The behavior of fiber-optic cables harmful

      First, endangering the safety of optical cable lines within the blasting, piling up flammable or explosive materials warehouse setting.

     Second, the fiber optic cable buried underground drilling on the ground, piling up heavy objects, garbage, or dumping of slag containing acid and other corrosive substances. Buried telecommunications cable accessories in the ditch, dig trenches should be prior consultation with the telecommunications sector.

     Third, the fiber optic cable in the ground within one meter on each side of building scaffolding, within three meters in the dredging of the earth and set up toilets, septic tanks, livestock ring, biogas, etc. can cause corrosion of the cable construction. Fiber optic cable in urban areas within two meters on each side of planting the pole and so on.

     Fourth, where there are marked regional cable across the river dredging, fish, anchor, dragging anchors and carry out other operations endangering the safety cable.

     Fifth, to the pole, cable, steel wire, and every electronic circuit ancillary equipment shooting, throwing debris or other hazards line security.

     Sixth, the pole, cable and other ancillary equipment tied to animals, take the hanging lamp lines, power lines, broadcasting lines, pole lines in the telecommunications ride hanging loudspeakers and radio, TV antenna.

     Seventh, high overload hang up driving cable strongyloidiasis.

     Eight or damaged fiber optic cable is moving freely on the line signs, billboards, monuments, stone slope protection and other facilities.