HBGYV iron core telephone cableThe advantage of it is that it has a certain degree of stability, but once a fault occurs, it will be in a state of communication paralysis because there are many uncertain factors in the use of the line, such as line aging, poor contact, etc., which will affect its call quality. Understanding the cause of the fault is the prerequisite for troubleshooting.

1) Service life. Due to the fact that all items have their service life, and the same goes for the wiring, some of the old wiring has been broken or aged and fallen off. However, most maintenance personnel use adhesive tape to ensure that the wiring can be used normally. But over time, the adhesive tape may also fall off due to various conditions, causing the circuit to fail again or poor contact, affecting its use.

2) Installation environment. HBGYV iron core telephone cable lines are often exposed to wind, sun, or humid environments for a long time, resulting in surface oxidation aging, wire breakage, and short circuits, which can cause line failures.

3) Usage habits. Due to different habits, people tend to entangle or distort the phone line when using it, while others prefer to do other things or walk around the room while making calls, causing varying degrees of dragging and wear on the phone line, which can also lead to poor answering and other wiring problems.

4) Signal interference. The lines commonly used by people are laid by construction workers due to their geographical location and living environment. Compared with general construction operations, some lines are inevitably bent or intersect with each other, causing short circuits and disconnections. In addition, due to the different signal strengths of each line, signal interference, noise, and instability may occur during use.

5) Line malfunction. Most of the cables or wiring junction boxes used by people have some markings at certain locations, which can lead to uncertainties such as construction or road maintenance. If the markings are not discovered in a timely manner during construction, or if the wiring construction personnel neglect to mark the areas with cables, it can cause varying degrees of damage to the wiring, resulting in wiring failures.