Whether it is still divided into two types of tensile and drape.
First, the use of ADSS tensile clamp is used for the connection of ADSS cable and terminal tower, tensile tower, corner tower and connecting tower, to protect the cable and earthquake resistance. The main structure is U-shaped hanging ring, extension rod, inlay ring, retaining wire pre-twisted wire, tensile pre-twisted wire. A suitable tensile clamp can be selected according to the selection specification sheet.
Two, ADSS suspension clamp overhanging single and double points depending , generally more than double for the drape 600 meters away, the main purpose is to ADSS cable suspended from the tower transmission line coupling fittings for Optical Fiber and Cable Co., Ltd . Improve the seismic capacity of the cable and ensure that the cable does not bend more than the allowable value. The main structure includes aluminum splint, rubber clamp, bolt, flat washer, spring washer, nut, closed pin, U-shaped loop, pre-twisted wire, and pre-twisted wire.
Third, the OPGW tensile clamp is mainly used for the connection of the OPGW cable with the terminal tower, the tension tower and the connecting tower to ensure the normal life of the cable. The main structure includes U-shaped hanging ring, extension rod, inlay ring, retaining wire pre-twisted wire, and tensile pre-twisted wire. The grounding clamp is ordered with the tension clamp and the grounding clamp is not allowed to be installed directly on the inner or outer pre-twisted wire of the tension clamp.
4. The OPGW suspension clamp is divided into a single suspension and a double overhang . It is a connecting fitting for suspending the optical cable in the transmission line tower to protect the optical cable. The structure is aluminum plywood, rubber clamp, bolt, spring pad, flat pad, nut, closed pin, pre-twisted wire, outer pre-twisted wire, joint fitting. Different connecting fittings and hanging clamps can be selected according to the method of hanging the wire on the tower.
The difference between ADSS and OPGW:
1. The difference between the protective lines , ADSS is made of galvanized steel wire or aluminum-clad steel wire. The OPGW drape line is an aluminum alloy wire made of mechanical properties and chemical composition.
2, ADSS must use the fastening fixture , OPGW and the tower can be connected with hoop.
OPGW fiber optic cable , also known as fiber optic composite overhead ground wire, generally adopts aluminum tube type, aluminum frame type and (stainless) steel tube type structure. The structure of 16 core OPGW optical cable is to insert 16 pieces of 250μm optical fiber into the sleeve made of stainless steel. In the tube, the casing is surrounded by an aluminum-clad steel wire (AS wire), and the outer layer of the aluminum alloy wire (AA wire) is twisted into a cable.
The ADSS cable adopts a loose-layer twisted structure, and the 250um fiber is placed in a loose tube made of a high modulus material, and the loose tube is filled with a special waterproof compound. The loose tube is twisted around the non-metallic reinforcing member (FRP) to form a rounded core, the gap in the core is filled with water-blocking grease, the outer core of the cable is extruded into a polyethylene (PE) inner sheath, and then the two layers are twisted in two directions. The reinforcing aramid yarn is finally extruded into a polyethylene (PE) outer sheath or an electrolytically resistant (AT) outer sheath.