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The ground tab is designed to be attached to the outlet faceplate screw, which is supposed to be connected to the building electrical ground. A cheater plug, AC ground lifter or three-prong/two-prong adapter is an adapter that allows a NEMA 5-15P grounding-type plug (three prongs) to connect to a NEMA 1-15R non-grounding receptacle (two slots).
The ground pin is round, like those on straight-blade NEMA grounding devices. Referring to the picture, the orientation is the same as the NEMA 5 plug and receptacle, with the neutral blade on the lower right. Adapters are available with the TT-30P plug on one side and a 5-15R or 5-20R receptacle on the other side.
The NEMA 5-15 plug has two flat parallel blades like NEMA 1-15, and a ground (earth) pin. [46] It is rated 15 A at 125 volts. The ground pin is longer than the line and neutral blades, such that an inserted plug connects to ground before power. The ground hole is officially D-shaped, although some round holes exist.
A ground lift plug may refer to: A cheater plug which interrupts the ground or earth connection in a power connection. A ground lift device used for professional audio systems and electronic instrumentation to eliminate ground loop inconveniences and establish connection when only a two prong receptacle is available.
Within each size group, the plugs and sockets are keyed with certain "lugs" protruding on the outside of the plugs. [27] Higher current plugs have more lugs to prevent them from being inserted into a lower current socket outlet, while still allowing them to be inserted into a socket outlet of the same size group rated for a higher current.
bell adapters which are like mechanical joint adapters but contain a stainless steel backup ring to maintain a positive seal against the mating flange [9]: 347 flange adapters which attach to a polyethylene pipe with butt fusion to stiffen a junction and allow another flanged pipe or fitting to be bolted on [ 9 ] : 341
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Removal of the safety ground connection on equipment can expose users to an increased danger of electric shock and may contradict wiring regulations. [1] The safety ground is disconnected by an adaptor (cheater plug) in a power lead in which the ground conductor is deliberately disconnected, or by cutting a ground pin in the power plug. If a ...
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