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Arc Fault Detection Device without rcd

Newfutile

one of our contractors has installed several Hagar ARM932U Arc Fault Detection Device.

After many enquires Hagar Technical confirm its only a MCB with AFDD.

The contractors insist its an rcbo as well , i put 550mA on an (RCD) Residual Current Device test  it did not trip.

this had made me wonder if others have come across such devices and where they are designed to be installed to?

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  • 0

    If the contractor installed them, and intimated they were RCBO's, then what did their verification paperwork say and indicate on their protection device test results?

    I presume if they have recorded disconnection/trip times on their paperwork then those results were "False"?

    Cheeers GTB 

  • 0 in reply to GTB

    they did provide an EIC at my request ,this had the trip time as 11mS .

    i can only think these must be fabricated results.

  • 0 in reply to Newfutile

    ahhhhh. This is the true effect of demanding paperwork from installers instead of someone else inspecting. In the old days we knew it had not been tested. Now we are far less sure.

    (a comment to be read with a slightly cynical grin)

    Mike.

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  • 0 in reply to Newfutile

    ahhhhh. This is the true effect of demanding paperwork from installers instead of someone else inspecting. In the old days we knew it had not been tested. Now we are far less sure.

    (a comment to be read with a slightly cynical grin)

    Mike.

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