We bought the elevator dedicated cable, with video power wire, the customers say that they have done before the tie tie is not broken, is the elevator installation problem or they require bundled copper wire should not be used To tie There are several elevators that are now under the copper wire cut off more
The three lines also called the AV line, with the color distinction is mainly to facilitate the video and the corresponding channel, if completely with a color is easy to connect confusion, such as the set-top box audio connected to the TV video. Only from the perspective of the use, as long as you can guarantee video and video connection, audio and audio connection, several lines can be exchanged.
With a multimeter (or shake the table) to measure the insulation, not more than 0.5M Europe on nothing, as long as the insulation of the wire enough, PVC pipe is not used to waterproof, it is used to prevent mechanical trauma, even if not irrigation, buried A long time the tube also has water vapor, is inevitable, nothing!
First look at a few circuits. There is a sketch before the cloth. Optimistic figure. From the electric box to open to wear the main line, and then sub-line on the wall. To clear every road. Lead wire with threader!
