Overhead cables and Precaution
1. In the distribution line, because the line is horizontally, and a smaller distance between the lines, if the wires within the same span sag are not the same as when the wind is a strong swing of each wire is not the same, leading to the collision caused white wire short circuits, so the construction must be strict, attention wire tension, three-phase conductor sag equal, and a predetermined standard range. When line inspection, found the above problems, it is time to arrange treatment.
2. The wind cut off a branch falling on the line, or a guideline throwing metal objects can also cause phase short circuit wire, even broken. In addition, an ultra-high crane car through the line or in the line below the bottom of the job may cause a short circuit or line break accident. Therefore, at the intersection, cross-the-line spacing should leave some distance.
3. Due to the long lead eroded water, air and harmful gases, oxidation damage, steel wire and lightning line most likely to rust, found severe corrosion in the tour leader, should be promptly replaced.
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