Arseydee or elceebee???

Talk Electrician Forum

Help Support Talk Electrician Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
after looking at all the bits, i decided it was probably best not to try and put it back together. but if you really want to get it together and working again, ill post it to you

 
Thanks!

Figured it was an RCD but wanted to make sure the internals weren't different as I want in & out as quick as possible.

I am still hungover from the weekend and got mixed up with VOLCB's & the old 4293 RCD's!  :Blushing


I'll take this apart some time out of interest:

SAM_7469_zpse4f99923.jpg.a08b98e016bc9ace33b8cad02db00235.jpg


 
after looking at all the bits, i decided it was probably best not to try and put it back together. but if you really want to get it together and working again, ill post it to you
No no  thats alright Andy .... you hang on to them ...........one day in the far distant future  you could be travelling on a Starship when the engine stops and the Scotts engineer will burst onto the flight deck shouting " We're all doomed  Captain the coils have failed in that old ELCB ....I did warn Starfleet but they wouldn't listen ,  we'll never get back to Earth now ,   those things are unknown in this part of the universe"    

And then you realise , your moment of fame  has come  .  " Pardon me Captain but I think I can help here ....for I am The Canny Geordie."  You swagger over to your tool kit.....  you open your tat box....you reach inside for the coils you have saved for just this moment  .....and they're not there !!!!!     Steptoe has flogged all the copper to the Klingons at the last stopover!!!!    

 
OK guys, think about this.

A residual current circuit breaker, and an earth leakage circuit breaker both do the same thing.

They detect any residual current to earth, or any earth leakage current.

Anything marked with a residual/actuating current rating is what we now call an RCD.

This would obviously normally be in mA.

Of you look at a VOELB then there will be no residual (actuating) current rating.

However, both a VOELB & an RCD detect current flow to earth, an RCD detects it directly by current flow, a VOLEB, detects the current flow by the rise in voltage.

Once is better than the other...

 
OK guys, think about this.

A residual current circuit breaker, and an earth leakage circuit breaker both do the same thing.

They detect any residual current to earth, or any earth leakage current.

Anything marked with a residual/actuating current rating is what we now call an RCD.

This would obviously normally be in mA.

Of you look at a VOELB then there will be no residual (actuating) current rating.

However, both a VOELB & an RCD detect current flow to earth, an RCD detects it directly by current flow, a VOLEB, detects the current flow by the rise in voltage.

Once is better than the other...


So....if parallel paths can make the VOELB potentially dangerous by not guaranteeing it reaches it's tripping voltage, hypothetically could you reduce the parallel paths in an installation to make a VOELB viable now?

Just thinking out loud here.....

Would they be safer on a TT i.e with no incoming earth? Plastic pipework would help.....

 
Last edited by a moderator:
So....if parallel paths can make the VOELB potentially dangerous by not guaranteeing it reaches it's tripping voltage, hypothetically could you reduce the parallel paths in an installation to make a VOELB viable now?

Just thinking out loud here.....

Would they be safer on a TT i.e with no incoming earth? Plastic pipework would help.....


I think that there is a possibility of them re-appearing on electric vehicle charge points.

 
So....if parallel paths can make the VOELB potentially dangerous by not guaranteeing it reaches it's tripping voltage, hypothetically could you reduce the parallel paths in an installation to make a VOELB viable now?

Just thinking out loud here.....

Would they be safer on a TT i.e with no incoming earth? Plastic pipework would help.....


No thanks, you can try it if you want.

As an apprentice we spent several Saturday O/T shifts removing VOELCB’s and fitting RCCD’s in our estate houses after a near fatality caused by one going open circuit. Ironically it was an electricians wife that ended up in hospital.

 
Top