The Engineer shall coordinate with the local hospital for conduit size
requirements.
(1) Medical and Surgical Intensive Care Units
(2) Coronary Care Units
(3) General Purpose Intensive Care Units
(4) Ten percent of Respiratory Care Beds
(5) Between the Cardiac and Neurosurgical Operating Rooms and the
Equipment Recording Rooms
2.7 CONDUCTORS
Use single copper conductors. Use No.12 AWG minimum size for 600 V
(volt) and less. No.12 AWG and No.10 AWG shall be solid conductor.
(a) Insulation: Coordinate with VA Master Construction Specifications.
(b) Isolated Power System: Install all wiring in internally coated
rigid steel conduits with or without an external coating.
2.8 GROUNDING
Equipment Grounding Conductors: Coordinate with VA Master Construction
Specifications and show on the drawings.
(a) Grounding Metal Curtain Walls
(1) To assure that personnel are not exposed to electrical shock, all
exterior metal sheathing of buildings shall be grounded.
(2) For buildings having perimeter not exceeding 76 m (250 ft.), the
sheathing shall be grounded at diagonally opposite corners of the
building.
(3) Buildings exceeding 76 m (250 ft.), the perimeters shall be
grounded such that the spacing between grounding points does not exceed
30 m (100 ft.).
(4) A ground point shall consist of a driven ground rod and brazed
connection to the building sheath. A No. 6 AWG bare copper conductor
shall be used to connect the sheath to the ground rod.
(5) Where a Lightning Protection System is provided for the building,
the sheath shall also be bonded at each down conductor location.
2.9 MOTOR DISCONNECT SWITCHES
Provide all motors with a local disconnect switch (unfused unless
required otherwise) located at the motor or a maximum of 1500 mm (5
ft.) away within sight. Clearly indicate this requirement on the
Contract Drawings.
ELECTRICAL DESIGN MANUAL
2-2
RECEPTACLE AND POWER REQUIREMENTS
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