Appendix A Electrical Equipment Hazard Labeling

Engineering Division Electronic Equipment Build Standard Appendix A, Electrical Equipment Hazard Labeling
Revision 1

A.1 Electrical Equipment Hazard Labeling
A.1.1 Definitions
Danger: Indicates a hazardous situation which, if not avoided, will result in death or serious injury. The signal word "DANGER" is to be limited to the most extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved.
Warning: Indicates a hazardous situation which, if not avoided, could result in death or serious injury. WARNING [signs] should not be used for property damage hazards unless personal injury risk appropriate to this level is also involved.
Caution: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION [signs] without a safety alert symbol may be used to alert against unsafe practices that can result in property damage only.
Notice: Is preferred to address practices not related to personal injury. The safety alert symbol shall not be used with this signal word. As an alternative to “NOTICE” the word “CAUTION” without the safety alert symbol may be used to indicate a message not related to personal injury. A.1.2 Shock Hazard Labeling for Electrical Utilization Equipment Enclosures that do not clearly show that they contain electrical devices shall be marked with one of the following cautionary labels or equivalent, as well as a specific voltage level label. Equipment that is powered from more than one source shall also be labeled. A.1.2.1 Cord-and-Plug Equipment:
Cord-and-plug equipment may be marked with the following label:

Figure 1, Clarion P/N H6010/6032-CJDHBU
A.1.2.2 Hard-wired fixed equipment:
Hard-wired fixed equipment may be marked with the following label:

Engineering Division Electronic Equipment Build Standard Appendix A, Electrical Equipment Hazard Labeling
Revision 1

Figure 2, Clarion P/N H6010/6011-4LDHBU
A.1.3 Voltage Labels:

Figure 3, Various specific voltage level labels

Engineering Division Electronic Equipment Build Standard Appendix A, Electrical Equipment Hazard Labeling
Revision 1
A.1.4 Multiple Sources
Equipment that is powered from more than one source may be labeled as follows:

Figure 4, Multiple voltage source label

A.2 Custom Labels
A.2.1 Standards
Custom labels should be designed based on ANSI Z535.3 Criteria for Safety Symbols and ANSI Z535.4 standard for Product Safety Signs and Labels.