Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Discuss Testing of an RFC linked to a UPS in the Electrical Forum area at ElectrciansForums.co.uk.

Thread Status:
Not open for further replies.
Please make sure you checkout our forum sponsors, many do discounts for members and, they keep the forum free to use.
  1. polo1
    Offline

    polo1 Electrician's Arms

    Location:
    Glasgow
    Business Name:
    GW Electrical & Security
    Hi all,
    bit of advice please - as the title, I have been asked to test a RFC which is served by a UPS. It's in an alarm receiving center. Any advice on what I need to watch out for, testing protocols etc? Not workred on this kind of set up before.

    Regards.
     
  2. Golden_Boy
    Offline

    Golden_Boy Electrician's Arms

    Location:
    County Durham
    If the rfc is fed by a UPS then in practice it is not part of the fixed wiring..As the ups output will not be connected to the input circuit in any way.

    As it is NOT connected to the input I would think that the RFC should be treated as if it where being fed from an isolation transformer and treated accordingly !!?

    I may be wrong though..................
     
  3. Knobhead
    Offline

    Knobhead Guest

    Sounds reasonable to me. Totally isolated from the main system.

    You say a data centre, so you need to start looking at the implications of an “isolated” earth returns within your “isolated” system.
     
  4. Golden_Boy
    Offline

    Golden_Boy Electrician's Arms

    Location:
    County Durham
    The whole system may be "earth free" of course!!!
     
  5. polo1
    Offline

    polo1 Electrician's Arms

    Location:
    Glasgow
    Business Name:
    GW Electrical & Security
    Thanks guys. I'll also reseach UPS generaly to see what's on the web.

    Regards.
     
  6. IQ Electrical
    Offline

    IQ Electrical Electrician's Arms


    Carry out your usual tests with the UPS in bypass mode.

    When the inverter is in operation, the UPS itself will be factory set to clear any fault downstream, usually allowing a fault current to flow for around 100mS before automatically shutting down to protect the inverter.
     
Loading...
Similar Threads - Testing linked Forum Date
AM2 Testing - 16a Socket Outlet Electrical Course Trainees Only Monday at 8:12 PM
Insulation Resistance testing method Electrical Forum Jan 15, 2019
Thread Status:
Not open for further replies.

Share This Page

Electricians Directory Post a Domestic Job Post a Commercial Job