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PD IEC TR 63139:2018

PD IEC TR 63139:2018

Current

Current

The latest, up-to-date edition.

Explanation of the mathematical addition of working voltages, insulationbetween circuits, and use of PELV, in TC 34 standards

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

25-10-2018

Publisher

British Standards Institution

This document 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.

This document 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.

It 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.

Furthermore the 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 are explained in greater detail and the rationale behind the protective requirement for each situation is given (e.g. possible LV primary to ELV secondary does not lead to an overburden of the insulation in the second circuit).

This document 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.

The insulation between LV supply and control line conductors is also important and this document explains why this is an essential safety consideration for a complete installation system.

Committee
CPL/34
DocumentType
Standard
ISBN
9780580989230
Pages
22
ProductNote
THIS STANDARD ALSO REFERS :- IEC 604491
PublisherName
British Standards Institution
Status
Current

Standards Relationship
IEC TR 63139:2018 Identical

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Hardcopy - English
PDF - English
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