1.The Surge arrester,SPD used widely in the electricel system to protect the voltage stably
2.Lightning protection.
The Surge arrester,SPDdetails:
The surge-protective device(spd) for AC 50-60Hz, 380V and below TT, TN and other power supply systems, widely used in various types of power supply 2 (B grade) over-voltage protection. Usually installed in the building into low-voltage main distribution line, the total low-voltage switch cabinet or cabinet, etc..
Type | WBD1-B30 | WBD1-B50 | WBD1-B60 | WBD1-B100 |
Rated Voltage UnV~ | 220/380 | 220/380 | 220/380 | 220/380 |
Continuous operating voltageUeV~ | 385,420 | 385,420 | 385,420 | 385,420 |
Protection level UpKV | ≤1.55 | ≤1.6 | ≤1.6 | ≤1.6 |
Nominal discharge current In8/20μSKA | 30 | 50 | 60 | 100 |
Maximum discharge current Imax8/20μSKA | 60 | 100 | 120 | 150 |
Response time t(ns) | <25 | |||
Temperature(oC) | -40~+85 | |||
Relative humidity (%) | ≤95%(25oC) | |||
Access to wire cross-sectional area (mm2 ) | ≥25 | ≥35 | ||
Access grounding wire cross-sectional area (mm2 ) | ≥35 | ≥35 | ||
