1. Select the appropriate wire type according to the specific environment. It is usually necessary to consider moisture, heat, and corrosion to avoid insulation failure.
2. Regularly check and replace the line. Avoid the circuit being in disrepair for a long time, the insulation layer is old or damaged, and the core is bare.
3. When overcurrent or overvoltage occurs, it is necessary to detect the insulation strength of the line in time to prevent the insulation of the wire from being broken down.
4. Installation and repair personnel should work cautiously to prevent the wrong line from being connected or the short circuit caused by human touch.
5, the installation of bare wires to grasp the height and wire spacing, to avoid accidentally hit the wire when handling metal objects, or metal objects on the line dropped and a short circuit between the wires.
6. Overhead lines must be in accordance with the requirements of the specification to prevent the wires from being too small, the span is too large, and the wires are slack, causing the wires to collide; the distance between the overhead lines and the buildings and trees should meet the standard requirements, so as to avoid the wires caused by the wind. Contact with buildings or trees.
7. Select a wire with a certain mechanical strength to avoid contact with the ground due to wire breakage or to break on another wire.
8. Support insulators for high-voltage overhead lines should ensure sufficient withstand voltage, otherwise it will cause short circuit to ground.
9, the installation of wires or the installation of temporary lines, to follow the rules, private pull, blind and dry and often lead to short circuit. Temporary lines should be removed in time after use.
10, to take technical protection measures for electrical lines, usually mainly use fuses and automatic air switches.