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.