GE SIGNA Voyager - Cable Tray Requirements and Examples; Recommended Cable Groupings

2.2.1 Recommended Cable Groupings
We recommend the grouping order shown below. The cable groups must not touch. Local code
may require dividers, channeling, bundling, etc.
•
Group a — Gradient and RF common ground cables. In the Magnet room, the gradient
cable group must be laid in a single layer. The center of cable group “a” is 3.5 in. (89 mm)
from the inside edge of the tray, in line with the magnet center
•
Group b — Coax, RF, and AC power cables with jacket rating of 600V and above
•
Group c — Data and fiber optic and 300V coax or RF clock cables
•
Group d — 300V signal, 300V power, and 300V power/signal cables
•
Group e — Air, water, and cryogen lines
Illustration 6-3: Cable Groupings
2.2.2 Cable Tray Requirements and Examples
1. The gradient cable support must end at the back of the magnet 49 ±0.5 in. (1245 ±12 mm)
from geometric isocenter. See item A in Illustration 6-4, Illustration 6-5, and Illustration 6-6.
2.
Supports for all other cables and hoses must end at the back of the magnet 34 ±0.5 in. (864
±12 mm) from geometric isocenter. See item B.
3.
Cable supports must have a minimum height of 101.5 in. (2578 mm) at the back of the
magnet measured from the floor. See item C in Illustration 6-4.
4.
The top of the cable tray must be less than 128 in. (3251 mm) above the finished floor. See
item D in Illustration 6-4.
SIGNA Voyager Pre-Installation
Direction 5680008–1EN, Revision 2
Chapter 6 System Interconnections 135