[Message Prev][Message
Next][Thread Prev][Thread Next][Message
Index][Thread Index]
Re: UPS for node 0
- Subject: Re: UPS for node 0
- From: "Patrick Lidstone" <patrick@xxxxxxxxxxxx>
- Date: Wed, 07 Apr 2004 21:15:01 -0000
--- In ukha_d@xxxxxxx, "Dean Barrett" <dean@r...> wrote:
> Did this for a guy the other day.
>
> We wired his study in a 4mm radial rather than ring.
>
> Went via a pair of 45a Flex outlets side by side in a deep bar box.
Linked
> together internally.
>
> When he is ready to install UPS, removes links - put input into one
flex
> outlet and output on other...
>
> Other alternative is to have a small sub board fed from your mains
with a
> dedicated MCB again cutting the sub boards feed with UPS.
>
I'm not sure I'd do it this way - if you lose your UPS for any
reason, the whole of Node 0 goes down. Bear in mind that if your
outlets are not individually fused, a fault that develops in any of
the protected equipment (such as a switch mode power supply failing
dramatically) will take out the whole of the protected side of your
supply instantaneously, completely defeating the objective of having
a UPS. A common approach in many comms rooms to mitigate this
eventuality is to have one UPS per rack, and feed one piece of
equipment per fused outlet on the UPS.
Patrick
UK Home Automation Meet 2004 - BOOK NOW!
http://www.ukha2004.com
http://www.automatedhome.co.uk
Member Offers - http://www.freeranger.co.uk/ukha
Home |
Main Index |
Thread Index
|