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Product type
A Ring Main Unit (RMU) is a type of electrical distribution equipment used in medium voltage networks. It is designed to provide a reliable and efficient way to distribute electrical power, typically in urban and industrial settings. RMUs are usually constructed from metal or reinforced plastic and contain switches, fuses, and circuit breakers to protect and control the electrical supply.
| Voltage rating | Up to 36 kV |
| Number of feeders | Typically 2 to 4 |
| Insulation type | Gas-insulated or air-insulated |
| Protection features | Overcurrent, earth fault, and short circuit protection |
| Operating temperature range | -25°C to +40°C |
When selecting a Ring Main Unit, consider the voltage rating and the number of feeders required for your application. It's important to specify the insulation type based on your environmental conditions and space constraints. Additionally, inquire about the protection features needed for your specific use case, and ensure that the unit complies with relevant standards and certifications. Quantity requirements can influence pricing and lead times, so be clear about your needs when requesting a quote.
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Typically 20 to 30 years, depending on maintenance and operating conditions.
Yes, but ensure they are rated for outdoor use and have appropriate weather protection.
Regular inspections, cleaning, and testing of protective devices are recommended.
Yes, they can be customized based on specific electrical requirements and configurations.
Look for features like circuit breakers, fuses, and interlocks for safety.
Calculate the total load and consider future expansion needs to determine the appropriate size.