Health and Safety Advisory

Working Live

The following are the only circumstances when working on or near exposed energized parts of electrical equipment is permitted, according to Section 191 of the Construction Regulation (Ontario Regulation 213/91):

1.  When diagnostic testing needs to be carried out;

2.  When it is not reasonably possible to disconnect the equipment, installation, or conductor from the power supply before working on or near the exposed energized parts; or,

3.  When the equipment, installation, or conductor is rated at 600 volts or less, and if disconnecting the power would create a greater hazard to a worker than proceeding without disconnecting it.

Click here to read this health and safety advisory distributed by the Construction Safety Association of Ontario.