Understanding your requirements under Acts, Regulations, and Law is a matter of assessing what is the right thing to do, and the necessary thing to do in order to maintain your "license to operate."
With respect to electrical safety, the electrical hazards of arc flash/blast, and shock must be considered, and managed in order to comply with OH&S or OHSA Regulations in Canada and the United States.
Industry Standards or best practices become the "how to" with respect to ensuring you comply with OH&S Law.
The links provided here can be used to go to Provincial, Territorial. or Federal websites, Associations, and to Standards setting bodies to find out more about them and how the information can be used to ensure you effectively manage electrical safety for your company.