... laying across rivers and valleys where special geographical teatures exist. 1. Specification: (1) all aluminium conductor (AAC) (2) all aluminimum alloy ... ) 2. Manufacturing standards: IEC83, IEC1089, 31, B232, BS215, DIN48204. 1). Standard: IEC61089, BS215 part2, ASTM B232, DIN48204, BS EN50182. 2 ... on 75°C conductor temperature, 25°C ambient, 2ft/s wind, 96/watts/sq. Ft sun, 0.5 coefficients of ...