How do you test RCBO's Same as RCD's

[Bul]

May be a silly question but are rcbo's tested the same way as RCD's?

 

[buzzlightyear]

what do you think !

 

[buzzlightyear]

you treat it has MCB but not MCB but RCBO.

 

[The Ghost]

Yes same way.

 

[Bul]

Yes same way.

Many thanks, I've just never thought about it. Should test sheets then say RCD / RCBO tests?

 

[The Ghost]

Not really an RCBO is an RCD with overcurrent protection.

 

[buzzlightyear]

Many thanks, I've just never thought about it. Should test sheets then say RCD / RCBO tests?

which test sheets.

 

[Gavin John Hyde]

If you read the manufacturers leaflet that comes with them some require you to remove the earth fly lead prior to testing. i do it as a matter of course and have not actually checked to see if it affects results. I know with some it can affect loop impedance tests.
Have seen many a CU with them cut off mind!

 

[Midwest]

you treat it has MCB but not MCB but RCBO.

My test sheets will allow you to pick and choose whatever device your using (not aiming this at you buzz).

 

[Octopus]

May be a silly question but are rcbo's tested the same way as RCD's?

Why do you ask?

 

[Midwest]

If you read the manufacturers leaflet that comes with them some require you to remove the earth fly lead prior to testing. i do it as a matter of course and have not actually checked to see if it affects results. I know with some it can affect loop impedance tests.
Have seen many a CU with them cut off mind!

The 'function earth lead', does just that I believe. Cut it orrffh or not connect it might cause some functional problems. The earth & neutral fly leads have to be disconnected, if the manufactures state this, during IR testing, as far as I'm aware?

 

[PEG]

Obviously,MI should be adhered to,if you are writing down the test and result,but you could not damage any RCBO,using standard,IR test gear.

 

[NDG Elecs]

On the schedule of test results simply put 6100* instead of 60898/3036/etc etc. Obviously the x1 x5 results are on the far right hand side..

*Bit drunk and can't recall whether it's 009 or 008!

 

[buzzlightyear]

*Bit drunk and can't recall whether it's 009 or 008

yep , or is it 0010 nuwkie browns.

 

[Bul]

Why do you ask?

I was just thinking about a CU that only has rcbo's in it. Would each circuit be tested as an rcd. I've just never came across it and wanted to put it out for discussion.