How China’s Chengdu‑Ya’an Railway Sets New Standards in Weak‑Current System Integration

Inspired by the immaculate wiring seen in German engineering, Chinese railway engineers demonstrate that meticulous craftsmanship is not exclusive to Germany.

Recently, China Railway 12th Bureau Group Co., Ltd. presented a series of photographs illustrating the weak‑current system integration for the Chengdu‑Ya’an section of the Sichuan‑Tibet railway.

The Chengdu‑Ya’an railway, the earliest constructed and operational segment of the Sichuan‑Tibet line, spans 140 km, features double‑track I‑grade standards, and includes 11 stations such as Chengdu West, Pujiang, Chaoyang Lake, and Ya’an.

The weak‑current system integration was executed by the Electrification Engineering Division of China Railway 12th Bureau Group. The project adhered to national detailed process standards for communication, information, and signaling installations, marking the first application of these standards by China Railway Chengdu Bureau Group.

Utilizing BIM technology, the team innovated construction methods to ensure high‑quality installation, earning praise from Chengdu Railway Bureau and peer organizations.

Upward Wiring Techniques

Downward Wiring Techniques

Cabinet Installation Techniques

Side‑Mount and Wiring Techniques

Interface Cabinet Techniques

Cable Introduction Techniques

Cable Primary Termination Techniques

Cable Secondary Termination Techniques

Mechanical Room Equipment Layout

Power Room Equipment Layout

Cable Distribution Room Techniques

Power Cable Routing Techniques

Power Screen Wiring Techniques

Zero‑Level Power Cable Techniques

Grounding Busbar Techniques

Signal Box XB Cabinet Wiring Techniques

Bridge Trench Cable Spare Capacity Techniques

The 44 photos collectively reveal the flawless wiring layout of the Sichuan‑Tibet railway, illustrating the meticulous construction behind this mega‑project and earning admiration even from those with a penchant for perfection.

Such high standards are expected to continue across all ongoing works of the Sichuan‑Tibet railway, ensuring its prominence in engineering excellence.