GB/T 18859-2016 in English

《GB/T 18859-2016封闭式低压成套开关设备和控制设备 在内部故障引起电弧情况下的试验导则》由TC266（全国低压成套开关设备和控制设备标准化技术委员会）归口，主管部门为中国电器工业协会。

Scope

This standard gives guidance on the test methods for complete equipment in the case of arcing in the air due to internal faults. The purpose of this test is to evaluate the ability of the ASSEMBLY to limit the risk of personal injury caused by an internal arc fault, the risk of damage to the ASSEMBLY, and its suitability for continued use. The test procedures provided in this standard are only applicable to: --Enclosed, floor-mounted or wall-mounted low-voltage switchgear and control equipment in accordance with GB 7251.12 (Complete Power Switching and Control Equipment PSC Complete Equipment). --The condition that the doors and covers of the complete equipment are closed and properly secured. This standard can be used as a guidance document when users and manufacturers agree on different or more severe test conditions. The test procedures given in this standard shall take into account: -- the influence of internal overpressure acting on covers, doors, etc.; . The test procedures given in this standard do not include: - other effects that could constitute a hazard, such as toxic fumes and noise; - during maintenance work, opening doors or similar situations; - access to the top and bottom of the ASSEMBLY. This test is a voluntary test by the manufacturer.