Solar photovoltaic power plant construction photovoltaic cable introduction and selection

1.DL/T5044-2004 People's Republic of China electric power industry standards, the selection of multi-core cable, the allowable current-carrying capacity can be calculated according to the same cross-section of single-core cable values. Control lines and signal lines leading from the DC cabinet should be selected from copper-core cables. Its voltage drop should not be greater than 5% of the nominal voltage of the DC system. DC cable selection and laying should be consistent with the relevant provisions of GB50217. 2.GB50217 cable design specification for power engineering, DC power supply circuit should be used two-core cable, when necessary, single-core cables. High temperature (more than 100 ℃) or low temperature (-20 ℃ or less) places should not use PVC insulated cables. When laying cables directly buried, steel belt armored cables should be used when the cables are under greater pressure or when there is a danger of mechanical damage. The temperature of the cable core under the action of a larger working current shall not exceed the permissible value determined by the service life of the cable. Determine the cable sustained permissible flow-carrying ambient temperature, if the cable is laid in the air or cable trench, should be taken as the average of the hottest month and day of the higher temperature. 3. cable path should be selected in accordance with the following provisions: to avoid the cable to suffer from mechanical stress, overheating, corrosion and other hazards; to meet the safety requirements to make the cable under the conditions of the cable is shorter; ease of laying, maintenance; to avoid the excavation of construction will be the place; the cable is in any laying mode And all of its path conditions of the up and down left and right to change the components, should meet the requirements of the allowable cable bending radius.-4、About Evergrande Electronic Products Network platform related to the introduction and sales of products briefly: Evergrande Electronic Products Network - a professional agent / production / sales of a variety of {connectors | wiring harness | wire and cable products }; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand what connectors | harness | wire and cable products we can provide solutions, please contact the following Division I business personnel; If you have related [connectors | wire harness | wire and cable products] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!