Welded composite enclosures of cast and wrought aluminium alloys for gas-filled high-voltage switchgear and controlgear
充气高压开关设备和控制设备用铸造和锻造铝合金焊接复合外壳

2013-05-30

High-voltage switchgear and controlgear. Gas-filled welded composite enclosures of cast and wrought aluminium alloys
高压开关设备和控制设备 铸造和锻造铝合金充气焊接复合外壳

2018-11-13

WELDED COMPOSITE ENCLOSURES OF CAST AND WROUGHT ALUMINIUM ALLOYS FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR.
充气高压开关设备和控制设备用铸造和锻造铝合金焊接复合外壳

1994-11-15

Welded Composite Enclosures of Cast and Wrought Aluminium Alloys for Gas-Filled High-Voltage Switchgear and Controlgear (Adopted CENELEC Standard EN 50069:1991 including Amendment A1:1993)
充气高压开关设备和控制设备用铸造和锻造铝合金焊接复合外壳（采用CENELEC标准EN 50069:1991 包括修改件A1:1993）

2000-02-19