closed head什么意思(电机)? 补足上下文: ELECTRICAL CONSUMERS Unless specified as mandatory in data sheets, motor installed power figures are estimated only. The type of electric motor is based on the usual requirements of the process. The final selection of electric equipment in relation to hazardous areas and according to local regulations is the responsibility of the detailed engineering contractor. The engineering contractor should ensure that all motors that drive pumps and are operated by automatic sequence control from the DCS (or subject to auto-start of stand-by ) are capable of starting without a closed head. The Electrical Consumer list is given in Table 1. ..... closed head是什么?关于电气设备的设计规定) 查看更多10个回答 . 3人已关注