Environmental Dangers
Vivid T9/Vivid T8 – Basic Service Manual 2-23
5795591-100 English Rev. 3
2-4 Environmental Dangers
2-4-1 Patient Vicinity UL60601-1 (USA)
Commercial devices such as laser cameras, printers, VCRs and external monitors,
usually exceed allowable leakage current limits and, when plugged into separate AC
outlets, are in violation of patient safety standards. Suitable electrical isolation of such
external AC outlets, or providing the device with extra protective earth, will be required
in order to meet UL60601-1 and IEC60601-1 / IEC60601-1-1 standards for electrical
leakage.
2.12.20DV (UL60601-1:2003)
In area in which patients are normally cared for, the patient vicinity is the space with
surfaces likely to be contacted by the patient or attendant who can touch the patient.
This encloses a space within the room 1.83 m (6 ft.) beyond the perimeter of the bed
(examination table, dental chair, treatment booth, and the like) in its intended location,
and extending vertically 2.29 m (7.5 ft.) above the floor.
1. Patient environment
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