What is PD IEC TR 63139-Mathematical addition of working voltages, insulation between circuits, and use of PELV about?
PD IEC TR 63139 is a standard that serves technical specifications for mathematical addition of working voltages, insulation between circuits, and the use of PELV that enables the prevention of insulation damage and failure. PD IEC TR 63139 is related to the insulation coordination in TC 34 standards and provides explanations on mathematical addition of working voltages, insulation between circuits, use of protective extra low voltage (PELV) and insulation between LV supply and control line conductors in order to cover new technologies associated with the use of LED light sources and controllable products.
PD IEC TR 63139 describes in which way the addition of supply voltages and working voltages can be arranged for an assessment of the electrical insulation requirements (e.g. creepage distances and clearances) in a system if a first failure occurs. PD IEC TR 63139 also describes the possibility to increase immunity and reliability of electronic circuits, used in combination with LEDs, with the use of PELV and the associated safety consequences for this system. PD IEC TR 63139 provides details on the insulation between LV supply and control line conductors, which is an essential safety consideration for a complete installation system.
Who is PD IEC TR 63139-Mathematical addition of working voltages, insulation between circuits, and use of PELV for?
PD IEC TR 63139 on mathematical addition of working voltages, insulation between circuits, and use of PELV applies to:
- Manufacturers of led light sources and controllable products
- Dealers and importers of led light sources and controllable products
- Testing labs for led light sources and controllable products
- Research and development institutions
Why should you use PD IEC TR 63139-Mathematical addition of working voltages, insulation between circuits, and use of PELV?
LEDs are susceptible to voltages that can damage the PN junction. Protective extra-low voltage (PELV) connects the ELV circuit to the earth. Insulation is required for active and accessible conductive parts in circuits to ensure safety in case of failures. Mathematical calculation of the sum of the voltages is more appropriate, reproducible and easy to calculate in case of failures.
PD IEC TR 63139 provides you with a detailed explanation of actual failure scenarios given in IEC 60598-1:2014 and IEC 60598-1:2014/AMD1:2017, Annex X and IEC 61347-1:2015, Clause 15 and provides a rationale behind the protective requirement for each situation.
PD IEC TR 63139 provides you guidance on insulation between circuits, circuits analysis, use of PELV, insulation between LV supply and control line conductors, ensuring the immunity and reliability of electronic systems. Guidance in PD IEC TR 63139 enables you to develop and assess safety mechanisms for LED light sources and controllable products, ensuring operational safety, reliability and longevity by standardization of insulation coordination.
