What is the reason for the leakage of air-conditioning copper tube?

The copper tube of air conditioner is not water but refrigerant, which is often called fluorine. If the copper tube is broken or the joint is not tight, the refrigerant will leak and there will be no refrigeration. It is necessary to repair or replace the copper tube. However, refrigerant is gas at room temperature, not water. If there are water drops on the copper tube of air conditioning refrigeration, it is because the insulation sleeve of air conditioning copper tube is not tightly wrapped. When the air is humid, the cold copper tube will produce condensed water to form water droplets. This situation can be avoided as long as the bare copper tube is tightly wrapped.