First, too many line connectors
There will be some joints produced during the operation of the electrician, but some electrician masters are limited by the technical level or have a weak sense of responsibility. If the joints are not well wired, insulated and protected from moisture, disconnection or short circuit will occur.
Weapons: The line minimizes the joints. If wiring is required, the distribution line should be well-sealed, insulated and protected from moisture, or tin or terminal blocks.
Second, concealed engineering line casing
The casing is to protect the concealed line from damage. If the casing is not properly used or not, it is impossible to avoid damage to the line during construction or in the future, leaving hidden dangers.
Support: The hidden line of the wall uses PVC hard wire tube, pay attention to the line number. Try to reduce the ground wiring. If you want to walk on the ground, considering that it will be under pressure for a long time, it will be affected during the construction. Therefore, it is best to use the PVC pipe inside the water gas pipe to re-wire the cable, and fix it. It moves.
Third, the line is damaged
The completed line was damaged by subsequent construction. For example, when the wall line is interrupted by the electric hammer and the floor is paved, the gas nail gun penetrates the PVC wire or sheathed wire.
Weapons: Mark the well-preserved hidden lines to avoid inadvertent damage by the construction workers in the next process.
Fourth, the selection of distribution line wires
The distribution line does not consider different rated currents of different specifications, resulting in long-term overload operation of the line itself.
Weapons: The selection of distribution line wires should pay attention to its rated current.
Five, a variety of different lines go the same line
If the TV antenna, telephone line and distribution line are put into the same casing, the reception of TV and telephone will be disturbed.
Weapons: TV antenna lines and telephone lines are separately taken.