Originally Posted By: Tony Moscioni
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Joey,
Let's take a moment and review CSA Standard CAN/CSA-C22.2 No. 144-M91
(Reaffirmed 2003)
Ground Fault Circuit Interrupters.
4.3 Supply and Load Connections
4.3.1 Receptacles for Load Connections
4.3.3 Portable Interrupters
4.3.3.1
The power supply cord shall comply with the following:
(a) except for an interrupter of the direct-plug-in type, a suitable length of flexible cord terminating in an attachment plug shall be provided for connection to the supply circuit;
(b) the flexible cord shall be a type which is approved as suitable for hard usage and for the locations in which the interrupter is intended to be used;
(c) the ampacity of the power supply cord shall be not less than the current rating marked on the interrupter;
(d) the current rating of the attachment plug shall be not less than the current rating marked on the interrupter;
(e) a power supply cord shall be permanently attached or a separate cord set terminating in a suitable detachable means of connection shall be provided;
(f) the cord shall be separately insulated from exposed metal parts at the point where it enters the equipment;
Note: The jacket on a cord is not considered as supplementary insulation.
(g) strain relief shall be provided for a permanently attached cord by a suitable cord grip which shall prevent twisting and movement of the cord. The strain relief shall comply with the test requirements of Clause 6.10;
(h) a metal strain relief clamp shall not be accessible, and shall not make contact with an accessible non-current-carrying metal part unless the clamp is suitably insulated from the cord;
(i) the attachment plug shall be a molded-on type or shall have the cord conductor connections sealed by a suitable material to prevent displacement of the cord conductors within the attachment plug;
(j) if the interrupter is designed to provide for grounding of non-current-carrying parts of loads to be supplied from it, the power supply cord shall have a grounding conductor which is coloured green, or green / yellow and is connected to the grounding contacts of all receptacles of the interrupter.
How many defects can you see now with your proposal?
Regards,
Tony Moscioni
Electrical Inspector
Electrical Safety Authority
Toronto, Ontario