ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Photo Editing Software?
by Fridayrack - 12/03/21 05:05 AM
Square D "All-In-One" Panelboard
by NORCAL - 11/30/21 12:48 PM
Where is Everyone?
by luckyshadow - 11/21/21 10:14 AM
It's been an interesting career
by The Watt Doctor - 11/19/21 09:56 AM
Well I am back to stay (nearly 6 years)
by The Watt Doctor - 11/19/21 09:17 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
1 members (Scott35), 18 guests, and 11 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#11641 07/17/02 04:48 PM
Joined: Feb 2001
Posts: 308
S
Steve T Offline OP
Member
I recently have dealt with a contractor who has rolls of wires that are mislabeled. The rolls are labels #14 THHN stranded. The actual labeling on the insulation says #16 type TFFN or MTW. I am not going to allow the wire to be used, but the insualtion sure looks like THHN. the insulation appears to be a bit thicker than #14 THHN but I'm not sure if this is just a variance that may occur in the manufacturing process. I easily spotted some THHN #16 this contractor accidently( I hope) used before, but this # 16 was hard to tell without reading the labeling on the insulation.

I have told the contractor to have his guys read the insulation not the roll but the accident happens anyways.

Several questions--

Has anyone seen this occurence of mislabeling?

Is there an easy way to determine all the different insulation types? some are fairly similar looking.


I am going to notify the manufacturer of this occurence and see if they have knowledge of a bad batch of labeled wire or if this could be an isolated incident.

And just in case anyone was asking themselves if the contractor might be trying to pull a fast one, I saw what appeared to be full rolls from the manufacturer, but you just never know.

#11642 07/20/02 06:44 AM
Joined: Dec 2000
Posts: 218
S
Member
Steve, NFPA 79 is the standards for machinery reg. I thought at one time they could be viewed on the web but all I got was that they had to be bought. Hope this helps.

#11643 07/30/02 11:26 PM
Joined: Feb 2001
Posts: 308
S
Steve T Offline OP
Member
If this is a dumb question please let me know.

#11644 07/31/02 06:45 AM
Joined: Apr 2002
Posts: 197
G
Gwz Offline
Member
310.1

310.11

310.12

310.13 and

Table 310.13 (Application Provisions) column.

Are some sections.

[This message has been edited by Gwz (edited 07-31-2002).]


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
richard
richard
L.I. New York
Posts: 99
Joined: August 2003
Top Posters(30 Days)
dsk 2
NORCAL 1
Popular Topics(Views)
286,557 Are you busy
218,974 Re: Forum
205,093 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5