Metal Tie Wraps Regulations

In july 2018 the 18th edition of the iet wiring regulations bs 7671 was published.

Metal tie wraps regulations.

I ve looked through bs7671 and i can t seem to find the distance required between each metal cable tie. Keadic 30pcs 8 inches 304 stainless steel zip ties exhaust wrap coated locking metal cable zip ties for computer wire harness automotive parts and more 4 5 out of 5 stars 205 8 99 8. While it does not come into force until january 2019 there is already plenty of speculation as to what exactly the new regulations mean leading to many varied and confusing interpretations about supporting wiring systems. Bs 7671 2011 a3 2015 iet wiring regulations seventeenth edition which was published in january 2015 and comes into effect on 1 july will include a requirement that wiring systems in escape routes shall have fire resisting supports.

Plastic cable ties and cable trays are not considered appropriate neither is aluminium because of its low melting point. Bs7671 regulations were updated to ensure cable accessories installed onto fire resistant cables and systems are capable of preserving the integrity of the fire rated electrical circuits substandard or under specified plastic cable supports and ties are potentially incendiary ingredients fuelling the fire and adding to the debris rather than. Does anyone know where. Suitably spaced steel or copper clips saddles or ties are examples that will meet the requirements of this regulations this means that plastic fixings can be supplemented with metal ones but that electricians and electrical contractors cannot rely exclusively on plastic clips saddles or ties.

This will require metal fixings. However the iet states. Currently there is no product standard to identify appropriate fixings to comply with the wiring regulations. I m working on a commercial construction site and i ve been requested by he client to install metal cable ties to all inverted tray runs for my beldon and swa cables.

The requirement is included in a new regulation regulation 521 11 201 which is reproduced below. This is why suitable supports should be selected and installed to prevent collapse of the wiring system in the event of a fire. We stock metal cable ties reusable cable ties more. Spend 25 online for free delivery.