1 Scope
This clause of Part 2-1 is replaced by the following:
This collateral standard applies to HBES switches with a working voltage not exceeding
250 V a.c. and a rated current up to and including 16 A. for household and similar
fixed electrical installations either indoors or outdoors and to associated electronic
extension units.
It applies
-
- to HBES switches for the operation of lamp circuits and the control of the brightness
of lamps (dimmers) as well as the control of the speed of motors (e.g. those used
in ventilating fans) and for other purposes (e.g. heating installations),
-
- to sensors, actuators, switched-socket-outlets, associated electronic extension units,
etc
In the following document the word " HBES switch " is applied to describe all kind of HBES devices
e.g. switches, sensors, actuators, switched-socket-outlets, associated electronic
extension units, etc.
The operation and control are performed
-
- intentionally by a person via an actuating member, a key, a card, etc., via a sensing
surface or a sensing unit, by means of touch, proximity, turn, optical, acoustic,
thermal,
-
- by physical means, e.g. light, temperature, humidity, time, wind velocity, presence
of people,
-
- by any other influence;
and transmitted
-
- by an electronic signal via several media, e.g. powerline (mains), twisted pair, optical
fibre, radio frequency, infra-red, etc…
HBES Switches complying with this standard are suitable for use at ambient temperatures
not normally exceeding 25 °C, but occasionally reaching 35 °C.
Functional safety aspects of HBES switches are not covered by this standard. Functional
safety requirements shall be covered by the standards of the devices which are controlled
by the HBES.
In locations where special conditions prevail, e.g. higher temperature, special constructions
may be required.
NOTE 1 This annex is not intended to cover devices falling within the scope of IEC 60730.
NOTE 2 Electronic switches without a mechanical switch in the main circuit do not provide
a "full off-state". Therefore, the circuit on the load side should be considered to
be live.
NOTE 3 HBES-switches to be connected to telecommunication networks should fulfil the relevant
standard.