Splicing closure for OPPC: According to different running ways of OPPC splicing closure, , terminal style and middle style can be applied in OPPC lines. Usually, middle splicing closure adopt electric conducting with non-insulating material to be the fiber-connecting instrument; Terminal style splicing closure adopts separating high voltage wigth insulating material to be the fiber-connectiong instrument, and two times to weld fiber in upper and lower part of splicing closure to keeping security.