00346nam a2200145Ia 450000100060000000800410000602000180004704000130006508200180007810000230009624500540011926000090017330000110018254600070019311131140331s9999    xx            000 0 und d  a0-7506-1645-8  cPK-LaUMT  a 621.3bCOO-E  aCooper, W. Fordham  aElectrical safety engineeringcCooper, W. Fordham  c1993  a571 p.  aEN