What are the Main Parameters of SPD Lightning Arresters? Usage Precautions?

**Main Parameters:**

1. Rated Voltage: The maximum voltage that the SPD lightning arrester can withstand, typically expressed in volts.
2. Rated Current: The maximum rated current of the SPD lightning arrester, usually in amperes.
3. Discharge Current: The maximum current that the SPD lightning arrester can rapidly divert to ground when subjected to overvoltage surges.
4. Quality Level: The reliability of the SPD lightning arrester, often indicated by quality levels according to IEC standards, ranging from Class I to Class IV.

**Usage Precautions:**

1. SPD lightning arresters should be installed and commissioned by professional engineers to ensure correct and reliable operation.
2. SPD lightning arresters require regular inspection and replacement, and relevant safety protection regulations should be followed during use.
3. Users should select appropriate SPD lightning arresters based on the actual conditions of the electrical equipment to ensure optimal protection.
4. Other electrical equipment used in conjunction with SPD lightning arresters should also comply with relevant standards and requirements to ensure the overall safety of the system.