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湿试验淋雨试验解决方案

方案背景

高压电器在户外状态下经常会遭遇淋雨情况，在这种情况下会考验电器外绝缘体的防护性能。在高压电器标准GB/T16927.1-2011中4.4湿试验章节中，对该项防护测试有明文规定，但并无明确的试验设备参考图纸，这对于湿试验喷淋装置的制造造成了困扰。但同时也为所有的试验设备制造商提供了更多机会。岳信公司此次与国网江西省电力科学研究院经过研究探讨，制定出该方案。

该方案由岳信公司自主研发设计，并申请了相关证书。

方案介绍

本设备是湿试验淋雨设备，是根据标准GB/T16927.1-2011在4.4湿试验里面规定，电器产品在出厂前必须经行湿试验检测，以此来检验电器的外壳密封性能。本设备主要用来满足配网设备中户外型35KVA及以下互感器湿试验的技术要求。

湿试验测试方案

【预淋雨】按照湿试验标准淋雨试件至少不间断预淋15分钟，预备淋雨的时间是不能包括调整喷头花洒的时间，也可以用自来水预备淋雨15分钟，然后在试验开始前需要用规定条件的水连续预备淋雨，而且至少为2分钟，测试所有的水必须要在淋雨前就经行测量。

【淋雨量】标准湿试验程序的淋雨条件：在淋雨架下面，所有测量点的平均淋雨率，垂直分量为1.0~2.0mm/min；水平分量为1.0~2.0mm/min。如果单独每次测量每个分量的极限值则为平均值±0.5mm/min。

【主机架】适应不同尺寸的试验样品，架子设计为淋雨板可电动调节上下，为了保证单独每次测量每个分量的极限值则为平均值±0.5mm/min的技术要求，淋雨板设计成可手动调整角度，通过量雨器调试好垂直和水平分量的均匀性好固定好淋雨板的喷水角度。

【喷水头】采用定制型喷头，确保落在试品上的水成滴状(避免雾状),喷头布置为间距100mm*100mm，淋雨板尺寸1100*1100，横向布置10个喷头，纵向布置10个喷头，总共100个喷头，保证淋雨的均匀性。

方案价值

湿试验淋雨试验方案为高压电器品质检测提供了专业的试验条件，可检验高压电器及配件等在自然淋雨状态下的防雨性能。该方案通过旋转装置可调节淋雨角度，满足从垂直方向及水平方向等量的淋雨要求。设备采用纯水做测试，对于测试结果来讲更为真实（电阻率较高，接近于雨水的电阻率）。

行业方案

湿试验淋雨试验解决方案

电话：400-997-0881

E-mail：yxipx@yxipx.com

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