Low-voltage switchgear and control equipment volumes (Vol.1) - compilation of standard low-voltage electrical(Chinese Edition)

Paperback. Pub Date: 2011 Jun Pages: 921 in Publisher: Standards Press of China low-voltage electrical for AC voltage to work 200 V DC voltage to the workers 500V circuit play-off. control or electrical protective effect. Run low-voltage electrical reliability has a decisive impact on the security of the circuit. in order to ensure that the low-voltage electrical stability to accomplish our work. the state has implemented strict regulations on low-voltage electrical products should follow the relevant standards. from design to manufacturing of low-voltage electrical qualified low-voltage electrical products must comply with the requirements of national standards. With the improvement of the level of science and technology and international exchanges and the development of trade. low-voltage electrical industry actively tracking counterpart IEC standards and possible IEC stan...