ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Vibrator Supplies??
by gfretwell - 10/19/19 08:33 PM
FPE in Germany
by NORCAL - 10/16/19 08:24 AM
Help with aging employee advice.
by Bill Addiss - 10/15/19 10:58 PM
Fuse blower plug?
by gfretwell - 10/13/19 03:23 PM
Power factor and transformer efficiency
by TeslaEdison - 10/13/19 04:05 AM
New in the Gallery:
FPE Breaker panel in germany
What is this for?
Who's Online Now
0 registered members (), 20 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Submersible well pump disconnect location #170663 11/08/07 01:00 PM
Joined: Nov 2007
Posts: 1
T
tark52 Offline OP
New Member
I'm installing a sub. pump, 240 volt 2-wire that pumps 250' to my pressure tank under the house. Where does the code require the disconnect to be located? Can I locate it under the house?

2017 / 2014 NEC & Related Books and Study Guides
Re: Submersible well pump disconnect location [Re: tark52] #170665 11/08/07 02:21 PM
Joined: Jul 2004
Posts: 9,409
G
gfretwell Offline
Member
430.102 says "The disconnecting means shall be located in sight from the controller location".
In the case of most submersible pumps the controller is the pressure switch. If you have the disconnect there I think you have fulfilled the requirement. You could also use a locking switch somewhere else with proper labelling. (using exception 1)


Greg Fretwell
Re: Submersible well pump disconnect location [Re: gfretwell] #170669 11/08/07 03:50 PM
Joined: Jan 2004
Posts: 1,498
G
George Little Offline
Member
Greg- I agree with you and this might be one of those place that qualifies under 430.102(B) Exception (a) in which case if the pump were submersed it would be impracticable to install a disconnect switch at the motor.


George Little
Re: Submersible well pump disconnect location [Re: George Little] #170697 11/09/07 12:05 AM
Joined: Jul 2004
Posts: 9,409
G
gfretwell Offline
Member
From a practical sense from someone who has lived with a well for the last quarter century, the pressure switch is the first place a person will go to try to fix this thing and that is the best place for the disconnect. Having one down in the well is impractical although I assume someone might want one at the well head. The problem is, unless you have a separate box for the disconnect and the wires feeding the well, it is a distinction without a difference since the line side of the disconnect might still be available to the repairer.

As an OT aside, I finally gave up on screwing with well pressure switches and I put mine on an Amp plug with a Hansen quick disconnect water connection. I keep a "hot spare" so when I am out there in my skivvies at 2 AM I can just swap it out.
I also built a "house" for my well equipment that keeps it out of the weather but I guess "freezing" keeps yours inside. In Florida carpenter ants are the biggest enemy of pump switches. It seems to be a perfect home for them


Greg Fretwell

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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

 

Member Spotlight
JoeKP
JoeKP
Berkley, MA
Posts: 144
Joined: March 2008
Show All Member Profiles 
Top Posters(30 Days)
sparky 10
Popular Topics(Views)
259,739 Are you busy
195,069 Re: Forum
184,477 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3