ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 3
Recent Posts
Nec circuit protection
by Jkhayward. 11/21/17 09:05 PM
FPE in Germany
by Texas_Ranger. 11/19/17 07:30 AM
Ceiling fan distance from outdoor hot tub
by gfretwell. 11/16/17 02:18 AM
diazed fuses
by Texas_Ranger. 11/13/17 03:02 PM
Theft deterrent alarm
by gfretwell. 11/12/17 01:39 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
242,611 Are you busy
178,806 Re: Forum
170,045 Need opinion
Who's Online Now
1 registered members (gfretwell), 20 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#184275 - 02/06/09 12:28 AM Septic pump wiring  
schenimann  Offline
Member
Joined: Feb 2008
Posts: 193
Western North Carolina
What is the preferred method for wiring these? I was at a house today and there was one outside. It had about a 30" cover with the wires coming out the center. They were drapped across then went down into some conduit underground and came up the wall to the alarm and disconnect. I have also seen these where they just bury the wires to the wall and plug them in. How in the world does this pass inpection?

What is the best way to get the wires out of the tub and into conduit?


Work Gear for Electricians and the Trades

#184280 - 02/06/09 02:24 AM Re: Septic pump wiring [Re: schenimann]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
Best way?

The arrangement you describe is typical for indoor installations ... but not for outdoor.

Typically, an outdoor unit will have sort of junction box, as there's no way the cables will reach the panel.

"Bargain" installs will attempt to use a box of some sort in the pit. This is a poor choice, as a) the box rusts, and fills with crud; and, b) cables coming in are subject to damage, ensuring a future replacement.

"Better" installs will have a Christy box near the pit, with splices made there. The weakenss with these is that the conduit to the pit is NEVER big enough. Cables swell, and it becomes impossible to pull them out for replacement.

"Best" would be TWO handholes - one for power, one for the floats. 2" pipe would exit using a sweep from under the handhole, and enter the pit farther down. If you wanted, you could even try to seal this pipe with ductseal; I wouldn't bother.

How you get from the house to the handholes is up to you. I would -again- prefer pipe. Now, this pipe I would seal at the handhole - that swelling insulation issue again.


#184283 - 02/06/09 09:21 AM Re: Septic pump wiring [Re: renosteinke]  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
As Reno suggests.
I enlarge (or make a new) hole in the 'chimney' of the tank, 2" pvc out for the floats. Pvc from the house to the new PVC box. Too many guys just add a box in the pit and use the factory 1'. My Tummy is too weak for that.

2 ckts out there. 1- for the run/stop floats and 1- for the alarm float.



Member Spotlight
Posts: 362
Joined: April 2003
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.016s Queries: 15 (0.004s) Memory: 0.7525 MB (Peak: 0.8783 MB) Zlib enabled. Server Time: 2017-11-22 03:54:16 UTC