Must be Identified with the Tank that it belong, included the Slop Tanks, in proper manner, like welded seam or similar.
所有的人孔盖上必须用电焊或者类似方式做好舱名标识。
2
Protection measures such as installation of desulfurization unit to reduce H_2S, improvement of tank operating conditions and application of sprayed aluminum on welded area etc are presented.
It can be seen through practice that to reduce leakage voltage and facilitate construction, heating pipes may be welded directly to the pipeline or oil tank that needs heating.