Regulated Minimum Working Clearance By Major Subsystem; Gantry Subsystem - GE Discovery NM/CT 670 Instructions Manual

Regulatory Clearances
D.1.2 Regulated Minimum Working Clearance by Major Subsystem
Requirements apply to equipment operating at 600V or less, where examination, adjustment,
servicing, or maintenance is likely to be performed while live parts are exposed.
Direction of Service Access is defined as perpendicular to the surface of the equipment being
serviced. Required regulatory clearance distances must be maintained and may not be used for
storage. This includes normal system operation as well as service inspection or maintenance.
For the gantry and table, distances are measured from the enclosure, not the finish covers.
Table D-1: Gantry Subsystem
Work Space
Requirement
Direction of service access
(all sides)
Service access width
(left-right of workspace)
Discovery NM/CT 670 – Standard Integration Instructions
5483063-1EN, Rev.2, ©2015 GE Healthcare
Minimum Clear
Space
914 mm (36") If exposed live parts of 151 - 600 volts are present, 1219 mm (48 in.) on both
sides of workspace with the operator between is required.
If the opposite wall is grounded and exposed live parts of 151 - 600 volts are
present, 1067 mm (42 in.) is required.
762 mm (30") This is the width of the working space in front of the equipment.
A minimum of 762 mm (30 in.) or the width of the equipment, whichever is
greater, is required.
D.1.2 Regulated Minimum Working Clearance by Major Subsystem
Additional Conditions
D-3
D.1 Regulatory Clearances