What Is The Use of The Cable Out-sheath?

Protection against mechanical damage within the sheath and chemical corrosion and Enhance the mechanical strength.

What Should Be Check Before Laying Cables?

NO.1  Bracket,oil paint should be complete

NO.2  Cable type,voltage,specification comply with the design

NO.3  Good cable insulation,when the seal on the oil-paper cables there is doubt,should be carried out to determine moisture,buried cable with a small DC voltage underground cables should try hard to pass by,oil-filled cable test oil samples should be qualified.

NO.4  Oil-filled cables should not be less than 1.47MPa Pressure.