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——Case 06 / 07 · Public Infrastructure
Dual-circuit dual-source power for a Class III Tier A hospital.
A 77,000 m² Class III Tier A general hospital in Xichang, Liangshan Prefecture, secured through a pioneering dual-circuit dual-source scheme with imported diesel backup holding operating rooms, ICU and the emergency department through grid outages.
A Class III Tier A hospital founded in 1956, hardened for uninterrupted care.
Xichang People’s Hospital, founded in March 1956 and located on Shunhe Road in Xichang, Liangshan Prefecture, is a roughly 77,000 m² Class III Tier A general hospital. Its electrical design targets absolute supply reliability, positioning the facility as a benchmark for medical infrastructure across Liangshan.
The scheme pairs a dual-circuit dual-source architecture — Liangshan’s first one-main / one-backup configuration — with an imported diesel generator that starts rapidly on grid failure and holds operating rooms, ICU and the emergency department without interruption. A dedicated substation and switchgear room, together with new transformer additions targeted at the surgical building, complete the critical-power backbone.
Reliability engineered for life-safety loads.
Power continuity for surgery, intensive care and the emergency department is enforced through a one-main / one-backup circuit scheme and an imported diesel generator that takes over automatically.
Dual-circuit + dual-source scheme
Pioneered in Liangshan Prefecture
Imported diesel backup generator
Uninterrupted power to OR, ICU, ER
Dedicated substation & switchgear room
Regional benchmark for hospital reliability
What was delivered.
A purpose-built substation, dual-circuit switchover logic and imported backup generation sized for the hospital’s most life-safety-critical loads.
01
SCHEMEDual-Circuit Dual-Source System
Liangshan’s first one-main / one-backup configuration: when the main utility circuit is lost, the backup circuit takes over automatically, with no manual intervention and no break to critical medical loads.
02
BACKUPDiesel Backup Generation
An imported diesel generator set starts rapidly on grid failure and carries operating rooms, ICU and the emergency department through sustained outages, with automatic transfer logic coordinating the switchover.
03
SUBSTATION
Dedicated Substation & Distribution
A purpose-built substation and switchgear room, supplemented by new transformer additions targeted at the surgical building and other high-criticality zones, isolates medical-grade loads from general building demand.
On-site photographs.
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