IEC 60331-1:2018 着火条件下电缆的试验.电路完整性.第1部分:额定电压0.6/1.0千伏及以下总直径超过20毫米的电缆在至少830℃的温度下受冲击着火的试验方法

标准编号：IEC 60331-1:2018

中文名称：着火条件下电缆的试验.电路完整性.第1部分:额定电压0.6/1.0千伏及以下总直径超过20毫米的电缆在至少830℃的温度下受冲击着火的试验方法

英文名称：Tests for electric cables under fire conditions - Circuit integrity - Part 1: Test method for fire with shock at a temperature of at least 830°C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter exceeding 20 mm

发布日期：2018-03-28

标准范围

新的！IEC 60331-1:20 18作为IEC 60331-1:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60331-1:20 18规定了在规定条件下遭受火灾和机械冲击时需要保持电路完整性的电缆的测试方法。本文件适用于额定电压不超过600 V/1 000 V的电缆，包括额定电压低于80 V的电缆、金属数据和电信电缆以及光纤电缆。它旨在测试总直径大于20 mm的电缆。直径较小的电缆预期使用IEC 60331-2的设备、程序和要求进行测试。本文件包括与额定电压不超过600 V/1（含600 V/1）的电力和控制电缆相关的具体故障点、连续性检查安排、测试样品、测试程序和测试报告的详细信息000 V。IEC 60331-1未给出与金属数据、电信电缆和光纤电缆相关的具体故障点、连续性检查安排、测试样品、测试程序和测试报告的详细信息。虽然范围仅限于额定电压不超过0,6/1,0 kV的电缆，但经制造商和买方同意，该程序可用于额定电压不超过1,8/3（3,3）kV的电缆，前提是使用合适的保险丝。第二版取消并取代了2009年出版的第一版。它构成技术修订。与上一版相比的重大技术变更如下:-将范围扩展至包括金属数据和电信电缆以及光纤电缆，尽管与金属数据和电信电缆以及光纤相关的具体故障点、连续性检查安排、测试样本、测试程序和测试报告的细节e IEC 60331-1未给出电缆；-改进了对测试环境的描述；-具有两个额外垂直元件的改进的钢测试梯，以适应无同心金属层的单芯电缆的改进测试和正常使用中弯曲半径大于约400毫米的电缆的测试；-强制使用质量流量计/控制器作为精确控制燃料和空气到燃烧器的输入流速的手段；-改进了测试报告中包含的信息的描述。

NEW!IEC 60331-1:2018 is available as IEC 60331-1:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60331-1:2018 specifies the test method for cables which are required to maintain circuit integrity when subject to fire and mechanical shock under specified conditions. This document is applicable to cables of rated voltage not exceeding 600 V/1 000 V, including those of rated voltage below 80 V, metallic data and telecom cables and optical fibre cables. It is intended for use when testing cables of greater than 20 mm overall diameter. Cables of smaller diameter are intended to be tested using the apparatus, procedure and requirements of IEC 60331-2. This document includes details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to electric power and control cables with rated voltage up to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to metallic data and telecom cables and optical fibre cables are not given by IEC 60331-1. Although the scope is restricted to cables with rated voltage up to and including 0,6/1,0 kV, the procedure can be used, with the agreement of the manufacturer and the purchaser, for cables with rated voltage up to and including 1,8/3 (3,3) kV, provided that suitable fuses are used. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. The significant technical changes with respect to the previous edition are as follows:
– extension of the scope to include metallic data and telecom cables and optical fibre cables, although details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to metallic data and telecom cables and optical fibre cables are not given by IEC 60331-1;
– improved description of the test environment;
– modified steel test ladder with two extra vertical elements to accommodate the modified testing of single core cables without concentric metal layer and the testing of cables with a bending radius in normal use larger than approximately 400 mm;
– mandatory use of mass flow meters/controllers as the means of controlling accurately the input flow rates of fuel and air to the burner;
– improved description of the information to be included in the test report.

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