Direct use of plastic tape has many disadvantages: plastic tape is easy to be misplaced and opened for a long time; when the electrical load is heavy, the connector will heat up, and the plastic tape will melt and shrink; the power connector is squeezed in the junction box, and the connector is easy to tie when there are burrs. Injury plastic tape, etc.
These hidden dangers will directly endanger personal safety, cause a short circuit in the circuit, and cause a fire. The above situation will not occur if the insulating black tape is used. It has a certain strength and flexibility, can be tightly wound around the joints for a long time, is compact and shaped under the influence of time and temperature, will not fall off, and is flame-retardant. Furthermore, wrapping it with insulating black tape and then wrapping it with plastic tape can prevent moisture and rust.
Of course, the insulating self-adhesive tape also has defects. Although it has good waterproof performance, it is easy to break, so at the end, two layers of plastic tape should be wrapped as a protective layer.
