On March 2, 2014, the China Electricity Council organized and commissioned the "JL4 / G1A-630 / 45-45 / 7 steel core high electrical conductivity aluminum strand developed by TBEA (Deyang) Cable Co., Ltd. in Beijing. "JL3 / LHA1-465 / 210-42 / 19 aluminum alloy core high conductivity aluminum wire" and "JLHA3-675-61 medium strength aluminum alloy wire" and other product technical appraisal meeting.
Appraisal Committee from the China Electric Power Research Institute, Electric Power Planning and Design Institute, the State Grid Corporation of Communications Construction Branch, State Grid Corporation of DC Construction Branch, State Grid Corporation of China branch operations, Shanghai Electric Cable Research Institute, Mechanical Industry Electrical Materials and Specialties Cable Quality Supervision and Inspection Center, Power Industry Materials Parts Quality Inspection and Testing Center and Guangdong Power Grid Company and other units of 15 experts.
Accreditation Committee sent experts to the company on-site inspection and sampling tests. During the meeting, the appraisal committee heard the report of the product development and summary, and examined the appraisal data. After careful discussion, the formation of appraisal opinions are as follows:
First, "JL4 / G1A-630 / 45-45 / 7 steel core high conductivity aluminum wire":
1, the product by the Shanghai Institute of Cable electrical materials and special cable quality inspection center to complete the type test, the performance indicators are in line with national standards, the State Grid Corporation of Enterprise Standards Q / GDW 632-2011 "steel core high conductivity aluminum twist Line "and enterprise standards Q /-1.03-2013" steel core high conductivity aluminum wire "of the technical requirements; spot sampling and testing.
2, the product uses a high conductivity aluminum wire and galvanized steel strands once stranded, reasonable structure, high conductivity aluminum wire conductivity of more than 63% IACS.
Second, "JL3 / LHA1-465 / 210-42 / 19 aluminum alloy core high conductivity aluminum wire":
1, the product by the Shanghai Institute of Cable Electrical Materials and Specialty Cable Quality Inspection Center to complete the type test, the technical performance in line with national standards, the State Grid Corporation of Enterprise Standards Q / GDW 1815-2012 "aluminum alloy core high conductivity aluminum Line "and enterprise standards Q /-1.04-2013" Aluminum alloy core high conductivity aluminum wire "of the technical requirements of the requirements; site sampling and testing.
2, the product is made of aluminum alloy wire and high conductivity hard aluminum stranding, reasonable structure, smooth surface, high tensile strength after aluminum alloy wire twist, good conductivity, large elongation.
Third, "JLHA3-675-61 medium strength aluminum alloy wire":
1, the product by the Shanghai Institute of Cable electrical materials and special cable quality inspection center for type testing, the performance indicators are in line with the relevant national standards, the State Grid Corporation of Enterprise standard Q / GDW1816-2012 "medium strength aluminum alloy strand" And enterprise standards Q /-1.05-2013 "Medium Strength Aluminum Stranded" technical requirements; site sampling and testing qualified.
2, the product is made of medium strength aluminum alloy single strand, electrical conductivity of more than 58.5% IACS, tensile strength over 240MPa, elongation of more than 3.0%, with sag characteristics, low resistance loss and good corrosion resistance and so on.
The company's production equipment, tooling and testing equipment improved, alone with aluminum and aluminum alloy continuous casting and rolling production line, with pneumatic constant tension control and pre-forming device of four-stage 84 disc stranded equipment to meet production requirements.
Accreditation Committee agreed that the above products passed the appraisal. Among them, the technical performance of "JL4 / G1A-630 / 45-45 / 7 steel core high electrical conductivity aluminum wire" reached the international advanced level, "JL3 / LHA1-465 / 210-42 / 19 aluminum alloy core high conductivity aluminum wire "product comprehensive technical performance has reached the domestic advanced level.
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