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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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Catalog - Keys and Caps - FKW3-RED [Sealed 'T' Key]
FKW3-RED The FKW3-RED is supplied with a fitted neoprene seal and flange to prevent ingress into the lock portion.

'T' design provides increased torque on rotary switches.

NOTE: All interlocks with the FS lock portion will accept FK type keys. Lock portions with a Q lock portion require QS keys.

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