ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Ronald and Nancy Reagan in GE commercials
by Bill Addiss. 03/13/19 08:12 PM
Carflex in an RNC connector?
by gfretwell. 03/12/19 05:21 PM
Reverse-feeding transformer in PV system?
by HotLine1. 03/11/19 08:37 AM
Vintage stage lighting and equipment catalogs
by Albert. 03/09/19 06:21 PM
TJX Recalls Heating Pads
by Admin. 03/08/19 09:33 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
2 registered members (cableguy619, HotLine1), 33 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Montreal Electrical Requirements #102761
10/25/06 10:57 AM
10/25/06 10:57 AM
MGD  Offline OP
Junior Member
Joined: Oct 2006
Posts: 1
Oxford, CT USA
My company has just secured a contract for Montreal. I'm having a tough time getting information on the electrical requirements for Control Panels. Does anyone know if they require CUL or any additional CSA certification? Also, what is the nominal three phase voltage in the Quebec province. I'm hearing both 575 and 600VAC, are these interchangeable?

We will hire a local contractor for the installation but the control panel will be manufactured here in the US. If anyone has any information on the requirements it would be helpful.

Tools for Electricians:
Re: Montreal Electrical Requirements #102762
10/25/06 12:52 PM
10/25/06 12:52 PM
mikesh  Offline
Joined: Jun 2006
Posts: 613
Victoria, BC, Canada
You might wand a quick view of the post on extra low voltage wiring for a long explanation of approvals.

If the factory that supplies the control cabinet has a product approval agent Like UL they should be able to apply a Canadian Standard and apply an approval label Like cUL to the cabinet before it leaves the factory. Otherwise you will need to have an on site product approval done in Montreal. I am in BC so cannot help with Montreal conditions or inspection athorities. From the US UL and CSA should be able to help at the factory.
Nominal voltage is 600/347 and 575 is covered at 600. the other nominal Canadian voltages are 120/208 120/240. all those are from grounded systems. 277/480 is a nominal US voltage and there is lots of US made equipment in Canada supplied with 480 volts.
If the location of the work is supplied from an ungrounded system then the voltage will be 600 volts with no 347(voltage from phase to grounded circuit conductor) I mention this in case you have any control transformers with a 347 volt primary which won't work very well if the supply is ungrounded.


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


Member Spotlight
Berkley, MA
Posts: 144
Joined: March 2008
Show All Member Profiles 
Top Posters(30 Days)
Admin 9
Albert 3
Popular Topics(Views)
253,832 Are you busy
190,298 Re: Forum
179,992 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.021s Queries: 14 (0.005s) Memory: 0.9435 MB (Peak: 1.0558 MB) Zlib enabled. Server Time: 2019-03-18 17:53:32 UTC