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#175512 - 03/03/08 09:56 AM Surge Protection Paper
BPHgravity Offline
Member

Registered: 04/08/03
Posts: 141
Loc: Port Charlotte, Florida
Here is a nice paper on basic surge-protection:

http://www.lightningsafety.com/nlsi_lhm/surge-protection.pdf
_________________________
Bryan P. Holland, ECO.
Secretary - IAEI Florida Chapter

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2014 / 2011 NEC & Related Books and Study Guides
#175517 - 03/03/08 11:25 AM Re: Surge Protection Paper [Re: BPHgravity]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
Good stuff. What Martzloff calls "Cascading protective devices" we called "layers of protection". Catch as much as you can at the Dmarks, bonded together, then polish off the rest before it gets to the equipment with point of use protection.
We also hung toroids on signal cables and power cables to damp out very short common mode transients.
We took several lightning calls a day down to one or two a summer in the 4 counties around Ft Myers with this strategy. We had over 1000 customers and maybe ten times that number of boxes.
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