Leakage detection of rural lighting electrical ready boards: comparison between traditional methods and intelligent devices

In the leakage detection of rural lighting electrical ready boards, traditional methods and intelligent devices have their own advantages and disadvantages. The specific comparative analysis is as follows:

traditional method

Preliminary inspection: By checking whether the internal wiring connections of the electrical ready board are firm, whether there are obvious signs of burning or damage, observing whether there is water or moisture in the electrical ready board itself, checking the sealing, and disconnecting the electrical switches one by one to observe whether the leakage phenomenon disappears, etc. This method relies on manual observation and empirical judgment, and is suitable for rapid localization of obvious faults, but cannot accurately measure the size and location of leakage current.

Multimeter measurement: After power failure, use a multimeter to measure the resistance between the live wire, neutral wire, and ground wire, and determine whether there is leakage based on the resistance value. This method is simple to operate and cost-effective, but requires power-off operation and cannot monitor the leakage situation in real time, with limited ability to capture intermittent leakage faults.

Clamp meter measurement: directly clamp the live and neutral wires to measure the current. If the reading is not zero, it indicates the presence of leakage. This method can quickly determine circuit leakage, but it cannot locate the specific leakage point and requires high skills from operators.

Smart devices

Residual current monitoring device: Equipment such as ASJ60-LD16A can monitor and display the residual current of distribution lines in real time, with alarm function, and can accurately locate the leakage circuit. Its advantage lies in high-precision monitoring and automated alarm, but the equipment cost is high and requires professional installation and maintenance.

Intelligent electricity monitoring module: integrating voltage sensors, current sensors, residual current sensors, etc., can synchronously collect the residual current of multiple line nodes, and assist the higher-level circuit breaker in providing appropriate leakage current setting values. This device supports remote monitoring and data analysis, but the deployment is complex and has requirements for the network environment.

Leakage intelligent monitoring system: using Internet of Things and cloud platform technology, it has functions such as group control, automatic power-off, remote alarm, etc., and can achieve visualization of electricity data. Its advantages lie in real-time monitoring and efficient response, but the system construction cost is high and requires supporting software platforms.

Comparative Summary

Accuracy and efficiency: Intelligent devices can accurately locate leakage points and provide real-time alarms through high-precision sensors and data analysis algorithms, which is significantly better than traditional methods of fuzzy judgment and manual troubleshooting.

Security: Smart devices support automatic power-off and remote alarm, which can effectively reduce the risk of electric shock, while traditional methods rely on manual operation, which poses safety hazards.

Cost and maintenance: Traditional methods have low costs but low efficiency, while intelligent devices have high initial investment but low long-term operation and maintenance costs, and can reduce power outage losses.

Applicable scenarios: Traditional methods are suitable for simple fault diagnosis and temporary detection, while intelligent devices are suitable for large-scale power grid monitoring and long-term security protection.