本标准规定了评估受到污染流体引发和维持的电弧的电缆绝缘的行为的方法。 本标准应与EN 3475-100一起使用。 这个测试的主要目的是: - 以可控制的方式产生连续的故障效应，其代表当典型的电缆束被损坏并且经受水性流体污染以致在电缆之间发生电弧时可能发生的故障效应;和 - 检查绝缘跟踪的能力，将电弧传播到电气原点。 最初为115 Vac网络定义，该测试还为230 Vac网络提出了条件。除非产品标准另有规定，否则仅满足115 Vac条件。 已经为有关电缆尺寸规定了六级预期故障电流（见第7章）。普遍认为，由于短路现象在低线阻抗下占主导地位，所以不需要更大的尺寸。 除非在技术/产品标准尺寸002,006和020电缆中另有规定，否则应进行评估

This standard specifies a method for appraising the behaviour of cable insulation subjected to an electric arc initiated and maintained by a contaminating fluid. 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 which may occur in service when a typical cable bundle is damaged and subjected to aqueous fluid contamination such that electrical arcing occurs, between 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. Unless otherwise 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 is generally agreed that larger sizes need not be assessed since the short-circuit phenomenon becomes dominant at low line impedances. Unless otherwise specified in the technical/product standard sizes 002, 006 and 020 cable shall be assessed.