This National Standard of Canada is based on International Standard CEI/IEC 491:1984. 1. Scope 1.1 This standard applies to the following electronic flash apparatus for
photographic purposes, having a stored energy not exceeding 2 000 J, together
with associated apparatus and not intended to be subjected to dripping or
splashing: - apparatus of the single-flash type which can have more than one flash head
operating at the same time;
- apparatus for the illumination of sequential photographic exposures;
- battery chargers and supply units to be used in connection with electronic
flash apparatus for photographic purposes. These auxiliary units may form a
part of the mains plug;
- accessories, such as light regulators and slave units, specified in the
instruction leaflet. This standard does not apply to stroboscopes. As long as no appropriate requirements exist for apparatus having a stored
energy exceeding 2 000 J, this standard may be used, in so far as it is
applicable.
Additional requirements may be necessary, e.g. for explosion and thermal
radiation. With regard to the supply, the following categories are covered: - mains-operated apparatus;
- battery-operated apparatus;
- apparatus having a combination of mains and battery supply. This standard is intended to cover apparatus which can be used both in moderate
and tropical climates. For the modelling lamps combined with electronic flash apparatus for
photographic purposes, additional requirements may be taken from IEc
Publication 598-2-9: Luminaires, Section Nine - Photo and Film Luminaires
(Non-professional), as far as applicable. This Standard applies to the safety of such equipment designed to be installed
and used in accordance with the rules of the Canadian Electrical Code (CEC),
Part I.
Note: Manufacturers designing products for use in Canada may find a helpful
summary of the equipment-related requirements of the CEC, Part I, in CSa
Publication Spe-2000. 1.2 This standard does not apply to apparatus designed for a rated supply
voltage exceeding 250 V (r.m.s.) against earth. 1.3 This standard is concerned with safety only and not with the other
properties of the apparatus (see Clause 3).