General calculation formula is: ΔL = ΔL1 + ΔL2-bc ⑴ Where: ΔL1: from the initial force (regulations bridge construction specifications for the design of control Tension generally 10% to 25%) to tension control jack piston design tension between tensioning stroke; ΔL2: the estimated value of the initial tensile elongation at (calculated according to specification determined); b: Tools plug anchor bolt retraction; c: Work anchor bolt back into shrinking in terms of the high current flexible busbar research and development of LHGJ-1440/120 resistant aluminum alloy steel core wire, for use in the above loop current 4000A substations overhead cable manufacturer, can reduce the number of bundled conductors, easy design and installation. In terms of resistance to vibration wire overhead cable ex-factory price, research and development LGJ / ZD-300 self-damping wire, anti-vibration measures to simplify the principles of overhead cable lines, maximum use of stress can pull off a big 60% In addition, research the development of optical fiber composite overhead ground wire, increasing the communication capacity of the power system, and an information transmission loss and immune to electromagnetic interference characteristics. Overhead cable _ _ Anhui Electric Group overhead cables provided by the manufacturer, Anhui Electric Group Company Limited. Overhead cable _ _ Anhui Electric Group overhead cable is manufactured by Anhui Electric Group Co., Ltd. (www.ahecable.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact picture on this page or telephone obtain the latest information, contact: Prince Section.