Re: Soon to arrive my HDTV

w_tom wrote:
> 
>   How much would a 1000 joule 'whole house' protector absorb during
> that same 2000 amp surge?  About 75 joules.

Research by Martzloff, cited in a previous post, found a max of 34J 
dissipated at a MOV on a branch circuit with surges to a power system of 
up to 10,000A.

> 
> the proector is
> only as effective as its earth ground.

And the required statement of religious belief in earthing.
But plug-in suppressors do not work primarily by earthing.

Still never any sources that agree with w_ that plug-in suppressors are 
NOT effective.

Still never answers for simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in 
suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest 
solution"?
- How would a service panel suppressor provide any protection in the 
IEEE example, pdf page 42?
- Why does the IEEE guide say "the only effective way of protecting the 
equipment is to use a multi****t protector."
- Where is the link to a 30,000A and 590Joule rated MOV for $0.10.
- Why does the IEEE Emerald book include plug-in suppressors as an 
effective surge protection device?
– How can you protect an airplane with no earth ground?

For real science read the IEEE and NIST guides - both say plug-in 
suppressors are effective.

-- 
bud--