Kyongbo Electronics GDR-D01 - 2.7 Insulation Test Requirements

Digital UnderVoltage Relay (GDR-D01) User's Manual V1.10
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Kyongbo Electronics Co., Ltd.
2.7 Insulation Test
Insulation
Resistance
DC 500V
Electric Circuit to
Ground
10MΩ
IEC60255-5
Between Electric
Circuits
5MΩ
Between Electric
Circuit Connections
Commercial
Frequency
Withstand
Voltage
50/60Hz,
1min
Electric Circuit
Bundle to Ground
2kV
IEC60255-5
Between Electric
Circuits
Between Connection
Circuit Contacts
1kV
Impulse
Withstand
Voltage
1.2/50μs,
3 times each
for
positive/negative
polarity
Electric Circuit
Bundle to Ground
5kV
IEC60255-5
Between
Transformer Circuits
Between Transformer
Control Circuits
Between Control
Circuits
3kV
Between Tranformer
Circuit Contacts
Between Control
Power Circuit
Contacts
【Table 2.6】 Insulation
Caution) AUX POWER and 485 Communication Circuits enclose surge protection
circuit inside the relay, so do not test insulation resistance test and withstand
voltage test.