ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video door bell causing chime activation of coil
by gfretwell. 12/16/18 09:01 PM
Pull out fuse panel?
by wa2ise. 12/14/18 05:09 PM
Conduit fill Calculations
by gfretwell. 12/08/18 08:39 PM
Swimming Pool question
by HotLine1. 12/05/18 12:37 PM
Tingle off the water spigot
by rmiell. 11/30/18 01:03 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 4 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Surge Protection Paper #175512
03/03/08 12:56 PM
03/03/08 12:56 PM
B
BPHgravity  Offline OP
Member
Joined: Apr 2003
Posts: 139
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
2017 / 2014 NEC & Related Books and Study Guides
Re: Surge Protection Paper [Re: BPHgravity] #175517
03/03/08 02:25 PM
03/03/08 02:25 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,324
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.


Greg Fretwell

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
252,252 Are you busy
189,209 Re: Forum
178,892 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.045s Queries: 15 (0.029s) Memory: 0.9432 MB (Peak: 1.0617 MB) Zlib enabled. Server Time: 2018-12-17 10:00:30 UTC