Isolator same with Disconneting Switch in The US

[adindas]

Is teh funstion of Isolator in the UK same with Disconnecting Switch in the US ?.


Also why do we need Spur Unit for Exhaust Fan ?

Where else do we need to install spur unit ?

Cheer
Adindas

 

[andy]

am not from america so not familiar with their terminology, altho i would think disconnection switch would be an isolator. as for FCU's, there used to protect a load what is permanently connected, i.e washer, fan etc. also used to protect extra sockets extended from a ring

 

[adindas]

Dear Andrew

I thank you very much for your answer. I am still confused about the isolator. I read that isolator is mainly intended to protect the repairman while they are working to fix the item such as Cealing Fan, ELectric Boiler, etc. So that the isolator should ensure that it totally isolates the circuit. It should disconnect not only Phase (Live) but also Neutral and Leakage current. So they must have two pole to disconnet phase and Neutral.

Is anywhere could I find the circuit diagram of Isolator.

I thank you very much again in advance for yur answer.

Cheers
Adindas

 

[notb665]

This is what you want:

http://www.screwfix.com/app/sfd/cat/pro.jsp?ts=86796&id=13479

As for a circuit diagram, these things use the fuse (rating depends on appliance) on the live side which will (obviously) burn out if there is too much current, and the switch switches the live and neutral on/off but leaves the Earth intact. Easy!

Hope this helps.

 

[plugwash]

switch: turns equipment on and off
isolator: isolates for test or repair perposes (not nessacerally capable of safely disconnecting on load)
isolating switch:does both of the above

when most people SAY isolator they MEAN isolating switch.

 

[adindas]

Thanks for all who provide me the useful answer. Now I understand this thing.

Thanks a lot
Adindas