Analysis Of The Installation Status Of Bolt-type Tension Clamps

After the conductor is placed in the clamp's through-slot, the pressure plate is positioned, and then the legs of the U-bolt pass through the through-hole at the bottom of the slot and are locked with the nut. Simultaneously, the semi-circular ring forms a pressure seal with the pressure plate. This causes the U-shaped compression ring to engage within the positioning slot, fitting against the semi-circular boss on the pressure plate, thus pressing the conductor inside the clamp.

The fit between the bolted type strain clamp body and the pressure plate allows vertical pressure to be applied to the conductor through the U-bolt, generating a frictional effect. This structure originates from the widely used dead end strain clamp design concept.

Throughout the product series, whether made of aluminum alloy or malleable cast iron/stamped steel, the above-described clamping principle applies.

During installation, matching the conductor diameter to the clamp's through-slot size is crucial. bolted dead end clamp is typically divided into several series according to conductor specifications, such as NLL and NLD, for different cross-sections of aluminum stranded wire or steel-cored aluminum stranded wire.