For typical UK practice, probably best you start with Health Technical Memorandum 06-01: electrical services supply and distribution - this will give you both the broad basis for designing within the patient environment and UK specific requirements. It won't give you a model solution, you need to understand the clinical risk assessments for the type of space you are designing, and some of the solutions can be technically complex - but it will give you a good starting point.
European practice is broadly similar, again with country specific requirements, but the broad principles of primary, secondary and tertiary power distribution are similar to UK practice.
You can also get good information from the engineering sections of the American Institute of Architects guidelines for design and construction of healthcare facilities on a more global basis (for example middle east design might follow broadly EN standards or NEC standards depending on the specific location and who's paying the bill.
I can't give you specific details on Russian healthcare systems design practice - but again the principles of safe and secure power systems, with good back up and very specific protection against stray voltages in critical care applications are generally similar - it's all about resilience and continued operability in ever degrading conditions, before evacuation is necessary
Lighting systems are usually designed on a minimum of two circuits per space, and categorised such that you would aim for either 50% of normal lighting or 100% of normal lighting - colour rendering is crucially important as colour of the patient is a pretty good indicator of what may be going wrong (google Cyanosis for example)
Redundancy is almost certainly based on N+1 capability, with critical systems offered on a dual and/or dual unified basis to give N+N - eg a Hospital needing 4MVA would almost certainly have an A and B incomer based on a firm supply basis and standby generation for full load operation offered in N+1 grouping with something like 200 Hours of operational capability. HTM 06-01 mentioned above will give you a good understanding of Clinical Risk groupings - eg, if a patient can walk into a space for a basic examination, they can walk out in an emergency - so you don't need a great deal of redundancy - contrast that to someone comatose in a ICU bed, you will need primary power, secondary power back up and no break tertiary power coupled with medical isolated power systems to give the best possible chance of keeping them going in an emergency - you would wish that they can stay put as long as possible as moving them will probably kill them.
All of the power distribution system needs designing with fire in mind - which will help you decide "zoning" or diverse routing
For typical UK practice, probably best you start with Health Technical Memorandum 06-01: electrical services supply and distribution - this will give you both the broad basis for designing within the patient environment and UK specific requirements. It won't give you a model solution, you need to understand the clinical risk assessments for the type of space you are designing, and some of the solutions can be technically complex - but it will give you a good starting point.
European practice is broadly similar, again with country specific requirements, but the broad principles of primary, secondary and tertiary power distribution are similar to UK practice.
You can also get good information from the engineering sections of the American Institute of Architects guidelines for design and construction of healthcare facilities on a more global basis (for example middle east design might follow broadly EN standards or NEC standards depending on the specific location and who's paying the bill.
I can't give you specific details on Russian healthcare systems design practice - but again the principles of safe and secure power systems, with good back up and very specific protection against stray voltages in critical care applications are generally similar - it's all about resilience and continued operability in ever degrading conditions, before evacuation is necessary
Lighting systems are usually designed on a minimum of two circuits per space, and categorised such that you would aim for either 50% of normal lighting or 100% of normal lighting - colour rendering is crucially important as colour of the patient is a pretty good indicator of what may be going wrong (google Cyanosis for example)
Redundancy is almost certainly based on N+1 capability, with critical systems offered on a dual and/or dual unified basis to give N+N - eg a Hospital needing 4MVA would almost certainly have an A and B incomer based on a firm supply basis and standby generation for full load operation offered in N+1 grouping with something like 200 Hours of operational capability. HTM 06-01 mentioned above will give you a good understanding of Clinical Risk groupings - eg, if a patient can walk into a space for a basic examination, they can walk out in an emergency - so you don't need a great deal of redundancy - contrast that to someone comatose in a ICU bed, you will need primary power, secondary power back up and no break tertiary power coupled with medical isolated power systems to give the best possible chance of keeping them going in an emergency - you would wish that they can stay put as long as possible as moving them will probably kill them.
All of the power distribution system needs designing with fire in mind - which will help you decide "zoning" or diverse routing
