XGW-12

Outdoor Ring Main Unit Box

The ring main unit box is an electrical device that houses a set of ring main units in a metal or non-metal insulated cabinet, enabling ring network power supply. The core components include circuit breaker cabinets, PT cabinets, and DTU cabinets. It offers advantages such as a simple structure, compact size, standardization, low cost, improved power supply quality, and enhanced safety.

Description

Features

● Rated current: 630A
● Rated frequency: 50Hz
● Rated short-time withstand current (main circuit): 20kA
● Rated peak withstand current (main circuit): 50kA
● Rated short-circuit duration (main circuit): 4s
● Rated short-time withstand current (grounding circuit): 17.4kA
● Rated peak withstand current (grounding circuit): 43.5kA
● Rated short-circuit duration (grounding circuit): 2s
● Rated short-time power frequency withstand voltage: 42kV
● Rated lightning impulse withstand voltage: 75kV
● Rated short-time power frequency withstand voltage /break: 48kV
● Rated lightning impulse withstand voltage /break: 85kV

Strength

● The outdoor enclosure is made from high-quality sheet metal with a thickness of not less than 2mm, providing high strength and requiring minimal foundation leveling. ● The surface is treated with powder coating, offering strong corrosion resistance. The overall surface has no removable fasteners, ensuring good anti-theft protection.
● The top cover is designed with a 5-degree drainage slope and equipped with a sealed floor at the cable entry point to prevent moisture from entering the cabinet.

● The door is sealed with gaskets, and the door lock is rainproof. A limit device is in place when the door is open, and the protection level reaches IP44.
● The internal equipment is pre-installed in the factory, making on-site installation easy with minimal setup and commissioning work, allowing for quick power delivery.