A kind of transmission line of electricity OPGW selection method

The present invention relates to a kind of transmission line of electricity OPGW selection method, methods described includes the combination that (1) chooses transmission line of electricity OPGW and shunt line；(2) permissible short circuit current is calculated；(3) self-impedance is calculated；(4) comprehensive impedance is calculated；(5) ground wire group permissible short circuit current is calculated；(6) short circuit current is verified.Transmission line of electricity OPGW selection methods proposed by the present invention, it the advantage is that self-impedance, the comprehensive impedance for considering transmission line of electricity OPGW and shunt line, computational accuracy height；The short circuit current of two kinds of ground wires respectively is considered simultaneously, ensures the stability of type selecting result；Short circuit current verification is carried out after type selecting, comprising exit verification, the verification of thread-changing tower, ensures that any any place ground wire of situation can stable operation in circuit；Do not increase difficulty in computation, selection method is simple and easy to do.