Is the electrode of traditional uv lamp insulated?

keep warm. The starting process of UV lamp is that the cold cathode releases hot electrons, and the electrons are accelerated under the action of electric field. After many collisions with argon molecules and gong, gong atoms jump and emit light. The released hot electrons are related to the temperature at the cathode. At high temperature, electrons need less energy to escape from the surface of the cathode material, and it is easy to start when the cathode potential is low, but it is not easy to start when the cathode temperature is low. Therefore, when starting the UV lamp, the lamp tube should not be cooled, but should be kept warm or heated to facilitate starting. The gold film plated on both ends of the lamp tube plays the role of heat preservation. Without the gold film UV lamp, it is not easy to start, and even if it is started, there will be arc extinguishing phenomenon. At the end of the work, turn off the UV lamp, but the temperature of the lamp tube is still very high, and it needs to continue to cool until it reaches room temperature, so the fan should be delayed for a period of time before turning off.