Blind-spot for drawings.

[david911cockburn@btintern]

Hi All,
According to samFIRT and his infomation on 'empirical' evidence it would seem that if at any point during a fire, if the warning system should fail, it would only take one person to return to their desk and everyone else would follow. Therefore this situation appears to be even more urgent than I thought!
OK for anybody who does have a blind-spot for drawings then I will do my best to explain those that I have sent to Kurnal:
The first two represent a 'radial system' as they are defined within British and International electrical engineering dictionaries, the top drawing simply represents eight sounders that have been individually supplied as 'spurs' from the CIE and they are represented around the circumference of an imaginary (somewhat squashed) circle. The bottom drawing is in the 'schematic' form and shows the CIE enclosing eight fuses each one of which protects a single sounder, the sounder to the far right is shown as being on fire and its' supply cables are shown as 'dotted lines' in order to highlight the fact that the fuse has ruptured due to short-circuit in the cable and this this sounder has ceased to operate, whilst the other seven sounders are continueing to operate during the fire. 

[Graeme]

MICC is old School....i'm sure if the terminations in FP200 were sub standard then it would not still be run in jobs by thousands of Engineers everyday.

Are you reffering to the pots,glands etc as equally as good as the cable itself or the two conductors after the pots which are only sleeved in PVC??

Here we go again then...

[Graeme]

what are you telling us david...that short circuit isolators are a new invention of yours?

what diagrams?

[Graeme]

They're sleeved in neoprene.

When fire resistance is required, standard Pyrotenax 105°C seal Ref. RPS may be used provided that the STANDARD PVC SLEEVING is replaced by
silicon elastomer coated glass braided sleeving

[kurnal]

I have been reading a number of claims made by David on another forum (from which he is now banned) that he has been very influential in writing BS5839-1 and that many of his suggestions have been included in the standard. So I am surprised at you having the gall to question his illogic Graeme

[colin todd]

Can we have the link to that forum Big Al.  I promise not to get banned.

[kurnal]

http://www.diynot.com/forums/viewtopic.php?t=228045&start=45

[Graeme]

http://www.amazon.co.uk/Illustrated-Explanation-Earthed-Equipotential-Bonding/dp/1449041612/ref=sr_1_fkmr0_1?ie=UTF8&qid=1275373005&sr=1-1-fkmr0

gets good reviews i see

[Graeme]

I am also a successful contributor to BS 5839-1, our fire alarm system standards. An awful lot of the amendments that I have put forward have also been deferred to the next major re-write

Colin

you kept this one quiet.

 Please don't re-write 5839-1 David as it means i will have to sit all those courses again ....

[Davo]

Very entertaining links Guys

I here there's a vacancy for Royal Jester since my hero Spike passed on


davo


He is joking, right..........


right

[Tom W]

"Oh my god - I have only just read this and the extracts. Most of it is completely incorrect and completely out of date."

Thats amazing, you have been found out by the sparkies!

It seems they have had enough of you and I think we have too.

Perhaps you should move on to the next set http://www.ukplumbersforums.co.uk/

[Midland Retty]

Ok I have a confession... I always suspected Mr Cockburn was simply someone messing about under a silly name (Lets face it, his surname could be a rather nasty medical condition around the gentleman area)

Now I see he has actually written a book, and thus must be a real chappie, and his surname is indeed bona fide!... Im quite speechless

[kurnal]

Book? Its more like a leaflet. And he had to pay to have it published. Toddy has written longer postcards.

[AnthonyB]

I dare him to post on www.firealarmengineers.com and see how long he lasts on there!

[David Rooney]

Now I see he has actually written a book, and thus must be a real chappie, and his surname is indeed bona fide!... Im quite speechless

Thought you said it was Cockburn ?   

Has he been telling JR Hartley how to fly fish as well ??