10 hours ago, StickyMicky said:

 

Instead of one mains feed from your Consumer Unit (fuse box) controlled by on MCB (fuse) you run two cables, one from each of two MCBs.  This provides a degree of redundancy on the mains supply so if one MCB trips for some reason or one cable fails for any reason you have another backing it up.  It removes one single point of failure element in the supply although - as I mentioned earlier - it is most unlikely you could arrange an addition CU on a separate phase from the street cable.  It can be done but it's expen$$$ive!

 

I thought that's what you meant but I reckon its a definite no, and besides, a type B 20 amp circuit breaker needs 60-100amps of instantaneous current to trip so unless you have a dead short somewhere its gonna be pretty much rock steady.

 

What is more likely is an RCD trip so it would be more beneficial to make sure all circuits are on RCBOs or at least have the network stuff on its own RCD or RCBO so nothing in the house can effect it.

 

I think a UPS is a good shout

 

 

7 minutes ago, SuperbTWM said:

What is more likely is an RCD trip so it would be more beneficial to make sure all circuits are on RCBOs or at least have the network stuff on its own RCD or RCBO so nothing in the house can effect it.

Second having the network stuff on a separate RCD - so that if e.g. a washing machine goes ape and trips an RCD it won't power down the network. Plus the leakage current from multiple IT devices can be enough to trip an RCD when combined with normal domestic usage devices leading to multiple unwanted trips.

 

16th, 17th and 18th Edition CUs usually have 2 RCD 'banks' of multiple MCBs plus one MCB that isn't locally RCD protected, I'd be tempted to connect to that 'unprotected' MCB and add an RCD dedicated to the network local to the CU.

@StickyMicky - Well, I've been AFK,, and I'm still not sure what you were asking. Using 2 separate MCBs to feed separate banks of sockets in the cabinet should be fine, but I don't see any gain in feeding 1 socket bank off 2 ways.

@StickyMicky

 

 

Just to bring this back. Yeah you're not wrong and it is a consideration.

 

Under the stairs I would have to have some sort of extractor on a thermostat to pull the warm air out.

I'm not sure how much heat will be generated by the kit (I'm not quite sure what kit will be in there yet) but even a couple of hundred Watts is going to warm up a small space.

 

Noise could well be an issue as well, switches can make a fearsome racket.

 

The rack could be holding - 

 

8-12 port POE switch

24port unmanaged switch

A 1U server to run CCTV system (as low powered as I can get away with probably a used Dell 1U server with a couple of 2/3Tb drives)

Maybe a monitor keyboard tray (but I could just remote to the server)

The ISPs router (probably not my own)

A UPS

 

I hadn't really thought about putting them in the loft but the loft will be floored and will have a loft ladder for access.

2 minutes ago, Aspman said:

Maybe a monitor keyboard tray

 

"Belt and braces" ...

 

1 hour ago, StickyMicky said:

 

"Belt and braces" ...

 

 

If you've worked in IT like me then I'm sure you've gone to use something like this only to discover what should work doesn't and plan B is a royal PITA.

 

I think I'd rather have the screen and keyboard AND an RDP running.

 

Builder is poing to let me chat with his electrician and hopefully he'll have done similar things before. Another one of the development customers seems to be a nerd as well and has been putting in extra cabling.