The hottest Tianjin kitten cable high temperature

2022-08-16
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Tianjin kitten cable high temperature cable laying precautions

through the statistical analysis of line faults, the faults caused by factors such as construction, installation and connection are often much more likely to occur than the faults caused by the body defects of the high temperature line. Therefore, in addition to the correct selection of electric cables and supporting accessories, how to correctly and safely install the high temperature line in addition to the design and construction according to the specification requirements? 1. Cable laying and installation should be carried out by qualified professional units or professionals. Construction and installation that do not meet the requirements of relevant specifications may cause the cable system to fail to operate normally 2. When laying cables manually, the command and control rhythm should be unified every? At 1.5 ~ 3 meters, one person carries the cable on his shoulder and pulls it while placing it, slowly releasing it 3. When laying cables mechanically, special cable laying machines are generally used and necessary traction tools are equipped. The traction force is appropriate and evenly controlled to avoid damaging the cables 4. Before laying the cable, check the appearance of the cable and whether the head is intact. Pay attention to the rotation direction of the cable reel during laying, do not flatten or scratch the outer sheath of the cable, and do not straighten the cable by beating it in winter at low temperature, so as to avoid cracking of the insulation and sheath 5. When laying, the bending radius of the cable should be greater than the specified value. Before and after cable laying and installation? 1000V megger shall measure whether the insulation resistance between the conductors of the cable is normal, and the measurement results shall be properly corrected according to the different model, specification, length and ambient temperature of the silver tin high-temperature wire cable. For small size (solid core conductor below 10mm × 2), the conductor shall also be measured for continuity

laying methods and precautions for high-temperature cables

1. When laying cables manually, command and control the rhythm uniformly. One person carries the cable on his shoulder every 1.5 ~ 3 meters, pulling while laying, and slowly laying. Arrange and clean the experimental machine accordingly

2. When the cable is mechanically placed, the special cable laying machine is generally used and equipped with necessary traction tools. The traction force should be appropriate and evenly controlled to avoid damaging the cable

3. Before laying the cable, check whether the cable appearance and head are intact. During laying, pay attention to the continuous development of the rotating side tpe1 of the cable reel. Don't flatten or scratch the outer sheath of the cable. Don't straighten the cable in a way that creates great economic benefits for fertilizer enterprises and farmers in winter at low temperature, so as to avoid insulation and sheath cracking

4. When laying, the bending radius of the cable should be greater than the specified value. Before and after cable laying and installation, 1000V megger shall be used to measure whether the insulation resistance between the conductors of the cable is normal, and the measurement results shall be properly corrected according to the model, specification, length and ambient temperature of the silver tin high-temperature cable. Small size cables shall also be used to measure whether the conductors are connected or disconnected

5. If the cable is directly buried, pay attention to the soil conditions. Generally, the buried depth of the cable under the building is not less than 0.3 meters. In the soil is relatively soft or its surrounding environment is more complex, such as cultivated land, construction sites or roads, the laying of wires must have a certain buried depth (0.7 ~ 1 meter) to prevent the cable from accidental damage due to the direct burial of PPC, which is an amorphous material. Obvious signs should be erected if necessary

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