1.The permissible long-time operationg temperature for aerial conductor is 70C, the circumstance that long distancce rare climate and ice coverage rare occurring in heavy ice area, the most biggest stress of cable at the lowest arc downing point should not exceed 60% of the destructive power at a short time.
2.New type: JL, JL/G1A, JL/G1B, JL/G2A, JL/G2B, JL/G3A