Roller Door Feed 3 phase (RCD?)

[grandfortune]

HI all,

changing a board in a commercial warehouse and they need a 16amp feed to a new roller door, there is an armored there that will do it and I'm fitting a new shnieder board with RCBO's, am i best fitting a 3 phase MCB in the board or a RCD commando by the door?

Cheers
Grand

 

[telectrix]

why fit an RCD?

 

[grandfortune]

sorry I'm from the domestic sector, just assumed all circuits need it inc fixed equipment, am i being too over-cautious?, Ive put sockets and lighting , heaters etc on rcbo's

 

[telectrix]

RCD protection required on sockets. not required on lighting or fixed equipment unless other factors mandate their use..

 

[grandfortune]

Ah thank you.

 

[littlespark]

Even in domestic it’s not a case of stick an rcd on everything.

sockets, lighting, everything in bathrooms.
Every other circuit it depends on wiring method. (Buried under 50mm etc etc)

 

[Darkwood]

I understand commercial and industrial may seem a very different electrical environment which to some degree they can be but they are still covered by the same regulations that we use on domestic, running an SWA in domestic to a fixed equipment usually wouldn't warrant RCD protection unless the manufacturers guidance stipulated it.

 

[westward10]

I assume the shutter is hard wired and not on a socket which many are now.

 

[grandfortune]

Even in domestic it’s not a case of stick an rcd on everything.

sockets, lighting, everything in bathrooms.
Every other circuit it depends on wiring method. (Buried under 50mm etc etc)

I assume the shutter is hard wired and not on a socket which many are now.

They want a16amp commando socket


Regarding the SWA in domestic or any other equipment I would always put it on an RCD it's harder not to these days but I see what you mean


Thanks forthe replys

 

[westward10]

It will need additional protection then. I avoid rcds wherever possible.

 

[grandfortune]

It will need additional protection then. I avoid rcds wherever possible.

SWA to the commando , then I'll leave the plug plugged in for them , will that suffice ? Fed from 16ap 3 phase MCB

 

[westward10]

Needs rcd protection.

 

[grandfortune]

So should we put it in the board or one in the commando socket ??

Or should I just leave them a adaptable box there and then they have to sort it , rang the door bloke to see what amperage he wanted and he said 16amp three phase commando socket .

 

[westward10]

I would personally put it at the board as some of these sockets are at high level.

 

[snowhead]

The RCD needs to be at the door, then when the Door maintainer trips it, it can easilly be reset, instead of them having to call out someone who knows where it's fed from.

All of the new door installations and any with significant upgrades that I came across in the last ten years or so had to be on Commando's sited next to the Door control box.
It's either a change in a B.S or since the introduction of electronic controllers.

 

[grandfortune]

Ah ok , was going to fit it high up , but I assume it's switch level then . My bad thinking of small garage roller doors , see told you I was domestic ,lol

 

[westward10]

You need to ask the installer as I said many of these are now at high level by the shutter mechanism. If it is high level I would not be fitting an rcd at the socket position.

 

[telectrix]

high level commando socket dedicated to the door. no RCD required. maybe a RA to cover your arse.

 

[grandfortune]

Right ill feed a commando socket and RA stating its upto them if they want it RCDing, the door wont be in for a while anyway so the feed will be there for them.

thanks guys and gals

 

[telectrix]

is the door going to be 1 phase or 3 phase. ? the 3 phase ones I'vecome across need a 5 pin socket.so a 5 core SWA as well.