Firetrace....

[Galeon]

Okay,I put forward a solution of three parts to the client using the Firetrace system (the third being activation via a double knock smoke detection arrangement which would be the most costly option).
Their insurers have knocked back both the options of using solely Firetrace and the latter electrical variation.They are insisting that the cabinets be covered by an aspirating system that activates the extinguishing system - prudency or just another example of someone who thinks they know?

Look on the bright side , if it all goes t**s , you aint in the frame.

[kurnal]

Time for a bit of bluff calling / market testing?  Theres lots of insurance companies out there!

[Allen Higginson]

Time for a bit of bluff calling / market testing?  Theres lots of insurance companies out there!

Big old US power generation plant so what the insurers say is paramount (despite the guys here trying to work a limited budget!!!)

[spanner]

I was the maintenance engineer on a site that had the same project in mind as what you’re doing
We went the whole hog, installed a k201 extinguishing panel with 4 heads inside the cabinet (as it was fairly large) for the double knock of the gas, and a VEDA with capillary pipes into the enclosure for the early warning. All signalled back to the house system.
The site opted for Co2 as it was inside an equipment cabinet.

And just to make amusing, the cabinet was already installed inside an inergen protected room. They just wanted early suppression inside the cabinet as it was important to the sites running.

[Allen Higginson]

I was the maintenance engineer on a site that had the same project in mind as what you’re doing
We went the whole hog, installed a k201 extinguishing panel with 4 heads inside the cabinet (as it was fairly large) for the double knock of the gas, and a VEDA with capillary pipes into the enclosure for the early warning. All signalled back to the house system.
The site opted for Co2 as it was inside an equipment cabinet.

And just to make amusing, the cabinet was already installed inside an inergen protected room. They just wanted early suppression inside the cabinet as it was important to the sites running.

Similar indeed - customer wanted CO2 but advised against it due to the enclosures volume being 1.6 cubic metres and the aspect of the high pressure discharge/post-discharge damage to the equipment.
My original,original (!) proposal was to install an aspirating system to signal the house system so that someone could investigate and hit it with a portable if needs be.
I have advised today against using the aspirating system as the actuation source but I reckon the insurers will insist on it as they know best!