BS7909 form completion

[ethixman]

Hi,

Please excuse my ignorance but I am looking at the completion cert for BS7909 and wanted to know what section 10 refers to " Proctective devices in the ISU if present" What is the ISU

Thanks

 

[goldie]

Think this is refering to the temporary dist board

 

[telectrix]

agree. maybe *** supply unit?

 

[Guest123]

QUOTE....*Intake Switch Unit (ISU) as defined in BS 7909. Some venues have power pick up points arranged with connectors, means of isolation and protective devices so that a separate ISU may not required.....END QUOTE.


Source - BBC safety files.