Yes some insulation needed and perhaps forced ventilation too. There used to
be a fire detecting extinguisher available for such racks back in the 80s,
but cannot remember where from now.
Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Bob Minchin" wrote in message
news
What is the construction of your roof? If it is a modern warm roof then
you might be OK but if it is a traditional cold roof, it will get stupidly
hot in summer and almost certainly kill your equipment.

Tim Watts wrote:
I'm looking to site a small 19" network cabinet in my attic space, near
the main ELV cable tray.

It will contain some running equipment - PoE network switch, IP Cam
recorder, UniFi Wifi controller.

Probably not my 2 small servers - they;d be better on a shelf in the
hall. So probably 200-300 watts of net consumption at worst - ie needs
some ventilation but not loads.

Mindful of a piece of faulty equipment not starting a fire in a space
filled with wood and stored "stuff", I am thinking of a full metal
cabinet, the sort with lots of small vent holes/slots all over.


My feeling is:

*If* (and it's rare, but I have seen it happen, couple of items from
1000s of bits of kit I've been involved with over the decades) a bit of
equipment incinerates, that doing so inside a metal box is likely to
significantly reduce the likelihood of any fire spreading outside before
fuses blow and the source of the fire quenches. There after all is not
actually that much burnable material in say a metal boxed network switch.

Given a bundle of Cat-x cables are coming in, let's also assume I'll use
low-smoke LSZH type cables as far as practical.


Any comments?