ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Upside Down ThreeWay
by gfretwell - 08/12/22 12:30 AM
Load Calcs for EVs and RVs
by gfretwell - 08/12/22 12:24 AM
Wiring method choice
by HotLine1 - 08/10/22 03:39 PM
NEC- 314.23 (H) (1)
by renosteinke - 08/10/22 11:13 AM
RV Forums
by gfretwell - 08/07/22 07:01 PM
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
0 members (), 10 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#36890 04/17/04 02:11 PM
Joined: Jun 2002
Posts: 186
M
mj Offline OP
Member
can any give a simple difference between class 1 ,class 2,class 3 circuits ? art # 725 is almost impossible to understand. and where to apply each class ?

#36891 04/17/04 08:17 PM
Joined: Dec 2003
Posts: 886
H
Member
The difference is that Class 1 will say Class 1 on the device, Class 3 will say Class 3 etc. [Linked Image]

There is no way for you to determine the class of wiring anymore. It is supposed to be printed on all listed transformers and power supplies.

-Hal

#36892 04/17/04 08:51 PM
Joined: Feb 2003
Posts: 939
F
Member
unforeteally ,, the low voltage cables they do have class type stamped on it. is is very common with thermosat wires and intercom wires they will have wire size , numbers of conducter, type and class if have it .

merci , marc


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


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
CharlieE
CharlieE
Indianapolis
Posts: 201
Joined: April 2004
Top Posters(30 Days)
BigB 5
Popular Topics(Views)
294,947 Are you busy
226,583 Re: Forum
211,814 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5