1. Stripping the cable:
Strip the cable as shown in the diagram, put two long heat shrink tubes on the shorter stripped cable, and put a short heat shrink tube on the longer stripped cable.
2. Stripping the copper shield, outer semi-conductive layer, and insulating layer:
Strip the copper shield, outer semi-conductive layer, and insulating layer according to the diagram and table. Before stripping, use PVC tape to fix the copper shield, outer semi-conductive layer, and insulating layer. Before stripping, use PVC tape to fix the copper shield. Pay attention to not damaging the insulating layer. The end of the insulating layer is chamfered 1×45° (it cannot be sharpened into a pencil head). Use sandpaper to polish the semi-conductive layer adjacent to the insulating layer to make a smooth transition with the insulating layer.
3. Put on the copper braided mesh, crimp the connecting tube, polish, and clean:
Expand the copper braided mesh and put it on the cable core. Put the connecting tube on the cable core at the longer stripped end. Use a crimping pliers to crimp three times. The three indentations are staggered by 30° during crimping. Grind the burrs and sharp corners on the connecting tube, and use cleaning paper to clean the connecting tube and cable insulation and outer semi-conductive layer according to the cleaning direction. The connecting tube should be cleaned separately.
4. Push in the silicone rubber joint:
Apply a layer of silicone grease evenly on the inside of the intermediate joint, the insulation layer and the semi-conductive layer, and then forcefully push the intermediate joint into the longer stripped cable at one time until the cable insulation is exposed from the other end. Wipe off the excess silicone grease with clean paper.
5. Docking and resetting the intermediate joint:
Insert the shorter stripped end of the cable core into the connecting tube, crimp it three times with crimping pliers, remove burrs and sharp corners, clean the connecting tube and cable insulation with cleaning paper, and mark it with phase color tape as shown in the figure. Apply a layer of silicone grease evenly on the cable insulation layer, forcefully pull the intermediate joint back to the phase color tape mark, wipe off the excess silicone grease, and twist the intermediate joint by hand to eliminate installation stress.
6. Wrapping semi-conductive tape:
Wrap the semi-conductive tape at both ends of the joint body into a winding body that is not less than the diameter of the end of the joint body (starting and stopping action), and then wrap a layer of semi-conductive tape in the form of overlapping 1/3 to the other end of the joint to overlap the semi-conductive layer.
7. Shrinking inner sheath and armor connection:
Pull the long heat shrink tube to the middle of the joint so that its two ends overlap with the inner sheath of the cable, and use a blowtorch to heat evenly from the middle joint to both ends until a small amount of hot melt is squeezed out at both ends. Use a 16mm² braided tape to connect the armor at both ends, tie a few turns of copper wire along the armor and weld it firmly, and fix it with 3 turns of PVC tape in the middle.
