Preface:

This is the first edition of CSA C22.2 No. 250.2, Lighting systems, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.

This Standard contains specific requirements for lighting systems and is intended to be used together with the requirements for luminaires contained in CSA C22.2 No. 250.0.

This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.

Scope:

1.1
This Standard applies to lighting systems equipment that performs a sensing and/or signaling function, to convey data through wired or wireless means to, or from, other components of a field installed lighting system. This equipment is rated at 600 V or less, for commercial, industrial or residential applications, and intended to be installed in non-hazardous locations in accordance with CSA C22.1, Canadian Electrical Code (CE Code), Part I.

1.2
These requirements cover
a) power source equipment, and luminaires that are part of a lighting system;
b) luminaires and its remote components connected to Class 2 power and data communication circuits (power over ethernet); and
c) extra low voltage lighting systems incorporating a power supply, luminaires, and bare or insulated conductors.

1.3
The requirements specified in this Standard are intended to supplement those in other standards, such as listed below, that cover lighting products utilized in lighting systems as applicable:
a) CSA C22.2 No. 37;
b) CSA C22.2 No. 74;
c) CSA C22.2 No. 89;
d) CSA C22.2 No. 166;
e) CSA C22.2 No. 207;
f) CSA C22.2 No. 250.0;
g) CSA C22.2 No. 250.1;
h) CSA C22.2 No. 250.13;
i) CSA C22.2 No. 250.4;
j) CSA C22.2 No. 250.570;
k) CSA C22.2 No. 250.7;
l) CSA C22.2 No. 256; and
m) CSA C22.2 No. 1993.

1.4
This Standard is intended to be used in conjunction with the applicable clauses of CSA C22.2 No. 250.0 and its subsequent revisions.

1.5
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.