UL Standard for Safety Electro-Sensitive Protective Equipment, Part 1: General Requirements and Tests First Edition; Reprint with revisions through and including February 27, 2007
This part of IEC 61496 specifies general requirements for the design，construction and testing of ELECTRO—
SENSITIVE PROTECTIVE EQUIPMENT(ESPE)for the safeguarding of machinery Special attention is di rected 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 inte rfaces 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 propedies 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 standa~The requirements for ESPES using active opto—electric protective devices，
e g light curtains a re contained in part 2
This pa rt 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 inju rious to health unless adequate
precautions were taken Conformance with this standard in no way absolves either the SUPPLIER or the user
fmm statutory obligations relating to the safety and health of persons du ring the use of the equipment
covered by this standard