UL关于铝合金电缆的讲义3-History 历史

History 历史

1886 The invention of Hall- Heroult Process – producing molten aluminum from
alumina 发明霍尔赫劳尔特电解炼铝法

1965 Aluminum conductors became popular due to copper shortagesand high prices
由于铜短缺和价格高, 铝导体开始流行

1972 AA-8000 series aluminum alloy conductors were listed and manufactured
AA-8000系列的铝合金导体被 列名及生产

1978 Standard for connectors for aluminum building wire, UL 486B was issued by UL
UL推出铝建筑线用连接器标准

1901 The use of aluminum wire was permitted by NEC
铝线被美国国家电工法批准使用

1946 Aluminum wiring was evaluated and listed by UL for interior wiring applications
UL对铝布线进行室内布线用途的评估和用途

1981 NEC required aluminumalloy conductors for branch-circuit wiring
美国国家电工法要求分支电路配线必须是铝合金导体

1987 NEC required AA- 8000 series aluminum conductors for branch-circuit wiring
美国国家电工法要求分支电路配线必 须是AA-8000系列铝合金导体