Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-26-2012, 10:27 AM   #1
Newbie
 
Join Date: May 2012
Posts: 5
Rewards Points: 10
Question

220 Exterior Wiring being spliced


I'm having some irrigation installed. The installer cut through a 220 in ground line. They said it would be ok to splice it and put silicone around it. I'm concerned about the safety since the line is connected to an outlet in a detached garage that contains 2 kilns that run on the 220 circuit. The garage is about 50 feet from the house. Is it safe to splice the wire in three places in the manner described above? Should another line be run within conduit? Will splicing effect the amperage?

kmatthews is offline   Reply With Quote
Old 05-26-2012, 10:33 AM   #2
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,340
Rewards Points: 2,000
Default

220 Exterior Wiring being spliced


Simply splicing the wires that were cut and siliconing the connections is not compliant. I always use a no heat, underground splice kit, but they do have heat shrink varieties as well.

I should ask, what type of wire was cut? Direct burial?

k_buz is offline   Reply With Quote
Old 05-26-2012, 10:57 AM   #3
Newbie
 
Join Date: May 2012
Posts: 5
Rewards Points: 10
Default

220 Exterior Wiring being spliced


In answer to your question regarding the type of wire and whether it was buried directly in the ground: the type of wire is Rouond NM-B cable, AWG 10-3 w/ ground, non-metalic sheathed cable. The cable was originally in a conduit pipe. The person who was making the repair did not put it back into conduit. Should the wiring be re-run? Thank you for your advice.
kmatthews is offline   Reply With Quote
Old 05-26-2012, 11:07 AM   #4
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 7,712
Rewards Points: 2,222
Default

220 Exterior Wiring being spliced


Type NM-B is not rated for use outside or underground. It should not have been installed and should be replaced.

Since you have conduit this may not be that hard to fix by installing THWN conductors after patching the conduit.
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
The Following 7 Users Say Thank You to Jim Port For This Useful Post:
andrew79 (05-26-2012), frenchelectrican (05-27-2012), gregzoll (05-26-2012), J. V. (05-28-2012), k_buz (05-26-2012), plummen (05-27-2012), Speedy Petey (05-26-2012)
Old 05-26-2012, 11:27 AM   #5
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,867
Rewards Points: 2,038
Default

220 Exterior Wiring being spliced


It should be their responsibility to repair the conduit. NO question. DO NOT simply splice it outside the conduit.

It should then be your responsibility to replace the NM-B cable with the proper outdoor cable or conductors.

It's only 50'. That is not that big of a deal.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
The Following User Says Thank You to Speedy Petey For This Useful Post:
J. V. (05-28-2012)
Old 05-26-2012, 12:14 PM   #6
Newbie
 
Join Date: May 2012
Posts: 5
Rewards Points: 10
Default

220 Exterior Wiring being spliced


I had a feeling that something wasn't right. Just so I'll know when the next licensed electrician (yes, the electrician that ran the line was licensed) what type of wire should be used for a 220 outlet in ground? Should conduit be used irregardless of the type of wire? I live in Florida in an area with very high degree of lightning strikes. I was wondering if it would be safer with conduit. Thanks for the information. Although I'm a consumer, I've learned that I have to be somewhat knowledgeable or this kind of thing happens
kmatthews is offline   Reply With Quote
Old 05-26-2012, 12:52 PM   #7
Sparky
 
Join Date: Mar 2011
Location: Central Florida
Posts: 701
Rewards Points: 500
Default

220 Exterior Wiring being spliced


If a cable is used it should be type UF.

Individual conductors should be type THWN
Techy is offline   Reply With Quote
Old 05-26-2012, 01:03 PM   #8
Sparky
 
Join Date: Mar 2011
Location: Central Florida
Posts: 701
Rewards Points: 500
Default

220 Exterior Wiring being spliced


you also may have another violation (more than one circuit ran to a detached outbuilding)
Techy is offline   Reply With Quote
Old 05-26-2012, 01:54 PM   #9
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,867
Rewards Points: 2,038
Default

220 Exterior Wiring being spliced


Quote:
Originally Posted by kmatthews View Post
I had a feeling that something wasn't right. Just so I'll know when the next licensed electrician (yes, the electrician that ran the line was licensed) what type of wire should be used for a 220 outlet in ground? Should conduit be used irregardless of the type of wire? I live in Florida in an area with very high degree of lightning strikes. I was wondering if it would be safer with conduit. Thanks for the information. Although I'm a consumer, I've learned that I have to be somewhat knowledgeable or this kind of thing happens
First off, there is no certain wire for a "220 outlet". I know this is a generalization, but I just want to clear this fact up.

Second, are you SURE it is NM-B and not UF? They look amazingly alike, especially when filthy.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
The Following 2 Users Say Thank You to Speedy Petey For This Useful Post:
J. V. (05-28-2012), plummen (05-27-2012)
Old 05-26-2012, 02:48 PM   #10
Master Electrician
 
Join Date: Mar 2010
Location: Toronto Ontario
Posts: 1,165
Rewards Points: 500
Default

220 Exterior Wiring being spliced


our underground wire up here is labelled nmwu for the most part. It's almost identical to regular nm except for a little thicker exterior rubber. It's generally black in color and indoor is generally white. You can incase it in conduit but it's not necessary although it will affect the depth it needs to be buried at. Personally if your going to run a conduit then do as the others have suggested and run thwn single conductors. Much cheaper.
__________________
Sarcasm is my friend
I'm here to learn too, i do mostly commercial/industrial/new construction and this place is a great way to pick up tips on residential from some good electrical minds. Excuse the spelling, my phone has a mind of it's own.
andrew79 is offline   Reply With Quote
Old 05-27-2012, 10:03 AM   #11
Newbie
 
Join Date: May 2012
Posts: 5
Rewards Points: 10
Default

220 Exterior Wiring being spliced


I don't really understand everything you all said completely, however I will keep the information so that I can refer to it when the worker comes back this week. I really appreciate the advice thank you for your time and expertise.
kmatthews is offline   Reply With Quote
Old 05-27-2012, 05:40 PM   #12
Electrical Contractor
 
rrolleston's Avatar
 
Join Date: Oct 2011
Location: Granville, NY
Posts: 1,941
Rewards Points: 1,000
Send a message via AIM to rrolleston Send a message via Yahoo to rrolleston
Default

220 Exterior Wiring being spliced


How deep was this buried?
__________________
With Electricity there is the right way to do it and the dead way. Just because it works does not make it safe.
rrolleston is offline   Reply With Quote
Old 05-27-2012, 05:56 PM   #13
Newbie
 
Join Date: May 2012
Posts: 5
Rewards Points: 10
Default

220 Exterior Wiring being spliced


It's buried only about 6 inches.
kmatthews is offline   Reply With Quote
Old 05-27-2012, 06:13 PM   #14
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 7,712
Rewards Points: 2,222
Default

220 Exterior Wiring being spliced


Normal burial depth would be 12" if GFI protected and 20 amps or less, or 18".
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
The Following User Says Thank You to Jim Port For This Useful Post:
Code05 (05-27-2012)
Old 05-27-2012, 07:32 PM   #15
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,867
Rewards Points: 2,038
Default

220 Exterior Wiring being spliced


Quote:
Originally Posted by kmatthews View Post
It's buried only about 6 inches.
No way this was done by any qualified electrician.

__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
The Following 4 Users Say Thank You to Speedy Petey For This Useful Post:
Code05 (05-27-2012), frenchelectrican (05-27-2012), J. V. (05-28-2012), Jim Port (05-27-2012)
Reply

Tags
220, amperage, electrical lines, safety, splicing


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Valid reasons why ground wires in a j-box would not be spliced together? buckybadger Electrical 6 12-12-2011 11:42 AM
max # of gauge AWG14 spliced amakarevic Electrical 4 11-03-2011 11:49 AM
Can garage feeder be spliced to SE once inside? WillK Electrical 5 05-27-2011 07:02 AM
Replacing Spliced Knob and Tube fromscratch Electrical 6 05-24-2011 08:04 AM
run spliced lamp cord inside a wall? denemante Electrical 20 12-17-2010 09:35 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.