On Sun, 23 Nov 2003 19:27:23 -0500, w_tom wrote:

No earth ground means no effective protection. That dedicated
earthing wire to central earth ground must be less than 3 meters.

Do I detect an American? Not quite UK terminology being used.

The fuse is only to protect humans because a surge protector
was grossly undersized - too few joules.

Fuses don't protect humans, they protect the wiring. RCDs protect
humans.

Just another reason why effective protectors are located when
utilities enter the building, at the service entrance, and less than
3 meters to central earth ground.

Very few places in the UK have such protection installed there doesn't
appear to be the need.

Another reason to suspect a US based poster (that and the Path:...).
Our 230v mains doesn't suffer so badly from sags/spikes when heavy
loads are switched on/off, apart from I^2R losses inductive effects
are from the size of the current flowing not the voltage. Lower
voltage = more current for same power, more current = bigger
spikes/sags.

--
Cheers
Dave. pam is missing e-mail