Yves said:
Head over to American Power Conversion or Powerware. These are two large
UPS makers and will give getter 'facts' on why to use UPS or surge
protectors.
Been there. Where do they define how the protector works for each
type of surge? They don't. Why? They only claim protection from a
type of surge - the one that typically does not exist. There is one
well proven fact even in 1930s GE and Westinghouse science papers: the
protector is only as effective as its earth ground. What does APC, et
al forget to mention? Earthing.
Effective protector are manufactured by companies with responsible
reputations such as Square D, Leviton, Intermatic, GE, Siemens,
Polyphaser, and Cutler Hammer. Ineffective protectors are hyped by
'lying by telling half truths'.
For example, how to identify ineffective protectors - plug-in or UPS.
1) Protector has no dedicated connection to the most critical
component in any protector 'system': earth ground. 2) Manufacturer
avoids all mention of earthing. No earth ground means no effective
protection. So APC, et al forget to mention they don't even claim to
protect from the type of surge that typically damages electronics.
Again, any protection that works at the electronics is already inside
those electronics. Protection that must not be overwhelmed. IOW we
install a single effective 'whole house' protector on each incoming
utility so that protection inside ALL electronics is not overwhelmed.
That includes GFCI in bathroom and kitchen, smoke detectors,
dishwasher, clock radio, and the furnace controls. These are
electronics that also contain internal protection. Internal protection
that must not be overwhelmed. Electronics that also cannot be
protected by ineffective plug-in protectors.
What does APC, et al avoid discussing? Earth ground. No earth
ground means no effective protection. A surge protector is only as
effective as its earth ground - as Ben Franklin even demonstrated in
1752.