ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Chinese wire symbols?
by Texas_Ranger. 05/19/19 03:09 PM
Pool - Daisy chained GFCI
by gfretwell. 05/18/19 01:30 PM
110.26 working clearances
by HotLine1. 05/14/19 02:08 PM
Parallel SER Cables
by George Little. 05/03/19 05:42 PM
Norwegian power?
by dsk. 05/03/19 04:30 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 15 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
box fill #188580
08/19/09 02:00 AM
08/19/09 02:00 AM
T
twh  Offline OP
Member
Joined: Mar 2004
Posts: 947
Regina, Sask.
A box contains:
a) wires of different sizes (for example #12 which requires 28.7 ml and #8, which requires 45.1 ml), and
b) a couple pairs of wire connectors, and
c) a flush mounted device of less than 2.54 cm,.

The #12 wires are connected to the #8 wires and the device is connected to a circuit with tails of #14 wire, which require 24.6 ml each, but aren't counted because they don't leave the box.

When I deduct the number of wire allowed in the box for wire connectors, can I reduce the number of #12 wires allowed? If the code doesn't specify, it must be my choice.

Can I deduct the #14 wire from the allowable fill, because the device is connected by that size of wire?

Tools for Electricians:
Re: box fill [Re: twh] #188661
08/23/09 10:35 AM
08/23/09 10:35 AM
E
Eddy Current  Offline
Member
Joined: Sep 2006
Posts: 111
Ontario,Canada
Only makes sense that the biggest wire be deducted. You have to use a bigger wire nut on bigger wire which takes up more space in the box.


Re: box fill [Re: Eddy Current] #188669
08/23/09 10:47 PM
08/23/09 10:47 PM
T
twh  Offline OP
Member
Joined: Mar 2004
Posts: 947
Regina, Sask.


Featured:

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

 

Member Spotlight
NickD
NickD
Amish Country, PA
Posts: 46
Joined: March 2013
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
255,091 Are you busy
191,195 Re: Forum
180,951 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.022s Queries: 15 (0.005s) Memory: 0.9510 MB (Peak: 1.0755 MB) Zlib enabled. Server Time: 2019-05-22 01:07:02 UTC