Selection Of Line Tension Clamps When Using Lgj And Lj Conductors

When using LGJ or LJ conductors, since the dead end clamp is clamped on the outer diameter of the conductor when used, the ab cable dead end clamp model to be used should be selected according to the outer diameter of the conductor. For example, when using LGJ-185/30 conductor in power lines, it is calculated that its outer diameter is 18.88mm. From the above table, it is known that the abc dead end clamp should be NLL-4, NLL-5 or NLD-4. It should be noted that the outer diameter of the LGJ conductor is calculated by adding the aluminum wire cross section of 185mm and the steel core cross section of 30mm, and it is not simply calculated by the aluminum wire cross section of 185mm. LGJ conductors of the same specification have different steel core cross sections and conductor outer diameters, so the dead end clamp for ab cable used by LGJ conductors of the same specification are not necessarily the same. If it is an LJ conductor, since it has no steel core, the cross section of the aluminum stranded wire can be used to calculate the outer diameter of the conductor. In addition, since the dead end clamp for abc cable is clamped on the outer diameter of the wire, we require that the outer layer of the LGJ or LJ wire be wrapped with aluminum tape during construction to prevent damage to the wire during crimping.