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Cable engineering can be divided into several projects
(1) Site transportation: Including the loading, unloading, transportation and return of engineering materials from the warehouse to the construction site.
(2) Local projects: including road excavation, tunnels, and trench construction.
(3) Laying project: including laying, intermediate head making, flipping cover plate, buried pipe, school tide, traction head making and so on.
(4) Both ends of the project: including the production and installation of supports, suspension bridges and their foundations, the production of terminal heads, the installation of oil pressure and signal devices, and the testing of electrical properties.
(5) Plug and stop project: including the production of oil-filled cable plugs and heads, installation of fuel tanks, automatic drainage and signal devices, etc.
(6) Grounding engineering: Including insulation joints, transposition boxes, protectors, and grounding box installation.