Electrical systems in Hospitals

So, which electrical systems should we commission in your hospital? Any system or subsystem can be commissioned, but the following is a summary of the most typical, and arguably most important, electrical systems to be commissioned.

Properly commissioned emergency power systems are efficient, reliable, and sustainable. When not properly commissioned or maintained, they often “run wild.” No electrical system is more important to patient safety than the emergency power system. Components of the emergency power system that must be commissioned include:

• Engine-generator sets
• Paralleling switchgear
• Automatic and manual transfer switches
• Fuel systems: storage tanks, day tanks, pumps, valves
• Annunciation and alarms
• Engine cooling systems
• Control wiring and engine start wiring

People are often surprised that extensive fuel system testing and generator alarm annunciation testing are part of the emergency power system commissioning.

A critical component of the electrical system is an emergency power systems sequence of operation. Commissioning processes need to promote incorporation of sequence of operations in electrical construction documents, especially for complex electrical systems and emergency power systems. This is absolutely essential for systems with multiple paralleled engine-generators and load shedding. The generator operation sequence should be set for the operation in critical situations of main power failure.

Electrical systems with zero down time

The electrical systems used in medical facilities must offer highest level of operation, zero down time with lower costs of repair and maintenance. We are responsible for the installation, maintenance and repair of Hospital building electrical systems, emergency generator systems, and various types of electrical equipment.

The design phase is also the time to start putting together the commissioning plan. The commissioning plan is the roadmap for the commissioning process and usually consists of:

• Introduction and project overview
• General building information
• Commissioning team data
• Roles and responsibilities of team members
• Overview of the commissioning Steps
• Schedule of work
• Start-up checklists
• Functional performance tests
• commissioning specifications and project completion timelines

During the construction phase, the electrical commissioning team works with the design and construction teams to monitor the installation of the electrical systems and equipment. Particular emphasis should be placed on ensuring all required access and clearances are maintained. Regular commissioning meetings of electrical and civil management are held throughout the construction phase to review any installation concerns and to plan for the next phases. The commissioning plan is revised and updated throughout the construction phase.