Chapter 2: Safety and Regulatory
Optima XR220amx X-Ray System 54400222-1EN Rev 1 DRAFT 11092010 2-14
Operator Manual © 2010 General Electric Company. All rights reserved.
Electrical Type
The table below describes the electrical protection rating based on system type.
Electrical Current
The table below describes the symbols for the different types of electrical current that may be used on
your system.
Ground
The table below describes the different types of grounding that may be used in your system.
Table 2-5 Electrical type
Symbol Description
Type B Equipment indicates the equipment provides a particular degree of
protection against electrical shock regarding leakage current and protective
earthing per IEC60601-1.
Table 2-6 Electrical current types
Symbol Description
Alternating Current indicates the equipment is suitable for alternating current
only.
Direct Current indicates the equipment is suitable for direct current only.
Both direct and alternating currents indicate the equipment is suitable for both
direct and alternating current.
Table 2-7 Ground types
Symbol Description
Functional Earth (ground) Terminal indicates a terminal directly connected to a
point of a measuring supply or control circuit or to a screening part, which is
intended to be earthed for functional purposes.
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