ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Calling all Non-US members!! (Non-US only)
by HotLine1. 06/13/18 01:50 PM
GE Lighting Recalls LED Tube Lamps
by Admin. 06/12/18 09:32 PM
Ketra Recalls Recessed Downlights
by Admin. 06/12/18 09:17 PM
diazed fuses
by Texas_Ranger. 06/11/18 07:31 AM
soda can fuse from UK, facebook
by wa2ise. 06/06/18 11:02 PM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 40 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
517.13 (A)Care Facility Grounding #204952
01/24/12 12:59 PM
01/24/12 12:59 PM
W
wewire2  Offline OP
Member
Joined: Nov 2002
Posts: 244
California
The commentary after 517.13(A)
reads "the second component in this approach is the separate insulated grounding conductor required by 517.13 (B. therefore, the metal raceway or metal cable or sheath must qualify as an equipment grounding conductor in accordance with 250.118, INDEPENDENT of any separate wire-type equipment grounding conductor."
Shouldn't it read "in addition to?" The way it reads seems to require the insulated conductor to be isolated back to the the panel and not bonded in the box as a parallel grounding method.

2017 / 2014 NEC & Related Books and Study Guides
Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204956
01/24/12 10:22 PM
01/24/12 10:22 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,973
Brick, NJ USA
Point made & taken. Perhaps a 'bad' use of the word 'independent'.

Logic, is an insulated EGC and an approved metalic wiring method.



John
Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204969
01/25/12 11:24 PM
01/25/12 11:24 PM
W
wewire2  Offline OP
Member
Joined: Nov 2002
Posts: 244
California
Thanks for the affirmation John.

Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204970
01/25/12 11:56 PM
01/25/12 11:56 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,973
Brick, NJ USA
It would be interesting to see if we get any other responses. Maybe George? Greg?


John
Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204971
01/26/12 12:29 AM
01/26/12 12:29 AM
Y
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 840
Michigan
Doesn't 250.48 Cover that??Since its not referred to as an
isolated ground as in 250.146(D)
Yoopersup

Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204972
01/26/12 12:30 AM
01/26/12 12:30 AM
Y
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 840
Michigan
Should be 250.148 Not 250.48 Opps

Re: 517.13 (A)Care Facility Grounding [Re: wewire2] #204977
01/26/12 03:02 AM
01/26/12 03:02 AM
W
wewire2  Offline OP
Member
Joined: Nov 2002
Posts: 244
California
Thanks Yoop
Yes,It's standard procedure to crimp the grounds together and land them in the box that contains a non I.G. device or a splice. In using the dictionary definition below, the wording in the NEC commentary is correct. Both systems can still be referred to as functionally independent even though they are connected. I now know that independent does not necessarily mean separate. Live and learn huh!!


Independent: Not dependent on anything else for function, validity, etc.; separate two independent units make up this sofa


Featured:

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

 

Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Show All Member Profiles 
Top Posters(30 Days)
twh 5
Popular Topics(Views)
247,603 Are you busy
184,937 Re: Forum
174,165 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.037s Queries: 15 (0.008s) Memory: 0.9848 MB (Peak: 1.1400 MB) Zlib enabled. Server Time: 2018-06-20 01:40:25 UTC