| 摘要 |
<p>a. A cable joint sealing by using normal cure composite tape seal has an insulated wire joint enveloped by insulation tape and the edges are sealed by non curable polysulphide mix. (poly paste-A) b. the said joint is covered with polyester film, the edges of the film are fixed with poly paste-A, followed by winding tightly with insulation tape, then two sides of cable surfaces are cleaned and activated by etching with xylene solvent. End seals are made around cable surface by using curable polysulphide mix. (poly paste-B) and enclosing the entire seal by winding with elastomer tape. Poly gel of curable polysulphide mix. (may or may not) coated on the entire surface and then covered by winding a flexible normal cure composite (NCCS) tape made of glass fibre impregnated with polysulphide mix having polyethylene peel off film. c. The assembly being covered either by winding with elastomer tape followed by insulation tape, and the two terminal ends are tightened by nylon tags or fibre reinforced polyester shells containing the poly paste can be fixed and tightened with nylon tags. d. The above said seal prevents water seepage, termite attacks to the cable joint under ground or under water and resists to mechanical damages.</p> |
