Cable TV connects thousands of households, and they are all connected by cables and connectors. It can be said that the quality of the "connectors" is one of the most important factors that directly affects the normal operation of the TV network.SYWV The cable TV network project, It is a "joint" project, this is everyone's consensus.
Especially for wired networks in rural areas, due to the limited level of technical personnel and incomplete tools, most of them are carried out manually and often cannot be carried out in strict accordance with construction standards.AVVR cable Therefore, after the network has been running for a period of time, faults occur frequently. In the past maintenance records, most of them were caused by cable joints, or the core wires were detached and the contact was poor. Such faults are easy to eliminate. Another type of fault is when the cable joint is exposed to water, resulting in a serious short circuit, which makes it difficult to troubleshoot. For example: Users reported that the TV was normal during the day, but snowy spots were severe at night. We used various methods to search and narrowed the scope of the fault to a cable joint. We dismantled the waterproof cement and found that water had seeped into it. At night, when the air humidity is high, the cables will be slightly short-circuited and the voltage will drop, causing serious snowflakes on the TV behind you. In order to prevent water from entering the cable, we prepared several solutions and finally selected the method of using soft plastic sleeves. After two years of observation, the problem of water entering the cable has been basically solved, proving that this method is feasible. It is a good method that is simple, low-cost and effective.
This method is very simple, just take a piece of soft plastic pipe 30-40 cm long. The hole diameter should match the cable used.ul 758 cable It doesn't matter if it is slightly larger. Tie the plastic pipe close to the joint end with tie wire (use twisted pair telephone wire or -7 cable copper core for tie-in. In short, the principle is to tie it firmly). Make a hole in the lower part of the plastic pipe. The size is variable because water flows from top to bottom. Even if water enters the cable, it cannot be hidden.
Related articles:
What are the differences in the performance of cables designed for different purposes?
Arabic
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek