Support of cable to BS5839-1

[John Webb]

Graeme,
I was quoting entirely from my printed copy. I'll look at the Screwfix website probably tonight and post something if I can find it.

[John Webb]

Graeme,
The Fischer metal wall plugs are under 'Expansion Plugs'. hopefully you will get there as follows:
http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=101581&ts=62602

The Nail Anchor is under 'Shield Anchors' - item 22643:
http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=100058&ts=62942

[Tom Sutton]

Try  http://www.b2bchinasources.com/showroom.php?c=6543&f=5&p=0000023318 gives the details but not the price however there is a contact.

[Graeme]

Thanks John

Those are the pages that i have been looking at.

http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=101219&ts=94124

This shows the metal wall plugs that Twsutton his posted a link to but if you look they do not look like they stock metal although they say so,just nylon ones.

[bill_davis]

I'm a client and not a designer. On a DIN standards project I worked on a few years ago, the emergency cables had to be supported to survive the life of the fire resistant- say mineral insulated - cables , ie, cable trays had to be fastened to a slab with supports that would survive 60 or 90 minutes, or cables had to be clamped to 1hour or higher walls with fire resistant clamps, etc.

On the project I am on now, the designers are saying that British Codes don't require such support. I can't believe that and I think that BS5839-1 may cover this part of the application. Unfortunately I don't have access to the codes.

Can someone please confirm the applicable circumstances? Does BS5839-1 or another code contain this requirement? Or is there truly no required support systems under the BS codes.

Thanks much,

Bill Davis

[Graeme]

f) Methods of cable support should be such that circuit integrity will not be reduced below that afforded
by the cable used, and should withstand a similar temperature and duration to that of the cable, while
maintaining adequate support.

make your own main up if you apply this to wall plugs as there is some who do and some who don't.

This does however certainly apply to the use of metal cable ties and metal clips.

[bill_davis]

Graeme,

Thank you for your input! Is the f) actually from BS5839-1? If so, could you also please give me the paragraph number?

Happy Whit Monday; we're off to Damascus. It should be interesting.

Bill Davis

[Wiz]

Graeme,

Thank you for your input! Is the f) actually from BS5839-1? If so, could you also please give me the paragraph number?


Bill Davis

If I may help out and save Graeme answering, it is clause 26.2 f) of BS5839 Part 1 2002.

[bill_davis]

GREAT!  Thanks, Wiz.

Bill

[FireFly40]

I saw some screws with clips in the fire alarm bit of the german version of wickes (toom) there was no english part on the label but a rough translation was " mega hardened thready bit on screw so screw straight into concrete no plug required " thought at first lazy foreigners dont even bother using plugs especially as they came with their own really short masonry drill , but after using some of their twin and earth ( round so it doesnt twist up like a snake and green/yellow already on the earth which is the same size as the L/N) realized we can learn stuff from fritz. These are probably the beasts you need. Probably be available in UK in 20 years or so. Rule Brittania uber alles

[Goodsparks]

Like these. (been around for a while)

http://www.screwfix.com/app/sfd/cat/pro.jsp?ts=82231&id=12531

Paul

[FireFly40]

Yes those are the fellas certainly save all the expense of mini rawlbolt anchors etc. Never used em though but I bet theyre the dogs wotsits
Thanks Paul

[GregC]

Hi, I have been lurking on these boards for many many months and found them to be very educational so many thanks for all your posts to date.

Sorry to resurrect this topic but I have searched everywhere for an answer that should be simple and relates to this topic.

What is the minimum spacing between fixings on either a wall or cieling or inverted tray, the only item I can find or have found so far is the HSE vibrations requirement being 3 fixings per metre and that was on Pirellis "buy our fixing guns" page.

If anyone can point me in the right direction it would be greatly appreciated

Cheers

[David Rooney]

Hi, I have been lurking on these boards for many many months and found them to be very educational so many thanks for all your posts to date.

Sorry to resurrect this topic but I have searched everywhere for an answer that should be simple and relates to this topic.

What is the minimum spacing between fixings on either a wall or cieling or inverted tray, the only item I can find or have found so far is the HSE vibrations requirement being 3 fixings per metre and that was on Pirellis "buy our fixing guns" page.

If anyone can point me in the right direction it would be greatly appreciated

Cheers

BS 7671 - 16th edition electrical regs..... soon to be 17th edition.

[Graeme]

soft skin   every 300 horizontal and 400 vertical