All electrical products sold in the US or Canada must meet electrical certification guidelines before they can be marketed. These certified products must have a polarized plug to reduce the hazard of electrical shock. The polarized plug has another safety feature, a ground prong, making it a three-prong plug.
Vintage appliances or lighting fixtures should not be put into use unless the old unsafe two-prong non-polarized type of plug has been changed to a certified polarized plug and meets current electrical standards and regulations.
Electrical cords and polarized plugs should be checked occasionally for any signs of deterioration. If such is detected, discontinue use until the damaged area is replaced with a certified part. Handle electrical cords and polarized plugs with care, never try to force the plug into an outlet and avoid bending the prongs.
Read More About Home Safety:
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Child-Proofing Your Home Video
Choosing a Safe Stepladder
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