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Hi looking for some advice, basically have an upfront 100mA RCD at 1 DB that feeds another DB with no RCD just MCBs in 2nd DB, now on schedule of tests it says over current which at 2nd DB which will be my 100mA RCD and Associated RCD but where Operating current for each circuit is would you put the 100mA in there too?
 
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Risteard

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An RCCB is not an overcurrent protective device. It offers residual current protection (earth leakage) but does not protect against overcurrent. The type of RCD which has integral overcurrent protection is an RCBO.
 

Pete999

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An RCCB is not an overcurrent protective device. It offers residual current protection (earth leakage) but does not protect against overcurrent. The type of RCD which has integral overcurrent protection is an RCBO.
What Risteard said, what's with this 5 words message?
 
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  • #4
An RCCB is not an overcurrent protective device. It offers residual current protection (earth leakage) but does not protect against overcurrent. The type of RCD which has integral overcurrent protection is an RCBO.
Sorry meant to say 100ma RCD and 80A MCB
 

telectrix

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your overcurrent protection for DB2 is the 80A MCB in DB1. for each circuit in DB2, the MCB for the circuit is the OCPD for that circuit alone. bet yo have a few C2's for no 30mA RCD/s
 
  • Thread Starter Thread Starter
  • #7
your overcurrent protection for DB2 is the 80A MCB in DB1. for each circuit in DB2, the MCB for the circuit is the OCPD for that circuit alone. bet yo have a few C2's for no 30mA RCD/s
Yes then the associated RCD would be the 100mA RCD, what I mean is none of the circuits have RCD so could you put the 100mA in Operating mA for all circuits? It’s failed anyway but person at work says yes but I’m not sure as in a way they still are governed by that upfront RCD
 

telectrix

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see what you mean. enter the 100mA RCD as 100mA and the time/s in the appropriate column.
 
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