ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Do we need grounding?
by tortuga - 03/18/24 08:39 PM
240V only in a home and NEC?
by tortuga - 03/18/24 04:29 PM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
Test Post
by sabrown - 03/06/24 05:29 PM
Solar PV Wiring Errors
by renosteinke - 03/02/24 09:12 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (Scott35), 92 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#185449 03/14/09 11:53 PM
Joined: Jan 2004
Posts: 1,507
G
Member
I inspected a Kohler steam unit for a sauna and the directions on the cover for the J-box says 105° wire terminations. Not enough detail for me to go on so I asked the contractor to use 105° wire for the final connection on the unit. Has anyone run into this before? The installation manual is silent on this and the nameplate says use #6 copper wire and install on a 70a. circuit breaker. I don't see a problem with the circuit since it is a heating unit but I guess the contractor is having trouble finding 105° #6 wire.



George Little
Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

Joined: Aug 2007
Posts: 853
L
Member
Isn't all THHN 105 c rated?

Joined: Dec 2000
Posts: 4,294
Member
THHN is rated for 105°C only when used in dry locations, when rated AWM, and used as appliance wiring material.

Joined: Jan 2005
Posts: 5,445
Likes: 2
Cat Servant
Member
I have encountered a similar situation with some HID lighting fixtures.

While I can generally come into the fixture with THHN, and use the two-color Scotch wire nuts (which are 105 rated), without trouble .... when in doubt, I place another box a foot or so away from the fixture,and run a pigtail of fiberglass insulated wire. Such wire is available in appliance parts stores.

Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
I've run into this also, usually with light fixtures. My electrical supplier carries type SA wire which is silicone insulated with a fiberglass jacket, rated 200C for dry locations. It is a little pricey, so I too use a j-box nearby to make the transition. Most wirenuts I've encountered are rated for the 105 degree temperature.


Few things are harder to put up with than the annoyance of a good example.

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5