On-line monitoring system for circulating current of power cable sheath
Performance
Sampling period: <0.5s
Accuracy: 0.5 level
Sensitivity: ±0.1A
Measuring range: 0-200A power frequency current value (can be customized on site)
The number of ground current sensors that can be connected to each remote monitoring terminal: no less than 3 (expandable)
working environment
Working environment temperature: -30℃~70℃
Working environment humidity <95%RH
Lightning protection level: not less than level 2
Outdoor terminal box waterproof performance: not less than IP67
Dustproof: IEC60529 standard level 5
Electromagnetic compatibility: meet GB17625.1-2003