The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 7
Trumpy 6
Who's Online
1 registered (sparkyinak), 245 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#142110 - 12/09/04 02:39 PM Bad DIY site?
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Guys,

Have a look through the electrical sections on this DIY site:
http://www.diydoctor.org.uk/home.htm

Just a couple of things to start the ball rolling:

From http://www.diydoctor.org.uk/projects/spursocket.htm

 Quote:
A general rule for a ring main is that if you only have two cables in the back of an existing socket then it is ok to spur.

Have they not heard that in earlier versions of the IEE Regs. it was permissible to run two outlets as a spur from a ring? Finding two cables into a socket does not guarantee that it is part of the ring and therefore O.K. to spur from.

 Quote:
However, if you have a radial circuit with two cables coming in and out, this may be the last socket on that circuit and already has a spur.

Huh? How can you have a spur from the end of a radial circuit? If you add an outlet onto the end of a radial, the original outlet is no longer the end -- The new socket is!

From http://www.diydoctor.org.uk/projects/bondingbathroom.htm
 Quote:
The earth, or ground in America, in electrical terms, carries no current, and it is this that electricity will make a dash for when it is allowed to escape from its secure home in an electric cable or flex. This is because the earth has enough capacity to accept it and is not full up with electricity already. Should any fault develop in an electrical system the electricity will always head for earth, taking the easiest route there.

No, no, no, no, no, no, no...........

Is it any wonder that that earthing is so misunderstood when misinformation like this is perpetuated so often?

Top
Test Equipment:

Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement

#142111 - 12/09/04 05:27 PM Re: Bad DIY site?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Wow!,
I can see this topic becoming a real whipping boy.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#142112 - 12/09/04 05:55 PM Re: Bad DIY site?
aland Offline
Member

Registered: 05/20/04
Posts: 187
Loc: United Kingdom
I think the doctor needs to make an appointment with maybe a consultant. This looks like a real can of worms site for advice to me. B.Q hand outs are better than this rubbish.

Top
#142113 - 12/12/04 04:38 AM Re: Bad DIY site?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Paul,
 Quote:
Is it any wonder that that earthing is so misunderstood when misinformation like this is perpetuated so often?

This morning (Sunday) at 10am I was responded to a house with a local Electrical Inspector, via a call from the St Johns Ambulance.
What had happened was the H/O had cut the Main Earthing lead to his house while doing some gardening.
Brian (the Inspector) and I re-joined the Earth wire and were met by a series of sparks.
Once joined, we read a current of 29A.
Upon investigation, it was found that the Earth Potential Neutral that fed the house (Over-head Reticulation) had broken some time ago and the Earthing system was carrying the Neutral current.
Oddly enough, there was, not far from where the wire was cut, the label that all of our MEN wires carry, it said this:
  • Earthing Conductor: Do Not Disconnect!!

The guy died at the scene, after having cut the wire with a set of un-insulated end-pincers.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#142114 - 01/08/05 05:45 AM Re: Bad DIY site?
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Paul,
There's some rather strange advice on that site.
To quote it, after the DIYer has been instructed on how to install an Electric Shower Unit:
 Quote:
If you are sure that you have followed all of the above advice, turn on the power to test.

Good Lord!.
As far as us Electricians are concerned, Health and Safety laws, ruled out the use of the 240V Megger ages ago.
However, I also note that Part P has had an effect on this site as well, thus:
 Quote:
DIY doctor will continue to publish projects involving minor works which are permitted under the new regulations, eg the addition of a lighting point or socket to an existing circuit but regrets that because of insurance restrictions, is now unable to answer specific electrical question

Hmm.



[This message has been edited by Trumpy (edited 01-08-2005).]
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#142115 - 01/25/05 01:00 AM Re: Bad DIY site?
PaulCornwall Offline
Member

Registered: 06/02/03
Posts: 112
Loc: England
always your worst fear with PME supply..

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals