AS NZS IEC 60947.5.3:2015 pdf free

AS NZS IEC 60947.5.3:2015 pdf free.Low-voltage switchgear and controlgear
In addition to the EMC requirements of IEC 60947-5-2，this part specifies additional requirements for devices intended to perform safety functions as defined in IEC 61 508 series and derived standards. These additional requirements apply only to the safety related function of the device. These devices, if d.c. powered, shall not be connected to a d.c. distribution network. EMC performance requirements for PDDBs are listed in Table 1.
The functions of the PDDB intended for safety applications are not affected outside their specification or may be disturbed temporarily or permanently if the PDDB reacts on this disturbance in such a way that an OFF-state of the output is maintained or achieved within a stated time and maintained. Destruction of components is allowed if a defined state of the EUT (equipment under test) is achieved within a stated time and maintained.
Where immunity to certain EM phenomena can only be achieved by the use of external devices then those devices are considered for the purposes of this International Standard to be part of the PDDB and the type and installation requirements for these devices shall be stated in the manufacturer’s documentation. If particular installation requirements are necessary to achieve the required functional safety performance (for example, installation in accordance with IEC 60204-1) these requirements shall be stated in the manufacturer’ s documentation. The input power ports of d.c. proximity device(s) that are PELV or SELV powered are not considered as connected to a d.c. distribution network and instead are treated as I/O signal/control ports.
The PDDB shall be designed and validated in accordance with its safety requirements specification and the requirements of IEC 61508 series,IEC 62061,or ISO 13849-1 as appropriate. The requirements for systematic safety integrity (systematic capability), shall be met by following compliance Route 1H or 2H (see 7.4.4.3 of IEC 61508-2:2010) and 1s or 2s  (in accordance with 7 .4.2.12 of IEC 61508-3:2010, as appropriate).
NOTE In IEC 62061:2005, Amendment 1(2012) (Scope, Note 2) it is considered that Route 2H is not suitable for general machinery applications.AS NZS IEC 60947.5.3 pdf free download.