This section is applicable to laser systems and x-ray equipment used in research. Both fixed and portable equipment are covered regardless of input voltage. Only electrical hazards are addressed in this subsection. Refer to ANSI Z136.1 for laser hazards and 29 CFR 1910.306 (f) for x-ray hazards.

10.10.5.1 HAZARDS

1. Dangerous voltages are present inside the equipment.

2. Implosion hazards may exist with the covers removed.

3. Energy storage devices may present a hazard due to a residual charge even when the system is de-energized

4. Dangerous voltages can exist across the impedance of the grounding conductor during operation.

5. Failure of interlocks and safety devices may allow access to energized parts.