This part of IEC 61496 specifies additional requirements for the design, construction and
testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons or parts of persons as part of a safety-related system, employing active optoelectronic protective devices responsive to diffuse reflection (AOPDDRs) for the sensing
function. Special attention is directed to requirements which ensure that an appropriate
safety-related performance is achieved. An ESPE can include optional safety-related
functions, the requirements for which are given both in Annex A of this document and in Annex A of IEC 61496-1:2012.