BS EN 3475-603-2011 航空航天系列.航空器用电缆.试验方法.耐湿电弧痕迹性

标准号：BS EN 3475-603-2011
中文标准名称：航空航天系列.航空器用电缆.试验方法.耐湿电弧痕迹性
英文标准名称：Aerospace series. Cables, electrical, aircraft use. Test methods. Resistance to wet arc tracking
标准类型：K13
发布日期：2011/6/30 12:00:00
实施日期：2011/6/30 12:00:00
中国标准分类号：K13
国际标准分类号：49.060
引用标准：EN 2350;EN 3197;EN 3475-100;EN 3475-302;A-A-52083
适用范围：This European standard specifies a method of assessing the behaviour of cable insulation subject to anelectric arc initiated and maintained by contaminating fluid along the surface of the insulation.This standard shall be used together with EN 3475-100.The primary aim of this test is: to produce, in a controlled fashion, continuous failure effects, which are representative of those, whichmay occur in service when a typical cable bundle is damaged and subjected to aqueous fluidcontamination. Electrical arcing occurs along the surface of the insulation between damage sites onadjacent cables; and to examine the aptitude of the insulation to track, to propagate electric arc to the electrical origin.Originally defined for 115 Vac network, this test also proposes conditions for 230 Vac network. Unlessotherwise specified in product standard, only 115 Vac conditions shall be satisfied.Six levels of prospective fault current have been specified for concerned cable sizes (see Clause 7). It isagreed that sizes larger than 051 need not be assessed since the short-circuit phenomenon becomesdominant at low line impedances.Unless otherwise specified in the technical/product standard sizes 002, 006 and 020 cable shall be assessed.