RCD 0.0s??

L

Loopytunes

• Jun 23, 2014

• #1

Hi all,

Just back from an EICR where one of the RCDS was testing out at 0.0ms for the 1/2, 1 and 5 tests both ways, not had this problem before, can anyone shed any light?

Thanks in advance,

Loops

 

Pete999

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• Jun 23, 2014

• #2

A bit more info required loopytunes, type, size, how were you testing etc

 

telectrix

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• Jun 23, 2014

• #3

te terminals with no load connected. if still duff readings, then it's a duff RCD

 

OP

G

Guest77

• Jun 23, 2014

• #4

Was the correct milliamperage scale tested? is the tester calibrated and functioning correctly? two questions to start.

 

GMES

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• Jun 23, 2014

• #5

Loopytunes said:

Hi all,

Just back from an EICR where one of the RCDS was testing out at 0.0ms for the 1/2, 1 and 5 tests both ways, not had this problem before, can anyone shed any light?

Thanks in advance,

Loops

Click to expand...

Here you go mate

 

yellowvanman

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• Jun 23, 2014

• #6

Loopytunes said:

Hi all,

Just back from an EICR where one of the RCDS was testing out at 0.0ms for the 1/2, 1 and 5 tests both ways, not had this problem before, can anyone shed any light?

Thanks in advance,

Loops

Click to expand...

Not had it for all 6 measurements, when I have had it on isolated occassions I have assumed the trip time was quicker than the tester could actually measure (I assume your using a Fluke)

 

Sintra

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• Jun 23, 2014

• #7

What type of RCD is it. Is your meter set for that type. Have you ramped it?

 

shanky887614

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• Jun 23, 2014

• #8

Are you sure you have got it on the right rcd setting?

If you did the test on say 500/1000ma I wouldn't be surprised if you got a reading extremely low

 

OP

L

Loopytunes

• Jun 23, 2014

• #9

It's a 30mA RCD tested using a Fluke 1651b which has no ramp test, tested using correct settings, wired up and isolated same results, was thinking duff RCD but wanted to check to see if this has happened to anyone before?

 

OP

L

Loopytunes

• Jun 23, 2014

• #10

And yes tester callibrated

 

OP

D

davesparks

• Jun 24, 2014

• #11

If it tripped at 1/2 it's rated current then it is oversensitive and therefore needs replacing.

 

Sintra

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• Jun 24, 2014

• #12

The op still hasn't stated what TYPE of RCD it is.

 

OP

L

Loopytunes

• Jun 24, 2014

• #13

Apologies, it is a Contactum 63A 30mA DP RCD in a domestic property -

Associated standards:
BS EN 61008


Rated voltage:
220-250V



Rated current:
63A


Rated frequency:
50-60Hz


Switched poles :
2 pole


Minimum switch contact gap :
4 mm






Ambient operating temperature:
-5 to 40°C (24hour average not exceeding 25°C)


Maximum installation altitude :
2000m

 

OP

L

Loopytunes

• Jun 24, 2014

• #14

And it is NOT installed over the maximum installation altitude of 2000m.......

 

Sintra

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• Jun 24, 2014

• #15

So if it's type B have you got your tester set to DC. Has it got the type B symbol below.

 

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