FOR REFERENCE - Useful manufacturer/product INFO

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Welcome to this guide to useful products and information provided by manufacturers.

Please be aware of building regulation "Part P" which is here which covers electrical work on the fixed wiring in domestic dwellings in England and Wales.

Please click the link for each topic.

1) JUNCTION BOXES
2) SWA EARTHING NUTS
3) FLEXISHIELD CABLES
4) COUNTERFEIT MCB ALERT
5) COUNTERFEIT CABLE ALERT

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1) JUNCTION BOXES


The use of junction boxes is fraught with possible non-compliances concerning cable strain relief and the accessibility of screwed connections etc.

This guide from Ashley covers some of the regulatory implications, and shows some useful alternatives to traditional round JBs and choc-blocks.

http://www.hager.co.uk/files/download/0/2281_1/0/JunctionBoxGuide.pdf

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I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

[ban-all-sheds]

2) EARTH NUTS


The traditional method for earthing the gland and enclosure when terminating armoured cable is to use a tag, commonly called a 'banjo' bolted through the enclosure or mounting plate:



Thanks to Spark123 for the photos.

This takes more time, it occupies space inside the enclosure and for external use it creates a route for possible water ingress and it damages any protective coatings, creating a corrosion risk.

An alternative is to use earthing nuts, aka Piranha nuts.







Fitting instructions.

__________________
I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

[GaryMo]

3) FLEXISHIELD CABLE TO BS8436

The issue of safety with cables concealed in walls and partitions has been an industry issue for sometime, the 17th Edition of the wiring regulations, to be implemented by July this year, has now tightened up on this application.

One of the most significant new requirements is for the potential use of RCDs or RCBOs, especially if walls or partitions are constructed internally with metallic components, also if the installation is not intended for use under the supervision of skilled or instructed persons.

Cables that meet BS 8436 satisfy the relevant clauses for these applications, Flexishield fully meets all the requirements of BS 8436 and has been successfully specified and used during the past 4 years on many projects

Flexishield Cables

Applications

Construction

Technical

[Spark123]

From Schneider group website:

Counterfeiting Alert

Counterfeit and copy C45N miniature circuit breakers

Any company has a moral and legal obligation under the HSE and new Corporate Manslaughter and Homicide act (6th April 2008) to take all necessary steps to inform the industry when a potentially fake and dangerous product is brought to their attention. They must also take actions to track down the suppliers of these and the channel through which they are being supplied.

It has come to our notice that a very dangerous and fake copy of the C45N Mcb has been found in another part of the European community.

This copy has no internal workings, which would operate the device in the event of a fault occurring in the circuit that it is supposed to protect. This could have dire consequences for the user and lead to the suppliers and installer facing legal action.
Even though this device has been found in another country they may have found their way into the UK distribution market through non-approved channels and could already be installed. The fake device has similar markings to the C45N Mcb, however we have not supplied this into the UK market since 1991 and any product like it, which is in the marketplace, is either a copy, counterfeit or worse still a complete fake.

What to look for:

Since the copy has very few internal components it is much lighter (a genuine product is between 103 and 110 grams) than the genuine Mcb also the fake is made of plastic which is brittle and light cream in colour not light grey. A large multi9 logo is at the top of the product. There is large CE marking on the front face which the genuine product did not have since it was discontinued in the UK before CE marking was a requirement.


Schneider website

[Spark123]

BASEC issues public warning about 'Kaydour' branded armoured cables:

http://www.voltimum.co.uk/news/12956/infopro.tradeassoc.brand/BASEC-issues-public-warning-about--Kaydour--branded-armoured-cables.html