Winter cable laying precautions

DATE:2017-11-20 16:54:22 FROM:

In winter, as the temperature plunges, it has brought a certain impact on the wire and cable industry. The most obvious impact is that the difficulty of cable laying has been increased. For example, it is well known that the oil viscosity of the oil-impregnated insulated cable increases at low temperatures, which can easily damage the insulation during installation. However, the viscosity of the impregnant of the drip-free cable is larger and the influence of low-temperature laying is greater. So in such circumstances, the winter cable laying should be how to proceed, how to make adequate preparations to avoid unnecessary losses?
First of all, before the laying of cables, must be fully prepared. Before the arrival of construction in winter, the construction workers should be organized to learn the construction measures and preventive measures, be familiar with the construction drawings and technical documents related to the laying of cables. In addition, strict winter construction management system should be established. Rules and norms of winter construction and construction measures and preventive measures should be strictly implemented to ensure people, machines, materials and materials go through the winter smoothly to ensure the quality of the project and the progress of the project are not affected. Then according to the construction measures and precautionary measures that have been formulated, materials planning should be done. The materials department should do a good job in supplying the required materials according to the plan, including insulation materials, antifreeze, cold, non-slip, heating supplies, etc., Facilities Required materials. And to ensure the smooth construction of the road, snow and ice promptly removed, the work surface does not freeze phenomenon.
Second, in the cable laying process, we must always pay attention, always ready. For example, because of the low winter temperatures, the snow and ice are easily covered by the snow when enough snow is accumulated. When the weight of the ice layer exceeds the acceptance of the wire and cable, the wire and cable are overhead outdoors. It is easy to lead the cable to pull the transmission tower tilt or pull the poles down and the cable itself collapse phenomenon. Well, in order to prevent this from happening, the choice of data should pay attention to choose to resist the cold cable.
Thirdly, if open-air operation is carried out at a temperature lower than -5 ° C, a warm lounge should be set up near the construction site and the heating facilities should comply with the fire protection regulations. The obvious signs shall be hung on the heating and heating facilities during construction so as to prevent personnel from being burned. Fourth, the cable storage location Ambient temperature is lower than the cable conditions of use, do not put the cable, and other cables in a warm place for 24 hours before laying.
All in all, cabling is generally discouraged or even not allowed at very low temperatures. Especially in the northern part of our country, the temperature is lower in winter, so in addition to the necessary accident maintenance, try to avoid the cable laying project. In addition, as modern buildings become more advanced, they also put forward higher requirements for cable laying in winter, which needs to be studied from the perspectives of reducing construction cost and improving laying efficiency so as to enhance the overall competitiveness of wire and cable manufacturers.