Abstract: Diagnosis and treatment in modern hospitals are inseparable from advanced medical equipment, which are inseparable from safe and reliable power supply. Many operations often last for several hours, and the consequences of a sudden power failure during the operation are unimaginable. At the same time, many medical devices directly touch or penetrate into the human organs. At this time, the very small leakage current will threaten the life of the patient. Therefore, the national standards have made clear requirements, medical group 2 locations must be powered by IT system. This article introduces the application of Acrel Medical IT System in Luanda General Hospital, Angola.
Keywords: Medical IT system, Insulation monitoring device, Alarm indicators.
1.Project Overview
Luanda General Hospital in Angola is a China-aided reconstruction and expansion project of Luanda General Hospital in Angola undertaken by China Railway Fourth Bureau. The project uses 8 sets of Acrel medical IT system products. They are AITR series isolation transformer, AKH-0.66P26 current transformer, AIM-M series insulation monitoring device, AID series remote alarm indicator and DC power supply unit.
2.Introduction of Medical Isolated Power Supply System
The medical isolated power supply system is to switch the grounding system (TN-S system) into ungrounded system (IT system) through a medical isolation transformer to supply power for important medical equipment. The insulation monitoring device has the function of insulation monitoring and fault locator has the function of fault circuit locating.
3.Acrel Medical Isolated Power Supply System Solutions
Acrel medical isolated power supply system is suitable for operating room, ICU, CCU and other medical group 2 locations providing safe and uninterruptible power supply. It mainly includes AITR series isolation transformer, AKH-0.66P26 current transformer, AIM-M series insulation monitoring device, AID series remote alarm indicator, DC power supply, ASG series test signal generator and AIL series insulation fault locator.
3.1Acrel Medical Isolated Power Supply System for Operating Room
Option I without insulation fault location function
Option II with insulation fault location function
Note: 1. For operating room, AID series alarm indicator should be installed on the intelligence panel inside the operating room, or next to the intelligence panel (wall mounted installation) so that medical personnel can immediately receive a notification when there is power supply failure.
2. In Option II，if the number of located channels is more than eight，two sets of AIL150 can be used. The combination can be AIL150-8 and AIL150-4 (up to 12 channels), or AIL150 -8 and AIL150-8 (up to 16 channels).
3.2Acrel Medical Isolated Power Supply System for ICU and CCU ICU,CCU
Option I without insulation fault location function
Option II with insulation fault location function
Note: For intensive care unit , AID series alarm indicator should be installed in the nurses 'station so that medical personnel can monitor the operating status of isolated power supply system.
3.3Product Selection
4.Connection Diagram
5.Installation Photos
6.Conclusion
After expansion and reconstruction, Luanda General Hospital has become the largest hospital in Angola. The Acrel medical IT system provides safe and realible power supply for hospitals, effectively improving the local medical conditions and benefiting the local people.
Bibliography
1.IT System Insulation Monitoring Device and Fault Location System of Acrel. 2020
2.IEC 60354-7-710: 2002 Electrical installations of buildings-Part 7-710:Requirements for special installations or locations - Medical locations. 2002
3.IEC 61558-1-15:2011 Safety of transformers, reactors, power supply units and combinations thereof-Part 2-15: particular requirements and tests for isolating transformers for the supply of medical locations. 2011
作者简介：
刘细凤，女，本科 安科瑞电气股份有限公司，主要研究方向为智能电网供配电
Email: 2880157866@qq.com手机：18702111750QQ:2880157866/2881392119
公司简介：
安科瑞电子商务（上海）有限公司是安科瑞电气股份有限公司的全资子公司，安科瑞电气股份有限公司[股票代码:300286.SZ]是一家集研发、生产、销售和服务于一体的高新技术企业，致力于为用户端提供能效管理和用电安全的系统解决方案。公司能效管理系统包括变电所运维云平台、安全用电管理云平台、分表计电、环保用电监管云平台、预付费管理（系统）云平台、泛在电力物联网云平台、智能变配电监控系统、电能质量治理系统、建筑能耗管理系统、工业企业能源管控平台、电气火灾监控系统、消防设备电源监控系统、防火门监控系统、消防应急照明和疏散指示系统、充电桩收费管理云平台、数据中心动环监控系统、电能管理系统、无线测温系统、智慧管廊综合监控和报警系统、智能照明控制系统、IT配电绝缘监测等系统及相关产品。目前已有8000多套各类系统解决方案在全国各地运行，帮助用户实现能源的可视化管理，提供能源数据服务，为用户高效和安全用能保驾护航。