Optical composite power cable fittings (a) ADSS cable structure ADSS cable is structured into central tube and stranded beam tube into two categories, better conditions in all aspects except for some power lines, should use stranded beam tube structure under normal circumstances The ADSS cable. ADSS optical fiber cable is introduced into the beam inside the corrugated tube, and then the beam tube stranding, stranding more than generate long, long fiber has more than adequate to ensure the normal operation when the cable to withstand mechanical loads unstressed fiber (ie, fiber zero Tension design), it will not increase the fiber loss. (B) ADSS ADSS cable electrical performance type selection should first consider the electrical performance requirements that can withstand space ADSS size induced electric field (potential) because ADSS cable in the vicinity of high-voltage line conductors, the presence of an electromagnetic field around the wire space, cable for capacitive coupling between conductors and ground cable in a position to make a space potential, due to fog, when dew or light rain, wet surface contamination in the cable outer sheath to form a resistive layer. In the role of space potential, the jacket surface of the ground between the cable tower on gold with a current flows, the current fever caused by the evaporation of water, so that the surface of the cable outer sheath small pieces of dry zone, blocking the current, when the dry zone When the potential difference reaches a certain height, they form an arc discharge occurs, which is dry band arcing. Heat it produces can be crosslinked polymer gradually lose the general principle is the binding force does not affect the safe operation of power lines, without reducing the reliability of the premise before erecting ADSS cable. Therefore, I propose to set up ADSS cable, you should try to choose a line tower power lines with better conditions. In terms of products, the country currently has ADSS cable products and testing standards, such as the National Standard GB / T18899 "all-dielectric self-supporting cable" and the power industry standard DL / T788 "all-dielectric self-supporting cable", mainly on the IEEE International -P1222 and IEC60794-4 "for all-dielectric self-supporting cable for overhead transmission lines IEEE standard (draft)", "cable Part 4: Sectional specification - erected along the power line cable." In engineering terms, the domestic power industry standard DL / T5344 "power optical fiber communication engineering acceptance" and DL / T767 "technical conditions and test methods for all-dielectric self-supporting cable (ADSS) with using preformed wire gold", but so far no mature Effective for ADSS cable lines engineering design requirements / regulations and norms, so ADSS cable installation design, can only refer to the current power industry standard DL / T5092 "110-500kV overhead transmission line design technical regulations." Jinan Fruit Information Technology Co. ___ optical composite power cable fittings