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Firstly, the basket cable is damaged by external forces. According to incomplete statistics, external damage can be said to be the number one "killer" of cables. Due to the acceleration of urbanization in our country, almost every city is undertaking large-scale renovation projects. During the construction process, cables will be damaged to varying degrees. Some will directly block the cables completely, while others will leave "sequelae" for the cables, greatly reducing their protection and increasing the incidence of cable failures.

Secondly, the insulation of the hanging basket cable is damp. This situation is also very common, usually occurring at the cable joints in direct burial or piping. For example, unqualified cable joints and joints made in humid weather conditions can cause water or steam to enter the joints. Over time, under the action of the electric field, water branches will form, gradually damaging the insulation strength of the cable and causing faults.

Thirdly, chemical corrosion of the hanging basket cable. Directly burying cables in areas with acidic or alkaline effects often leads to corrosion of the cable's armor, lead skin, or outer protective layer. The protective layer may fail due to long-term chemical or electrolytic corrosion, resulting in reduced insulation and cable failure - the corrosion situation of a unit's cable is quite severe.

Fourthly, the suspended basket cable operates under long-term overload. When people work excessively, they will collapse, and cables are no exception. Due to the thermal effect of current, when the load current passes through the cable, it will inevitably cause the conductor to heat up. At the same time, the skin effect of charges, eddy current loss of steel armor, and insulation medium loss will also generate additional heat, thereby causing the temperature of the cable to rise. During long-term overload operation, excessively high temperatures can accelerate insulation aging, leading to insulation breakdown. Especially in the hot summer, the temperature rise of cables often leads to the breakdown of weak insulation points, so there are particularly many cable faults in summer.

Fifth, the cable joint of the hanging basket is faulty. Cable joints are the weakest link in cable circuits, and cable joint failures often occur due to direct human error (poor construction). During the process of making cable joints, if the joints are not tightly pressed or the heating is insufficient, the insulation of the cable heads will be reduced, leading to accidents.

Sixth, the environment and temperature of the hanging basket cable. The external environment and heat source in which the cable is located can also cause excessive temperature, insulation breakdown, and even explosion and fire.

Seventh, other reasons such as normal aging or natural disasters of the hanging basket cable body.