The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Son of Sparky
by sparky
58 minutes 49 seconds ago
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
230 or 345 kV transmission lines?
by annemarie1
10/12/16 01:23 PM
Is this a fix or just a bandaid?
by gfretwell
10/10/16 06:49 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 11
renosteinke 6
HotLine1 6
ghost307 5
Potseal 4
Who's Online
0 registered (), 261 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#38145 - 05/15/04 04:35 PM hello lightning strike
sparky70444 Offline
Junior Member

Registered: 03/21/04
Posts: 2
Loc: louisiana u,s,a
Hello all this is a nice forum i read it daily i am a industrial maint. electrician i dont do much residential , But for a neighbor i went to check his well pump after a lightning strike on a tree 50 yards away? well he had 240 on the pressure swtch and no pump so i ohmed it and yep wide open i had too go too work so he called a plumber but any way? I know its all theory but would did the current do when it traveled down the tree too the ground? Did it dissipate into all directions or find a path such as a well pump casing and finally can anything be done too stop it from happening again any hello from louisiana and all be safe bye

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#38146 - 05/15/04 10:57 PM Re: hello lightning strike
Bjarney Offline

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
Although there is some brand-specific information, one reference for submersible water pumps is

Lightning hits can be gruesome and merciless to a lot of electrical gear. There are usually a lot of variables in the degree of damage a hit causes. Good luck.

Examples of general info on lightning-protection components…

#38147 - 05/16/04 07:11 AM Re: hello lightning strike
FWL_Engineer Offline

Registered: 05/15/04
Posts: 53
Loc: Barnet, Hertfordshire, UK
The problem you have is that things like Motors and Transformers love magnetic fields..and lightning strikes are accompnaied by ,albeit momentary, very large ones.

It is quite common for nearby strikes to induce dangerous, fatal or at least damaging voltages into any large inductive circuit/device within range of the mag field.

Most people who claim lightning strikes are usually here to speak because they actually got zapped by large voltages induced in them byt the strike field. Normally the bolt would kill instantly from the heat generated by the strike occuring directly to a person.
Click me if you dare \:\)


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals