110.16 2005 NEC Clearly states :The markings SHALL be located so as to be CLEARLY VISIBLE to qualified persons, before examination, Adjustment, Serviceing, or maintance of the equipment. Also they must be Field installed.
FPN 2 below 110.16 (ANSI Z535.4-1998 )Product Safety sign and Lables Provide guide lines.
70E : a Arc Flash Hazard Analize MUST be done prior to allowing a worker to work on engerized equipment.That information must be availible to all employees that work on that gear,Most if not all companys I've dealt with put the stickers on with the required information on the gear, As its the Owners responsibility to make sure there employees have that. the proper tools, training ,equipment, ect to do the job safetly.
130.7 (E) Alerting techniques:
Safety Sign & tags.
Such signs and tags SHALL meet the requirements of ANSI Z535 given in table 130.7(F)
