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Description / Abstract:
This part of IEC 61496 specifies general requirements for the
design, construction and testing of ELECTROSENSITIVE PROTECTIVE
EQUIPMENT (ESPE) for the safeguarding of machinery. Special
attention is directed to functional and design requirements that
ensure an appropriate safety related performance is achieved. An
ESPE may include optional safety-related functions, the
requirements for which are given in annex A.
The particular requirements for specific types of sensing
function are given in other parts of this standard.
This standard does not specify the dimensions or configuration
of the DETECTION ZONE and its disposition in relation to hazards in
any particular application, nor what constitutes a hazardous state
of any machine. It is restricted to the functioning of the ESPE and
how it interfaces with the machine.
This standard may be relevant to applications other than those
for the protection of persons, for example for the protection of
machinery or products from mechanical damage. In those applications
additional requirements may be necessary, for example when the
materials that have to be recognized by the sensing function have
different properties from those of persons.
This standard does not deal with electromagnetic compatibility
(EMC) emission requirements.
This part of IEC 61496 provides general requirements for ESPES
of various types employing different methods of sensing. The
particular requirements for specific types of sensing function will
be covered in subsequent parts of this standard. The requirements
for ESPES using active opto-electric protective devices, e.g. light
curtains, are contained in part 2.
This part refers to the technical suitability of the
electro-sensitive protective equipment. Its application may require
the use of substances and/or test procedures that could be
injurious to health unless adequate precautions were taken.
Conformance with this standard in no way absolves either the
SUPPLIER or the user from statutory obligations relating to the
safety and health of persons during the use of the equipment
covered by this standard.