Element D Services Electrical ODG010107 D5090 Other Electrical Systems Part 1. General This section includes design standards and requirements for other electrical systems. This is a design standard and is not intended to be used as a specification. Part 2. Design Criteria 1. Emergency Power Distribution a. The emergency distribution panel boards, dry type transformers and branch circuit panel boards will be similar to those described for the normal power distribution system. b. As a minimum, and if applicable, emergency power will be provided for, but not limited to: 1) Stairwell Pressurization Fans 2) Egress and Security Lights 3) Fire Alarm System 4) Security System 5) Elevators, one per bank minimum 6) Fire Pumps 7) Sump Pumps (Storm and Sewage) 8) Communications Equipment 9) Building Automation System 10) Energy Management and Control System 11) Automatically Operated Doors 12) General Exhaust System 13) Centralized UPS 14) Operating Rooms 15) CCTV Cameras and Equipment c. Animal Holding Facilities: 1. For animal holding facilities, emergency power shall be provided for HVAC system equipment so that normal operations can be continued in the event of normal power failure. Emergency power shall be provided by a generator sized to maintain operation of animal room lighting, air supply, air exhaust, and data gathering system and primary major equipment. 2. The capacity of the generator fuel supply shall be discussed with Page 1 of 9
Animal Facility Director to determine an appropriate time level of the electrical backup. 3. Lighting and alarms associated with the life safety requirements will be provided with emergency power by the same generator. 4. Each animal room shall be supplied by emergency power as per project Facility Program document. 5. At least one of each type of equipment (e.g., tunnel washer, cage/rack washer, bulk autoclave) shall be connected to the emergency power system. 6. All electrical outlets for ventilated cage racks need to have emergency power supply. d. Evaluate and make recommendations to the Owner if a centralized UPS system should be considered for this project. e. For additional emergency power requirements, refer to project Facility Program document and individual mechanical and plumbing design guideline elements. f. Emergency power shall be provided for one elevator in each bank of elevators in high-rise buildings as defined by the National Fire Codes. A keyed selector switch shall be located on the ground floor allowing rescue personnel to select any elevator in the bank. 2. Essential Electrical Systems a. The Essential Electrical systems for hospitals shall comply with the Type 1 system as defined in NFPA 99 and shall consist of the emergency system and the equipment system. b. The emergency system shall consist of two separate branches The Life Safety Branch and Critical Branch, which shall provide power to the selected functions listed in NFPA 70 and 99. 3. Life Safety Branch, if applicable, shall supply power for the following devices: a. Alarm and Alerting Systems such as Fire Alarm and Medical Gas Systems b. Automatic Doors: Used for building egress c. Communication Systems: If used during emergency conditions, they shall include: i. Disaster Control or Emergency Communication Centers, i.e. communication equipment, selected receptacles and task illumination ii. Public Address System (PA) Page 2 of 9
d. Elevators: Cab lighting, controls, intercom, signal systems, and elevator machine room lighting e. Exit Signs f. Generator Set Location: Task illumination, battery charger for emergency battery-powered lighting units and selected receptacles g. Illumination of Means of Egress including corridors, stairwells, and building exits. Refer to NFPA 101 for definition of Means of Egress. Note: storage rooms, electrical rooms, mechanical rooms and other areas not part of the defined Means of Egress are not allowed to be connected to the Life Safety Branch. When emergency lighting is required for these areas, they are to be connected to Critical Branch. 4. Critical Branch, if applicable, shall supply power for task illumination, fixed equipment, selected receptacles, and special power circuits serving the following areas and functions related to patient care: a. Acute Nursing: Task illumination and selected receptacles b. Anesthetizing Locations: Task illumination, selected receptacles and fixed equipment; task illumination includes battery back-up c. Angiographic Laboratories: Task illumination, selected receptacles and selected power circuits including Angio x-ray unit d. Blood, Bone, Eye and Tissue Banks: Task illumination, selected receptacles and refrigerators e. Cardiac Catheterization Laboratories and Rooms: Task illumination, isolated power units, and Cath X-ray unit f. Coronary Care Unit: Task illumination and Prefabricated Bedside Patient Unit (PBPUs) g. Emergency Room Treatment Areas and Life Support Rooms: Task illumination and PBPUs including two receptacles. h. General Patient Bedrooms: Night lights, an alcove or a lavatory mirror light, two receptacles per bedwall, preferably in the PBPU, if available and a bathroom light i. Hemodialysis Rooms: Task illumination and one receptacle for each dialysis unit PBPU j. Human Physiology Labs: Task illumination, selected receptacles and selected circuits k. Intensive Care Units: Task illumination and PBPUs Page 3 of 9
l. Isolated Power Systems in special environments m. Medication Rooms and Medication Preparation Areas: Task illumination, selected receptacles and refrigerators n. Minor Operating Rooms: Task illumination, selected receptacles and isolated power units (if provided) o. Nurse Call System: Equipment p. Nurses Stations: Task illumination and selected receptacles q. Pharmacy Dispensing Area (including Satellite Pharmacies): Power files, laminar flow hoods, refrigerators, electrostatic copier (i.e., Telautograph) for transmittal of physicians' orders, task illumination and selected receptacles r. Psychiatric Bedrooms: Task illumination (ceiling only) s. Surgical Operating Rooms: Task illumination (50 percent of the general fluorescent fixtures above the surgery table including battery backup within two of these fixtures), each isolated power unit, each X-ray unit and one film processor per suite t. Surgical Recovery Rooms: Lighting fixture over each bed, two (one on dedicated circuit) receptacles for each bed (or PBPU), night lights for each bed (or PBPU) and emergency alarm circuits u. For telephone and equipment rooms and telecommunications closets, see M. D. Anderson Communications and Computer Services Premises Distribution System Standard referenced within Element Z, General Design Requirements. v. Ward Treatment Rooms: Task illumination and two receptacles per bed location. w. Dental Suites: Each ceiling track operatory surgical light, each dental operating unit, one duplex receptacle in each treatment area and a storage refrigerator x. Electrical Rooms and Closets: 50 per cent of lighting and 50 per cent of receptacles. Also, provide additional self-charging auxiliary battery operating lights in the main Electrical Switchboard Room y. Engineering Control Center and Mechanical Equipment Rooms: Task illumination and selected receptacles for operating and controlling internal auxiliary power, data gathering panels, control air compressors, dryers and any electric control for heating, ventilating and air-conditioning (HVAC) systems; and provisions for additional self-charging auxiliary battery operating lights z. Laboratory Service: Task illumination, selected receptacles in areas used to continue essential functions or critical experiments in the event of power failure, fume hoods, exhaust fans and refrigerators Page 4 of 9
aa. bb. cc. dd. Pharmacy Delivery Systems and Delivery Areas: Task illumination, selected receptacles Respiratory Care Beds: PBPUs; when PBPU is not provided, task illumination and two receptacles for each bed Security Station: Monitoring security alarm systems, task illumination, one receptacle, intrusion alarms at agent cashier, pharmacy, drug storage room in warehouse, office, retail store room and storage Special Procedure Rooms (Radiology): Task illumination, isolated power panels and X-ray unit 5. EQUIPMENT SYSTEM It shall supply power to major electrical equipment, necessary for patient care, listed in NFPA 70 and 99. 6. NON-DELAYED AUTOMATIC CONNECTION, if applicable, arrange the following generator accessories for non-delayed automatic connection to the alternate power source: a. Electrically operated louvers b. Other generator accessories essential for generator operation c. Transfer fuel pump d. Dumbwaiter d. Pneumatic tube 7. DELAYED-AUTOMATIC CONNECTION, if applicable, arrange the following equipment for delayed-automatic connection to the automatic connection to the alternate power source: a. Central Suction Systems: Vacuum pumps and oral evacuation pumps serving medical and surgical functions including control b. Sump pumps, sewage pumps, and other equipment required to operate for the safety of major apparatus, including associated control systems and alarms c. Compressed Air System: Medical and dental air compressors, serving medical and surgical functions including controls NOTE: Systems noted as a through c above may be connected to the critical branch. Discuss this with the Chief Engineer at the facility. d. Smoke control and stair pressurization e. Kitchen Hood Supply and/or Exhaust Systems: If required to operate during a fire in or under the kitchen hood Page 5 of 9
f. Elevators g. Heating Equipment: Operating Suites, Recovery, Intensive Care, Coronary Care, Infection and/or Isolation Rooms, Emergency Treatment Spaces and General Patient Rooms. Under certain conditions, NFPA 99 may not require heating of General Patient Rooms and Infection Isolation Rooms. h. Equipment and Control Systems for each Bank of Elevators: Design control systems to operate at least one elevator at a time and designate one elevator to serve the Surgical Suite during emergencies. i. Jockey pump or make-up pump for water-based fire protection systems j. HVAC for Surgical Suites, Intensive Care, Coronary Care and Emergency Treatment Spaces. k. Supply, return and exhaust ventilating systems for Infection Isolation Rooms, Protective Environment Rooms and exhaust fans for laboratory fume hoods, nuclear medicine areas where radioactive material is used, ethylene oxide evacuation, and anesthesia evacuation. These systems are permitted on delayed automatic system only and shall not be served via manual system. Some systems may be placed on Critical Branch. Coordinate with M. D. Anderson. l. Hyperbaric facilities m. Hypobaric facilities n. Automatic operated doors not used for building egress o. Autoclaving equipment p. Controls for equipment listed in this article q. Administrative Areas: Task illumination and selected receptacles in the hospital Director s, Engineering, and Security and Communications Suites r. Closed-loop water chilling equipment for linear accelerator s. Domestic Water Pumps: Equipment, control system, light fixture and receptacle near the pump t. Electric tape for heat tracing of chilled water and condenser water piping exposed to weather requiring freeze protection u. Exhaust fans serving Autopsy Rooms, reagent grade Water Treatment Rooms, Orthotic Laboratory special exhaust systems, battery charging areas, flammable Storage Rooms and Illustration Rooms (Medical Media) v. Fire pump equipment control system, light fixture and receptacle near the pump. See requirements in NFPA 20. Fire pump connection to generator shall be from Page 6 of 9
dedicated circuit breaker on generator. w. Heating, ventilating and air-conditioning (HVAC) Systems: (1) Air-conditioning equipment, lubricating oil pumps for centrifugal compressors, control air compressors, air dryer and absorption machine refrigerant pump to draw down lithium chloride before crystallization (omit for machines accomplishing this manually) (2) Chillers, chilled water circulating pumps, fans, and controls for surgical suites, recovery rooms, intensive care, and coronary care units (3) HVAC equipment for Bone Marrow Transplant (BMT) areas (4) HVAC equipment for Magnetic Resonance Imaging (MRI) Suites and Computerized Topographic (CT) Scanners (5) HVAC equipment serving emergency areas in outpatient clinics. (6) Back-up HVAC equipment for Telephone Equipment Rooms and Telecommunications Closets (7) Computer Room HVAC Systems x. Hot Water Circulatory and Steam Condensate Return Pumps: Equipment, controls, and light fixture and receptacle near the pumps y. Hot Water Generator: Equipment, controls, and light fixture and receptacle near the generator z. Kitchen Area: Task illumination, minimum equipment to feed patients during extended outage as defined by M. D. Anderson, frozen storage lockers and food refrigerators aa. Laboratory Air Compressors and Vacuum Pumps: Equipment, controls, and light fixture and receptacle near the compressors and pumps bb. Mortuary Refrigerator or Cold Room: Refrigeration Equipment and task illumination cc. Radiology Suite: Task illumination, one automatic X-ray film processor, and one X-ray unit dd. Refrigerated Medical Storage: Refrigeration Equipment ee. Sewage Pumps: Equipment, controls, and light fixture and receptacle near the pumps ff. Supply, Processing, and Distribution (SPD): (1) Task illumination and selected receptacles in the following areas: core, Page 7 of 9
sterile storage, non-sterile storage, preparation, and decontamination (2) One ultrasonic cleaner (3) One steam sterilizer (4) One washer sterilizer (5) One gas generator (6) Equipment in warehouse areas needed to preserve subsistence drugs and X-ray film materials that may be subjected to damage from infestation, humidity, or temperature gg. Ventilation and control equipment for electrical equipment rooms hh. Ventilation, cooling and control equipment for elevator machine rooms 8. ALTERNATE SOURCES OF POWER The alternate source of power shall be one or more diesel-engine-driven generator sets. 9. Distribution Equipment a. Do not locate the first level of distribution of the Essential Electrical System, such as the generators and distribution panels, in the same room with other power systems. b. Transfer switches shall be limited to 800 amperes maximum size and located to provide the highest practicable reliability in service to the load. This generally means minimizing the switch-to-load distance. Note: All emergency feeders to transfer switches must have two hour fire protection. c. All transfer switches shall include the maintenance-bypass option; and an exercising control panel shall be incorporated so as to allow testing of each remotely located transfer switch from a central location, such as the generator room. 10. Grounding a. If changes to the existing grounding system are needed, they shall be done in accordance with M. D. Anderson standards, as described in 16450 Grounding Electrical Specification. b. The building grounding system will be designed and tested in accordance with Sec. 9.03 of IEEE 81 to have a resistance less than 10 ohms. c. An equipment ground system will be provided consisting of separate ground conductor run with all electrical feeders and branch circuits. This ground system will be connected to the structural ground system. 11. Lightning Protection System Page 8 of 9
Roof Lightning protection shall be provided in accordance with M. D. Anderson requirements, Lightning Protection Institute Standard LP1-175, National Fire Protection Association Code NFPA 780, and Underwriters Laboratories Standard UL 96A and UL 96. Part 3. Special Contract Document Requirements Not Applicable Part 4. Products 1. All equipment must be listed and approved by a testing laboratory that has been approved by the Texas State Fire Marshal s Office. This listing is to be for all functions required by this standard. 2. All animal room outlets on emergency power shall be standard type with waterproof covers to allow for cleaning. 3. All animal room light fixtures on emergency power shall be sealed to prevent the access of vermin to the room, and all fixtures shall be watertight units to resist wet cleaning of the room. 4. Refer to M. D. Anderson Master Construction Specifications. Document Revision History Issue Date Revision Description Revisor 01-01-07 Initial Adoption of Element Rev. 1 Rev. 2 Rev. 3 Rev. 4 Rev. 5 Page 9 of 9