International Electrotechnical Commission

Low-voltage switchgear and controlgear – Over-current protective devices – Part 2: Selectivity under over-current conditions - Edition 1.0
 N TR 61912-2

Annotation

This technical report, which serves as an application guide for the determination of selectivity between over-current protective devices of low-voltage switchgear and controlgear, summarises the definitions of the terminology and provides examples of application.

The following standards for devices are considered in this technical report:

- IEC 60255-3; IEC 60255-6; IEC 60255-8, IEC 60255-12

- IEC 60269-1, IEC 60269-2, IEC 60269-3;IEC 60269-4;

- IEC 60898-1;

- IEC 60947 series;

- IEC 61008-1;

- IEC 61009-1.

This report does not deal with other forms of protection, such as power-reversal protection, directional protection and arc-protection systems.

Автоматический перевод:

Низковольтная коммутационная аппаратура и controlgear – защитные устройства Сверхтока – Часть 2: Селективность под перегрузками по току - Издание 1.0