WOER Heat Shrinkable Busbar Insulating Tube :Avoid short circuit fault caused by small animals such as mice, snakes and so on. Prevent bus bar from chemical corrosion effected by strong acid, alkali, salt, etc. Avoid accidental injure, for instance, that overhaul person enter electriferous clearance by mistakes .Be suit to the trend of smaller switch cabinets. Be applied in bus duct for