The quality of the melt-blown cloth heating tube depends on the electrical strength:

The factors that affect the electrical strength of the heating tube mainly include the thickness of the insulating layer, the quality of the raw material of the insulating layer, the length of the heating tube, the bending radius and the number of bending. Qiaohua Electric Appliance Factory can generally achieve 2000V, 1 second on the cold-state withstand voltage of the electric heating tube, and the breakdown current is 0.5mA.