随着英国国内和包括核工业在内的工业市场对电力的需求不断增长,使用中压电缆进行可靠的发电、传输和配电的需求也随之增加。

随着英国城镇和城市的爆炸式发展,以及工业发展和技术依赖于持续供应的增长,对电力的需求从未如此之大。

中压电缆

随着未获批准的电缆不断出现,进入市场的中压(MV)电缆应该得到独立的批准和认证,就像在现代建筑开发中安装高质量产品的压力一样。raybet炉石传说

事实上,对可靠供应的新需求不断出现在电网上,而塞拉菲尔德和Capenhurst等地核电站的发展只会增加对在整个供应链中使用经批准的产品进行可靠供应的需求。raybet炉石传说

对电网的可靠供电不断提出新的要求

供应链应特别注意将这些电缆应用到诸如医院、主要工业站点和服务于基础设施站点的变电站等高风险环境中。

MV电缆是我们的基础设施至关重要。电力离开现场发电,并通过升压变压器被送到把它上升到400千伏,275Kv及132KV的国家电网配电电压。一旦在局部区域,供应经过降压变压器降低电压,以415V与230V分出国内供应。

功率大容量

为了方便电力在全国电网内流动,全国有近4500英里的架空线路、近1000英里的地下电缆和342个电网变电站。断电后,电力以较低的电压(通常是66Kv、33Kv和11Kv)分配到本地网络。共有14家持有牌照的地区网络运营商(DNOs)。

很多时候,向消费者提供的大量电力通过分站输送到大型场所,如工业设施、医院和教育机构。为了给分站提供电力-通常位于他们提供电力的场所-使用中压(MV)电缆。

MV电缆只开发为电压的水平增加,需要出现一个更大的分级范围。

发展中市场

市场规模已经发展到2016年全球MV电缆市场价值为393.1亿美元,预计到2022年将以超过6%的速度增长。

电缆本身的技术设计和规格在配电网中是至关重要的。

MV电缆的AEI电缆范围满足BS6622, BS7835和iec60502的所有要求,并且所有范围为33kV的第三方认可机构BASEC批准和认证。

需要考虑的技术因素有很多,包括安装的大小,安装相对于网络的位置,雷竞技下载官方版以及是否存在一次和二次分站。

未经批准布线

在安装之前,还应进行详细的路线勘测,以规划电缆连接的位置,并确定可能需要进行定向钻探等特殊土木工程的任何障碍物。

基于这些服务类型的供应的关键性质,未经批准的电缆的发生率还在继续,因此在这些重要和敏感的环境中应用MV电缆变得至关重要。

在这些环境中,第一次就做好就更加重要了

最近,市场上出现了许多未经批准的电缆,但在这种环境下,第一次就把它弄对更重要,从而降低任何出错的风险和成本。

寻找英国标准,欧洲标准或国际标准号,制造商标志和第三方许可标志。即使有斑纹,这是值得一试,因为一些标签和邮票已被盗用。

电缆可能变得无法追踪

没有标记但没有检查的电缆会变得无法追踪,所以承包商在接收时每次检查都是很重要的。还要保持购买和交付的记录,以确保正在安装的是最初指定的。

做这些检查是非常值得的,特别是当这些电缆被埋起来并依靠提供持续的电力供应。在许多情况下,电缆甚至被铺设到海底,以避免在向土地所有者申请许可时冗长而昂贵的拖延。

有些电缆提供了一层铠装层,以帮助防止损坏,无论安装在地面以下或以上,一般用于工业应用。铠装还可以保护电缆在存储、运输和安装期间。金属铠装总是在电路的一个或多个点上接地,因此可以作为保护导体携带接地故障电流。

广泛的测试

设计用于UK公用利用现代聚合绝缘LV和MV电缆通常不铠装,但在外护套下有铜线的同心层。

在地下电缆故障是非常昂贵的修复,特别是电缆在道路和人行道安装。

修复一个故障可能涉及切断故障的两端的一段电缆,并安装一个新的长度和接头连接到现有的电缆。MV电缆要经过大量的材料测试和电气测试,包括交流电压和局部放电。

MV电缆要经过大量的材料测试和电气测试

供应行业

在AEI电缆,我们的产品提供给世界范围内的建筑、工raybet炉石传说业、消防、国防、采矿和铁路行业,满足BS 6622和BS7835以及最高相关雷竞技在哪里下载行业标准的要求,包括ISO 9001、ISO 14001和ISO 18001,范围为500kV。

这些产品也被raybet炉石传说国内和国际领先的独立批准机构批准,包括BASEC, LPCB和劳埃德。第三方批准证明他们可以通过严格的测试,在他们将运行的条件下。

对MV电缆的需求持续高质量,可以持续提供电力,以满足日益增长的挑战,无论其形式是什么。

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作者简介

格雷厄姆。特纳
格雷厄姆。特纳全国销售经理,AEI电缆有限公司

格雷厄姆·特纳拥有超过40年的电缆和防火电缆领域的经验,并在他的领域公认的专家。雷竞技在哪里下载格雷厄姆已经看到了产业从两侧开始作为在约克郡供电局当学徒,然后于1978年加入AEI线缆他的技术团队在AEI电缆的一名高级成员在建设提供咨询和顾问,以广泛的组织,工业及相关领域。同时他还对一些举措,以促进整个行业的最佳实践。

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