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Bud-- Bud-- is offline
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Default Does as GFCI give you some surge protection?

w_tom wrote:
On Mar 27, 7:19 am, wrote:

GFCI's have some surge protection built in to protect them from surges
in house wiring. Does this same surge protection extend a bit to
protect what is pluged into a GFCI?



For accurate information on surges and surge protection try:
http://www.mikeholt.com/files/PDF/Li...ion_May051.pdf
- the title is "How to protect your house and its contents from
lightning: IEEE guide for surge protection of equipment connected to AC
power and communication circuits" published by the IEEE in 2005 (the
IEEE is the dominant organization of electrical and electronic engineers
in the US).

And:
http://www.nist.gov/public_affairs/p.../surgesfnl.pdf
- this is the "NIST recommended practice guide: Surges Happen!: how to
protect the appliances in your home" published by the National
Institute of Standards and Technology (the US government agency formerly
called the National Bureau of Standards) in 2001

Both guides were intended for wide distribution to the general public to
explain surges and how to protect against them. The IEEE guide was
targeted at people who have some (not much) technical background.


Typically destructive surge seeks earth ground. Surge that
typically does damage is earthed before getting near to household
appliances or GFCI. No protector adjacent to an appliance (or GFCI)
will provide such protection.


Bullcrap. Both the IEEE and NIST guides say plug-in suppressors are
effective.


Anything that would work already exists
inside the appliance (as even defined by industry standards). Worse,
those other surges may pass through appliances destructively to earth
if protector is too close to electronics.


Bullcrap. The IEEE guide shows 2 examples of surge suppression. Both use
plug-in suppressors.


A protector is not protection. Earthing is the protection. A
protector is a connecting device to protection. What defines the
quality of that protection? How good is the earthing.


This religious belief in earthing is not shared by the IEEE for plug-in
suppressors. The IEEE guide explains plug-in suppressors work by
CLAMPING the voltage on all wires to the common ground at the
suppressor. They do not work primarily by eathing. Because that violates
w_'s religious belief in earthing he can't understand the guide.


View current technology protectors
that are located where fire danger is greater:


With no technical arguments try scare tactics

http://www.westwhitelandfire.com/Art...Protectors.pdf
http://www.hanford.gov/rl/?page=556&parent=554
http://www.zerosurge.com/HTML/movs.html
http://www.nmsu.edu/~safety/programs...tectorfire.htm


For anyone with minimal reading skills the hanford link talks about
"some older model" power strips and specifically references the revised
UL standard, effective 1998, that requires a thermal disconnect as a
fix for overheating MOVs. Overheating was fixed in 1998.

And w_ is dishonest when he says these are "current technology
protectors". As noted above, his own link said the problem was fixed in
1998. None of the links say there is a problem with current suppressors.
None of the links even say the damaged suppressors had a UL label.


Protector must be adjacent to earthing AND protector
must be distant from those transistors. How distant? Up to 50 meters
distant because separation is also part of the protection - and a
short connection to earth is essential.


The religious belief in earthing #2. The guides contradict everything in
this paragraph.


Those promoting plug-in protectors must promote half truths.


Those promoting plug-in suppressors include the IEEE and NIST.

That
troll who will arrive to promote for the plug-in industry (and deny
it) will be along soon.


The troll has already arrived. w_, being evangelical in his belief in
earthing, searches google groups for "surge" to paste in his religious
tract to convert the heathens. Everyone else here is a regular
contributor to this newsgroup.


Meanwhile, protection is about earthing. No
way around reality. Even the IEEE demands earthing, bluntly, in
standards.


Religious belief in earthing #3.

And the IEEE guide was published by the IEEE. The IEEE guide says
plug-in suppressors are effective.



Provides are the 'whys' that some ignore
to promote myths and, well, look at those scary pictures of protectors
that meet current standards


The lie repeated.


For reliable information on surge protection read the IEEE and/or NIST
guides. Both say plug-in suppressors are effective.

And as always, w_ can't find a link that says plug-in suppressors are
NOT effective. All you get are his opinions based on his religious
belief in earthing.

--
bud--