Technical FAQs 4

How do I know if my electrical equipment is good?

Check that the electrical equipment is suitable for the work and way in which it is going to be used. Check that the electrical equipment is in good condition. The HSE booklet 'Maintaining portable and transportable electrical equipment' will help you do this.

How do I know if my electrical supply is safe?

Check that the equipment is suitable for the electrical supply with which it is going to be used, and the electrical supply is safe. It is often beneficial to use a Residual Current Device (RCD) between the electrical supply and the equipment. Make sure that the user of the equipment is trained to use it safely and can keep others safe.

How do I maintain portable and transportable electrical equipment?

The HSE booklet 'Maintaining portable and transportable electrical equipment' will help you do this. Check that the equipment is suitable for the electrical supply with which it is going to be used, and the electrical supply is safe. It is often beneficial to use a Residual Current Device (RCD) between the electrical supply and the equipment.

Can a passenger carry a power bank without a 3C Mark?

According to the relevant regulations of the Civil Aviation Administration of China, starting from June 28, 2025, passengers are prohibited from carrying power banks without 3C marks, with unclear 3C marks, or of recalled models or batches on domestic flights.

Photovoltaic Storage & BESS Technical Resources


Expert insights on photovoltaic energy storage systems, BESS solutions, mobile power containers, EMS management systems, commercial storage, industrial storage, containerized storage, and outdoor power generation for South African and African markets

Can outdoor power supplies be checked in

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Our certified engineering team provides comprehensive technical support for all installed photovoltaic storage and BESS systems. From initial system design and engineering to ongoing maintenance, optimization, and performance monitoring, WALMER ENERGY ensures your photovoltaic storage and BESS solutions operate at peak efficiency throughout their lifecycle, with 24/7 monitoring available for critical industrial and commercial applications.

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