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Control measure

Isolation of uninterruptible power supply systems or standby generators

Control measure knowledge

If an uninterruptible power supply system is providing back-up to a whole building, there should be a cut-off point, usually located near to the isolation point for the mains power. 

If a standby generator is providing back-up to the facility, it will need to be isolated to prevent the automatic re-energising of power supplies. 

Strategic actions

Fire and rescue services should:
  • Ensure that Site-Specific Risk Information (SSRI) includes details of uninterruptible power supply systems or standby generators, such as emergency cut-off points or switches 

  • Consider making electrical gloves available to personnel for use at incidents involving live electricity supply  

Tactical actions

Incident commanders should:
  • Consider isolating the uninterruptible power supply system or standby generator, taking into account the impact on any critical systems

  • Consider the appropriate use of electrical gloves, in line with service procedures