What OSHA regulation states that commercial vacuums need to have 3 prong cords?

[amtraksebo1997]

This is for a school project. I need it ASAP. If anybody knows, please link it here.

 

[panasonicvac]

This is technically for safety reasons. The National Electric Code Section 406.4(D)(1) states that any grounding path must be grounded. Prevents of electrical shocks, fires, or malfunctions. Especially if being used outside or on wet surface areas.

 

[lesinutah]

They

Don't have to be 3 prong. They just have to have UL certification for proper grounding cord size etc.

 

[blackheart]

Not sure but....

Double insulated devices can also be utilized. Like Numatic vacuums.

 

[luxlife]

It used to be that when I stayed at a hotel and saw that they were using household vacuums, it made me wonder what else they were cutting corners on.