Plugs, connectors, receptacles, and similar wiring devices for use in hazardous locations

1.1
This Standard covers receptacles with attachment plugs; receptacles with attachment plugs interlocked with circuit breakers; receptacles with attachment plugs interlocked with switches; and cable and cord connectors, couplers, and flanged equipment power inlets and flanged equipment power outlets with ratings as specified in Clause 1.2 intended for connection to copper conductors only and for installation and use in the following hazardous locations in accordance with the Rules of Canadian Electrical Code, Part I and CSA M421:

a) Class I, Division 1, Groups A, B, C, and D;
b) Class I, Division 2, Groups A, B, C, and D;
c) Class II, Groups F and G; and
d) Class III.

1.2
This Standard covers

a) Class I, Division 1 and Class II devices rated not more than 600 A or not more than 600 V ac or not more than 250 V dc;
b) Class I, Division 2 devices rated not more than 1200 A and not more than 1000 V ac or not more than 1000 V dc; and
g and receptacle/connector combinations that do not incorporate either a delayed withdrawal, an interlock mechanism or other retaining device.

Note: In this Standard, devices that are classified for Group G locations are acceptable for use in atmospheres containing coal or coke dust.

1.4
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.