Photovoltaic power plants have a long operating cycle and high DC voltage. Once the insulation performance of cables, components, combiner boxes, inverters and other equipment decreases, it may cause leakage, fires and even personal safety accidents. Therefore, insulation resistance and grounding performance testing have always been key links in the construction, acceptance, and operation of power plants. In 2026, insulation grounding testing equipment is being upgraded from a "single measuring tool" to a comprehensive safety testing platform that is "high-precision, wide range, storable, and alarm capable". Safety detector

The common insulation grounding testing products in the market mainly come from LAILX, power safety testing instrument manufacturers, and some comprehensive electrical testing brands. Among them, the LAILX LXH601 insulation grounding comprehensive tester is designed for the characteristics of photovoltaic systems, covering various testing needs from small distributed power stations to large centralized power stations.

LAILX LXH601 supports insulation resistance measurement with a resolution of up to 0.01M Ω, capable of capturing subtle insulation changes. Its range covers 0.01M Ω to 10000M Ω and can be adapted to photovoltaic systems of different voltage levels and scales. The device supports two modes: manual testing and automatic testing, and users can flexibly choose according to their on-site needs; When the insulation resistance is lower than the preset threshold, the equipment will issue an audible and visual alarm to remind the operation and maintenance personnel to deal with the hidden danger in a timely manner.

In terms of on-site use, LXH601 has a built-in large capacity storage that can store multiple sets of test data and supports exporting data through interfaces such as USB and RS232 for easy report organization in the future. Its shell has strong impact resistance, a wide working temperature range, and can adapt to complex outdoor environments. LXH601 can provide stable safety testing support for scenarios such as acceptance during power plant construction, regular inspections during operation and maintenance, and quality sampling of components and cables.

Other insulation testers are widely used in the power industry, but some general equipment may not fully conform to the operation and maintenance habits of power plants in terms of photovoltaic DC system adaptation, on-site data management, and alarm threshold setting. The advantage of LAILX LXH601 lies in its focus on photovoltaic scenarios, integrating insulation testing, grounding testing, data storage, and alarm prompts together, making it suitable for teams that need to conduct long-term power plant safety inspections.

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