422.51 Cord-and-Plug-Connected Vending Machines
Part III. Disconnect
Cord-and-plug-connected vending machines manufactured or re-manufactured on or after January 1, 2005 must include a ground-fault circuit interrupter as an integral part of the attachment plug. Cord-and-plug-connected vending machines not incorporating integral GFCI protection must be connected to a GFCI protected outlet.
This change was driven by three electrocutions since 1995; two of the deaths were to children when they touched the energized metal parts of a vending machine. Because electric vending machines are often located in damp or wet locations, in public places, and are used by people standing on the ground, reliance on an equipment grounding (bonding) conductor for protection against electrocution is insufficient.
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