How to use high-voltage power supply correctly

High voltage power supplies play a crucial role in many applications, but their high voltage characteristics also make safe use particularly important.

Usually, even insulators are prone to various discharge phenomena as the applied voltage increases. Therefore, when dealing with high voltage, it is very important to ensure withstand voltage for safety reasons.

The withstand voltage is determined by the creepage distance and insulation distance of the insulation, as well as the shape of the electrode.

Creepage distance: refers to the distance on the surface of the insulator when holding the charging part.

Insulation distance: refers to the insulation thickness when the live part is completely covered by insulation.

The withstand voltage decreases due to moisture and dirt, and the higher the voltage, the more likely it is to discharge or leak electricity.

So we need to choose suitable insulation materials for the voltage used, so that the insulation can be maintained for a long time and the risk of leakage can be reduced.

If safety precautions are not followed when dealing with high voltage, you may be electrocuted or in the worst case, a fatal accident may occur. Carefully read the user manual to ensure a normal operating environment. There are several points to pay special attention to:

It must be grounded!

To avoid discharge to the human body, please cover high voltage with insulation material with sufficient dielectric strength, or cover with ground potential to prevent discharge to other places. Grounding can greatly reduce the risk of electric shock to electrical equipment and personnel. If the high-voltage power supply is not well grounded, leakage may occur, which can cause the equipment casing to become electrified. If the equipment is poorly grounded, workers may experience electric shock when in contact with the equipment, causing serious injury or even death.

Do not touch high-voltage parts!

To avoid electric shock, do not touch the high-voltage output or high-voltage terminals during operation. During normal operation and trial operation, very high voltage will be applied to the terminals, which can cause fatal accidents if touched.

Do not expose high voltage parts!

Exposure to high voltage increases the risk of electric shock and fire hazards. If the voltage exceeds 300V and does not directly contact the electrode, there is a possibility of electric shock due to discharge. Cover high-voltage components such as electrodes with insulators with sufficient insulation strength, or with conductors with grounding potential, and take measures to prevent direct contact. Keeping the high-voltage section enclosed and using insulation protection measures can effectively reduce these risks and ensure the safety of operators.

Operate with your right hand!

To reduce the risk of current flowing through important body organs in case of electric shock, please operate the high-voltage power supply with your right hand and keep your left hand away from the high-voltage power supply or other equipment.

Turn off the power before touching!

Before coming into contact with high-voltage parts, please make sure to turn off the power. Alternatively, make sure the power is turned off. The output part has capacitors, and it is very dangerous to touch them immediately after turning off the power, so it is important to pay attention to the charge of these capacitors and ground them for discharge.

Be careful with cable charging!

The energy charged in the output shielded cable is released through grounding, but if the grounding is removed, the charge may not be completely removed or may recover after a period of time. When touching the output cable, be sure to completely remove the charge.

To prevent personnel from entering hazardous areas or accidentally touching high-pressure areas, the hazardous areas should be clearly indicated and warning messages such as "High Voltage Danger" should be displayed. In addition, when high voltage is generated, a warning is issued through an alarm light or sound.

Therefore, high-voltage power supply is indispensable in many applications, but its dangers cannot be ignored. It is important to have a deep understanding of how to operate high-voltage power supplies correctly, and of course, the design and insulation of our products themselves are also of certain importance. Our products also have high-tech insulators to ensure safety.