User's Manual

301UM0031_01 TD136 Enhanced Vehicle Detector User Manual Page: 26 of 29
APPENDIX B – INSTALLATION OUTDOORS
Appendix B.1 IEC 60950-22:2005 – Outdoor cabinet
If the PD136 Enhanced Detector is to be installed outdoors it must be installed in a
cabinet / housing that complies with the requirements of IEC 60950-22:2005 for a
minimum of pollution degree 2.
Appendix B.2 IEC 60950-22:2005 - Northern Europe
To achieve outdoor operation down to -50 °C as requ ired by IEC 60950-22:2005 for
Northern Europe (Finland, Norway and Sweden) a heater with a thermostat must be
included in the cabinet that houses the PD130 Enhanced Detector.
Appendix B.3 IEC 60950-1:2005 – Overvoltage Category
If the unit is likely to be exposed to transient overvoltage greater that IEC 60950-1
Overvoltage Category II additional protection must be provided external to the unit on
the supply lines.