With the widespread adoption of 1500V high-voltage photovoltaic systems, the DC voltage level of photovoltaic power plants continues to increase, leading to an increase in electrical safety risks. Long term outdoor humidity, rainwater erosion, and wind and sand corrosion can easily cause damage to cable insulation layers, water leakage from junction boxes, corrosion and failure of grounding grids, leading to insulation degradation, leakage, short circuits, lightning protection failure and other hidden dangers, seriously threatening the personal safety of on-site operators and the safety of power plant assets. For a long time, photovoltaic electrical acceptance and operation require carrying multiple instruments such as insulation resistance tester, grounding resistance tester, conductivity tester, DC voltmeter, etc., with numerous equipment, complicated wiring, fragmented testing processes, and low on-site operation efficiency. Suzhou Laikesi LAILX has launched the LXH601 comprehensive insulation and grounding tester, which integrates multiple testing functions. A single device completes the full chain electrical safety testing of photovoltaic systems, revolutionizing the traditional operation mode of multi instrument combination. Multi functional comprehensive electrical appliance

The biggest innovation of LXH601 lies in its multifunctional integrated architecture, which integrates insulation resistance testing, grounding resistance testing, protective conductor conduction testing, DC voltage measurement, and insulation fault location functions, perfectly adapting to mainstream photovoltaic high voltage systems of 1000V and 1500V. The equipment insulation test covers multiple test voltages, which can accurately evaluate the insulation performance of photovoltaic modules, DC cables, combiner boxes, and inverters on the DC side, effectively identifying insulation aging, moisture damage, and other issues. The four wire grounding resistance measurement technology eliminates the interference of test lead resistance, accurately detects the grounding resistance of the array grounding network and equipment protection, and verifies whether the lightning protection grounding system meets the specification requirements; The conductivity test function verifies the continuity of the grounding protection circuit and ensures the reliable introduction of leakage current into the ground in case of a fault. The original GFL insulation fault location mode supports segmented troubleshooting of insulation faults in groups, quickly locking the location of faulty cables and components, significantly reducing fault troubleshooting time and minimizing power station downtime.

The equipment fully considers the safety regulations for photovoltaic high-voltage testing, and is equipped with a comprehensive safety protection mechanism. After the test is completed, residual voltage is automatically released to avoid the risk of electric shock caused by personnel touching the high-voltage circuit; Equipped with reverse connection protection, overvoltage protection, and overload protection to prevent on-site misoperation from damaging the instrument. The body is equipped with a high brightness outdoor display screen, with clear data display and simple operation logic. It supports automatic storage of single test data, can save thousands of test records, supports USB export, and the supporting software automatically generates electrical safety inspection reports. The report format meets the requirements of photovoltaic engineering acceptance and third-party safety assessment standards. The whole machine is stored in a portable protective case, making it easy to carry to various photovoltaic sites such as rooftops and mountains without the need for complex auxiliary equipment. Testing work can be carried out immediately after opening the box.

During the construction phase, LXH601 can be used for insulation and grounding acceptance after the installation of photovoltaic arrays, avoiding electrical construction defects from the source; During the daily operation and maintenance phase, regularly inspect the insulation status and grounding performance of the system, and track the aging trend of the line; During the fault handling phase, quickly locate the insulation fault location to support maintenance work. Compared to purchasing multiple single function instruments separately, LXH601 effectively reduces equipment procurement costs, reduces the workload of instrument handling and frequent wiring replacement, and allows a single person to independently complete a complete set of electrical safety inspections, significantly improving on-site work efficiency. The equipment has undergone rigorous environmental testing and is able to adapt to high and low temperatures, humidity, and dusty outdoor conditions, with strong long-term operational stability.

Electrical safety is the bottom line for the stable operation of photovoltaic power plants, and any small insulation defect in the high-voltage system may evolve into a major safety accident. The LXH601 insulation grounding comprehensive tester has become a standard equipment for EPC construction enterprises, third-party safety testing agencies, and power station operation and maintenance enterprises due to its integration, high precision, and high safety. Suzhou LAILX continues to deeply cultivate photovoltaic electrical testing technology, relying on independent hardware research and algorithm optimization, continuously improving the comprehensive testing equipment product matrix, while providing comprehensive technical guidance, equipment calibration, and after-sales maintenance services. Under the trend of continuous development towards high voltage and large-scale in the photovoltaic industry, Lexus will continue to polish electrical safety testing equipment, continuously improve fault recognition capabilities, and build a solid and reliable electrical safety barrier for various photovoltaic power stations across the country.

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