T/CQPRA 0103-2026 Quality Standard for Assembly and Commissioning of Ring Main Unit

Scope

This document is applicable to the assembly quality control and factory commissioning of medium-voltage ring network cabinets with a rated voltage of 3.6 kV to 40.5 kV (including gas-insulated, solid-insulated, and their combined forms) during the production and manufacturing phase, and is also applicable to the handover, commissioning, and acceptance activities after the equipment is installed on-site. This document is applicable to ring network cabinet manufacturing enterprises, complete equipment factories, testing institutions, and related engineering units in carrying out quality control and technical management work, and can also be used as a reference by supervision units and users in equipment acceptance and quality evaluation. This document specifies the quality control requirements for ring network cabinets throughout the entire assembly and commissioning process, including assembly preparation, assembly process, electrical connection, insulation and sealing treatment, commissioning process, performance testing, inspection and acceptance, and data management, etc.

Development Information

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