75千瓦用多大的铝芯电缆
如果是三相的电机的话得用50平方的铜蕊线。75kw的电动机额定电流在150安培左右,可以使用250安培的空气断路器<br><h3>全部个回答</h3><br><img><br>如果是三相的电机的话得用50平方的铜蕊线。<br>小熊加旺旺 昨天6:38<br><img><br>75kw的电动机额定电流在150安培左右,可以使用250安培的空气断路器。和70平方毫米以上的铜质电缆,或者使用95平方毫米以上的铝质电缆<br>白骨精6699 昨天8:42<br><img><br>
BS 7540-1-2005<br>电缆.额定电压不超过450/750V的电缆使用指南.一般指南已作废<br><h3>Electric cables - Guide to use for cables with a rated voltage not exceeding 450/750 V. General guidance</h3><br>非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 BS 7540-1-2005 前三页,或者稍后再访问。<br>如果您需要购买此标准的全文,请联系:<br>注意:点击下载后,生成下载文件时间比较长,请耐心等待......<br>非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 BS 7540-1-2005 前三页,或者稍后再访问。<br>注意:点击下载后,生成下载文件时间比较长,请耐心等待......<br>购买全文,请联系:<br>标准号中国标准分类号国际标准分类号发布单位<br>GB-BSI<br>代替标准<br>适用范围<br>This part of BS 7540 provides general guidance for the safe use of electric cables with a rated voltage not exceeding 450/750 V. It is applicable to those cables that are specified in BS 638-4, BS 6004, BS 6007, BS 6500, BS 7211 and BS 7919. NOTE 1 These British Standards specify requirements for two categories of cable type. For cable types specified in Harmonized Documents HD 21 and HD 22 as implemented in these British Standards, specific guidance is given in BS 7540-2. For cable types specific to the United Kingdom that are specified in these standards but not included in HD 21 or HD 22, specific guidance is given in BS 7540-3. The guidance given in this part of BS 7540 can also be applicable to low-voltage cables of a similar type to those specified in BS 638-4, BS 6004, BS 6007, BS 6500, BS 7211 and BS 7919 but not specifically mentioned in those standards. NOTE 2 In such cases it is advisable to seek additional advice from BSI or the cable manufacturer.