Fortress Simplifies Switchgear Interlocking

Fortress Interlocks Ltd 22/12/2010

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A specialist in switchgear interlocking, Fortress Interlocks has been protecting personnel and plant in distribution systems worldwide for decades, ensuring that earth/ground switches cannot be closed on live busbars, and isolation procedures are strictly adhered to. Fortress recognises that creating a simple interlocking scheme is critical; no one wants to work with a system that is too complex to follow, operators will simply look for shortcuts.

In many power distribution projects key interlocks are often left to the last minute to source and fit which can result in confusion on-site during final commissioning. Larger projects also have the added complication of multiple switchgear suppliers who, unless key interlocks are specified, often supply their standard product which can be awkward and unsuitable. Involving Fortress in the initial stages of designing the interlocking system saves time and money via custom built key interlock systems that are safe and, in many cases, very simple.

Fortress translates project switching requirements into physical hardware that ensures a defined sequence of events, working closely with manufacturers of switchgear to ensure the correct products are utilised and systems can be integrated on-site.

Fortress has a unique key coding capability that ensures locks and keys can be clearly identified with their associated equipment. By mastering and part mastering, Fortress’ key coding actually helps reduce the number of keys and simplifies the system. Key coding is managed by Fortress to guarantee that there are not two keys the same on-site, which can compromise safety; unique key coding also allows Fortress to customise a solution for all applications.

For more than 50 years Fortress has been at the forefront of switchgear interlocking and, with the addition of the new SL mini lock, offers a complete range of trapped key interlocks to suit all switchgear. Its interlocks can be found enforcing the correct sequential operation of switchgear all over the world, from 132kV switchyards in northern Scotland to medium voltage distribution boards in Antarctica, from underground substations in Australian coal mines to electrostatic precipitators in Chile.

For more information contact;

Fortress Interlocks Ltd, 2 Inverclyde Drive
Wolverhampton. Tel: +44 (0)1902 349 000 Fax: +44 (0)1902 349 090
E-mail : sales@fortressinterlocks.com Web: www.fortressinterlocks.com