Lighting Requirements; Connectivity Requirements; Electrical Notes - GE SIGNA PIONEER Installation Manual

LIGHTING REQUIREMENTS

All lighting fixtures and associated components must meet all RF shielded room and RF grounding
requirements (e.g., track lighting is not recommended due to possible RF noise).
All lighting must use direct current (the DC must have less than 5% ripple).
300 lux must be provided at the front of the magnet for patient access and above the magnet for servicing.
Fluorescent lighting must not be used in the magnet room.
Lighting must be adjusted using a discrete switch or a variable DC lighting controller.
Scr dimmers or rheostats must not be used.
DC led lighting may be used if the power source is located outside the magnet room RF.
Battery chargers (e.g., used for emergency lighting) must be located outside the magnet RF room.
Short filament length bulbs are recommended.
Linear lamps are not recommended due to the high burnout rate.

CONNECTIVITY REQUIREMENTS

Broadband Connections are necessary during the installation process and going forward to ensure full support
from the Engineering Teams for the customers system. Maximum performance and availability for the customers
system is maintained and closely monitored during the lifetime of the system. Proactive and reactive maintenance
is available utilising the wide range of digital tools using the connectivity solutions listed below:
Site-to-Site VPN/GE Solution
Site-to-Site VPN/Customer Solution
Connection through Dedicated Service Network
Internet Access - connectivity for InSite 2.0
The requirements for these connectivity solutions are explained in the broadband solutions catalogue (separate
document).
Typical SIGNA PIONEER EN-MRI-TYP-SIGNA_PIONEER-WEB.DWG

ELECTRICAL NOTES

1. All wires specified shall be copper stranded, flexible, thermo-plastic, color coded, cut 10 foot long at outlet
boxes, duct termination points or stubbed conduit ends. All conductors, power, signal and ground, must be
run in a conduit or duct system. Electrical contractor shall ring out and tag all wires at both ends. Wire runs
must be continuous copper stranded and free from splices.
1.1. Aluminum or solid wires are not allowed.
2. Wire sizes given are for use of equipment. Larger sizes may be required by local codes.
3. It is recommended that all wires be color coded, as required in accordance with national and local electrical
codes.
4. Conduit sizes shall be verified by the architect, electrical engineer or contractor, in accordance with local or
national codes.
5. Convenience outlets are not illustrated. Their number and location are to be specified by others. Locate at
least one convenience outlet close to the system control, the power distritbution unit and one on each wall of
the procedure room. Use hospital approved outlet or equivalent.
6. General room illumination is not illustrated. Caution should be taken to avoid excessive heat from overhead
spotlights. Damage can occur to ceiling mounting components and wiring if high wattage bulbs are used.
Recommend low wattage bulbs no higher than 75 watts and use dimmer controls (except mr). Do not mount
lights directly above areas where ceiling mounted accessories will be parked.
7. Routing of cable ductwork, conduits, etc., must run direct as possible otherwise may result in the need for
greater than standard cable lengths (refer to the interconnection diagram for maximum usable lengths point
to point).
8. Conduit turns to have large, sweeping bends with minimum radius in accordance with national and local
electrical codes.
9. A special grounding system is required in all procedure rooms by some national and local codes. It is
recommended in areas where patients might be examined or treated under present, future, or emergency
conditions. Consult the governing electrical code and confer with appropriate customer administrative
personnel to determine the areas requiring this type of grounding system.
10. The maximum point to point distances illustrated on this drawing must not be exceeded.
11. Physical connection of primary power to GE equipment is to be made by customers electrical contractor with
the supervision of a GE representative. The GE representative would be required to identify the physical
connection location, and insure proper handling of GE equipment.
12. GEHC conducts power audits to verify quality of power being delivered to the system. The customer's
electrical contractor is required to be available to support this activity.
All junction boxes, conduit, duct, duct dividers, switches, circuit breakers, cable tray, etc., are to be supplied
and installed by customers electrical contractor.
Conduit and duct runs shall have sweep radius bends
Conduits and duct above ceiling or below finished floor must be installed as near to ceiling or floor as possible
to reduce run length.
Ceiling mounted junction boxes illustrated on this plan must be installed flush with finished ceiling.
All ductwork must meet the following requirements:
1.Ductwork shall be metal with dividers and have removable, accessible covers.
2.Ductwork shall be certified/rated for electrical power purposes.
3.Ductwork shall be electrically and mechanically bonded together in an approved manner.
4.PVC as a substitute must be used in accordance with all local and national codes.
All openings in access flooring are to be cut out and finished off with grommet material by the customers
contractor.
General contractor to insert pull cords for all cable run conduits between the equipment room and the
operators control room.
10 foot pigtails at all junction points.
Grounding is critical to equipment function and patient safety. Site must conform to wiring specifications
shown on this plan.
Rev A Date 23/Jul/2018 E1 - Electrical Notes 19 /24