| The character of the pipe used in theinstallation of the wiring 1. High intensity, light weight,invariability, lubricity inner surface, small friction coefficient, light andsmooth to traverse the cable, not destroying the cable. 2. Insulating, noelectric erosion, no magnetism. 3. good water enduring, rubber seal packingring at the connection point adapts the heat expanding and cold contracting andalso prevents the enter of mud, which can be buried under water for long time. 4. flame retardant, heat enduring that can be used in the 130 and will notdistort. 5. Long operating life, generally longer than 50 years. 6. Theadapting form connection is adopted in the design; easy to installation andconstruction; because of the light weight, high intensity and simple toconstruct burying, we can resolve the problem of long time exposure and citytransportation effecting. 7. Widely used range: the FRP protecting pipe ofcable is applied to be the protecting pipe while burying the cable under theearth; it is also used on the bridge cable, river cable and other high requiredenvironment. The multilayer and multi-row's multi-pipe arranging style can becomposed by tie-in special pipe combination. It is absolutely necessarily underearth cable protecting cannula in nowadays' city road cable engineering. |
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