C. It’s also IP66/68 certified and can withstand a continuous depth of 350 m underwater.
This range of cable glands is made from high-tensile brass components encapsulated in a tough engineering plastic, which will not crack when tightening. This, combined with Pratley’s unique Taper-Tech® internal seal design, ensures safe installation in corrosive environments, without damaging the cable or compromising seal longevity due to cable cold-flow. The cable gland is suitable for installation in equipment Groups I, II, and III, and Zones 1, 2, 20, 21, and 22 hazardous locations. It’s also completely oil- and grease-resistant.
Contact Pratley, Tel 011 955-2190, firstname.lastname@example.org