Since the Halo is mounted on a hard hat, that hard hat needs to meet ANSI standard Z89.1 Per ANSI guideline 1910.269(I)(8)(v)(C): "Arc-rated protection is not necessary for the employee's head when the employee is wearing head protection meeting 1910.135 if the estimated incident energy is less than 9 cal/cm2 for exposures involving single-phase arcs in open air or 5 cal/cm2 for other exposures.” Guideline 1910.135 refers directly to ANSI Z89.1.
The dielectric strength of the Halo is over 30,000V.
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