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How trapped key interlocking protects workers at HV substations
08 Jun 2015

Interlocking switchgear within HV substations ensures that personnel operate equipment safely, according to the correct procedures. Using a well-designed trapped key interlocking scheme will prevent personnel accessing potentially dangerous areas before the switchgear system has been put into a safe condition. A good interlocking scheme will also ensure that the system functions correctly, so that […]
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CastellInterlocksCatalog

Catalog - Valve Interlocks
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Interlock for Ball, Plug and Butterfly Valves - Up to 2"
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