[GreenKeys] One final note on safety

[Jim Backus]

For non-US members of the list the guidance given by Jeffrey is sound 
but you should consult local regulations regarding ground neutral and 
line circuits. In the UK the regulations are the IET Wiring Regulations 
17th edition or BS7671. The UK functional equivalent of the GFCI is 
known as an RCD Residual Current Device. Almost all circuits in the UK 
must be protected by a 30 mA RCD to comply with 17th edition. Commonly 
Earth (Ground) and Neutral are connected together at the company fuse. 
There is then an earth common block that all circuits and bonding are 
connected to.

I don't consider myself an expert on the wiring regulations so please 
consult them for authoritative information.

Jim Backus G4PFJ (also MIET CEng)

On 02/10/2013 03:05, Jeffrey D Angus wrote:
> I constantly hear all sorts of reasons why not to, but...
>
> EVERY piece of equipment that I operate, from vintage TTY
> machines to test equipment all has a third wire safety ground.
>
> Older house with two-prong outlets? Or replacement outlets
> with the standard u-groud three-prong types that either have
> NO connection to the ground or worse, tie the ground to the
> neutral at the receptacle. Both are asking to be a victim of a
> potentially lethal accident.
>
> Don't have a real ground in the shop? Do NOT run a new
> ground rod outside the window. Run a wire from the neutral
> to ground  point at the service panel and use that.
>
> Code regulations prohibit separate grounds in the system.
>
> Although you can have additional grounds, such as for antenna
> grounding and the likes as long as they are connected to the
> service panel safety ground as well.
>
> Jeff-1.0
> wa6fwi
>
>
>
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