Let's Discuss The Installation And Design Process Of Power Line Fittings.
overhead line hardware The design and construction of the laying device shall be carried out in accordance with the relevant provisions of GB50217-94 "Code for Design of Cables for Power Engineering" and other relevant regulations, and necessary cable accessories (terminals and joints) shall be selected. The quality, safety, and reliability of the power supply system are not only related to the quality of the overhead power line connectors cable itself, but also to the construction quality of the cable accessories and lines.
Statistical analysis of line faults shows that faults caused by factors such as construction, installation, and connection are often much more likely to be caused by defects in the overhead power line hardware itself. The following aspects should be noted: Cable laying and installation should be carried out by qualified professional units or personnel. Construction and installation that do not meet the relevant standards and requirements may lead to the cable system failing to operate normally.
When laying cables manually, the pace should be controlled under unified command. One person should carry the cable on their shoulder every 1.5 to 3 meters, releasing and pulling the cable gradually. When laying cables mechanically, a dedicated cable laying machine should generally be used, equipped with necessary traction tools. The traction force should be appropriate and evenly controlled to avoid damaging the cable.
Before laying the cable, check whether the cable's appearance and end caps are intact. During laying, pay attention to the rotation direction of the cable reel, and do not flatten or scratch the outer sheath of the cable. In low temperatures during winter, do not straighten the cable by striking it to avoid damage and cracking of the insulation and sheath. The bending radius of the cable during laying must be greater than the specified value. Before and after cable laying and installation, use a 1000V megohmmeter to measure whether the insulation resistance between the cable conductors is normal.
