Tension clamps are mainly used to fix conductors and lightning protection wires in overhead power lines, and connect them to tension insulators through connecting hardware; or to connect lightning protection wires to towers. According to the different structure and installation method, it is divided into three categories: bolt type, compression type and wedge type. The compression type is divided into hydraulic pressure and explosion pressure.

The meaning of the alphanumerics in the product model is:

N-tension clamp

L-bolt type

D-Flip Chip

Y-hydraulic type

B-explosion pressure type

The number indicates the applicable wire combination number (or the nominal section of the applicable stranded wire. The numerator indicates the aluminum section; the denominator indicates the steel section)

Additional letters: A-Drainage 0° B-Drainage 30*

The radius of curvature of the bolt-type tension clamp is not less than 8 times the diameter of the installed wire. The percentage of the minimum holding force of the wire of the tension clamp and the calculated breaking force of the wire is as follows:

螺栓型耐张线夹用于钢芯铝绞线和铝绞线时，可在导线外加缠铝包带或护线条，其适用导线外径包括包缠物。