What is a straight-blade plug used for?

Straight-blade plugs mate with compatible straight-blade connectors and female receptacles. They are used in settings such as office buildings, factories, and manufacturing plants.

What is a straight-blade receptacle?

Straight-blade receptacles allow matching straight-blade plugs to be connected to an electrical supply. They are used in settings such as office buildings, factories, and manufacturing plants.

What is the sideways plug called?

20-amp receptacles have a horizontal slot branching off one of the vertical slots. Appliances, such as microwaves, often have 20-amp plugs and must be plugged into a 20-amp outlet. Electrical plugs designated as 20-amp will not fit into 15-amp outlets.

When should you use a lock plug?

These locking plugs and connectors are primarily used by welders, construction workers, contractors, and industrial job sites. In many of these cases, they are using machinery or tools that vibrate a lot, and the workers don’t want to risk having their heavy machinery come unplugged.

What is a Decora receptacle?

Decora Devices – The Decora switch is the newer type of light switch shaped in a large rectangle that is roughly 1.25″ wide by 2.5″ tall. These have many alternate names including decorator, designer, rocker, paddle, block, flat or wide switches although it is most commonly referred to as a Decora switch.

Why do some plugs have a sideways prong?

This orientation would reduce the chance of metal (bracelet or necklace) contacting the line and neutral when plugging or unplugging a cord. Screws on each side are connected together by a metal tab that can be removed to isolate the screws.

Why do some outlets have a sideways T?

The T-shaped slot indicates that the 120-volt receptacle is rated for 20-amps. Regular wall receptacles with a pair of vertical slots are rated for only 15-amps, but the T-shape enables it to accept either a 15- or 20-amp plug.

Which side of a polarized plug is hot?

smaller prong
The high voltage (about 120 volts effective, 60 Hz AC) is supplied to the smaller prong of the standard polarized U.S. receptacle. It is commonly called the “hot wire”. If an appliance is plugged into the receptacle, then electric current will flow through the appliance and then back to the wider prong, the neutral.

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