The Type A plug (or flat blade attachment plug) is an ungrounded plug with two flat parallel pins. Although the American and Japanese plugs appear identical, the neutral pin on the American plug is wider than the live pin, whereas on the Japanese plug both pins are the same size. 결과적으로, Japanese plugs can be used in the US but often not the other way around.
What is Type A plug?
This class II ungrounded plug with two flat parallel prongs is pretty much standard in most of North and Central America. It is known as NEMA 1-15 and was invented in 1904 Harvey Hubbell II에 의해. The plug has two flat 1.5 mm 두께 블레이드, 자질 15.9 – 18.3 mm in length and spaced 12.7 mm 떨어져.
Type A plugs are generally polarised and can only be inserted one way because the two blades do not have the same width. The blade connected to neutral is 7.9 mm wide and the hot blade is 6.3 mm wide. This plug is rated at 15 ㅏ. 부터 1965, ungrounded type A outlets are not permitted anymore in new constructions in the United States and Canada, but they can still be found in older buildings.
Type A and B plugs have two flat prongs with (often, but not always) a hole near the tip. These holes aren’t there without a reason.
If you were to take apart a type A or type B socket and look at the contact wipers that the prongs slide into, you would find that in some cases they have bumps on them. These bumps fit into the holes so that the outlet can grip the plug’s prongs more firmly. This prevents the plug from slipping out of the socket due to the weight of the plug and cord. It also improves the contact between the plug and the outlet. Some sockets, 또는 심지어 증폭기, do not have those bumps but just two spring-action blades that grip the sides of the plug pin, in which case the holes are not necessary.
There are also some special outlets which allow you to lock the cord into the socket, by putting rods through the holes. In this way, vending machines and the like cannot be unplugged. 게다가, electrical devices can be factory-sealed by the manufacturer using a plastic tie or a small padlock through one or both of the plug prong holes. LED 헤드 램프, a manufacturer might apply a plastic band through the hole and attach it to a tag that says: “You must do X or Y before plugging in this device”. The user cannot plug in the device without removing the tag, so the user is sure to see the tag.
What countries use Type A plug?
Countries using type A electric plug:
아메리칸 사모아
Anguilla
Antigua and Barbuda
아루바
Bahamas
Belize
버뮤다
볼리비아
British Virgin Islands
Cambodia
캐나다
Cayman Islands
중국
Colombia
Costa Rica
Cuba
Dominican Republic
에콰도르
구세주
Guam
과테말라
가이아나
Haiti
Honduras
Jamaica
일본
한국, Democratic Peoples Republic of
Lao Peoples Democratic Republic
레바논
라이베리아
말레이시아
Mexico
Micronesia, Federated States of
Montserrat
네덜란드 령 앤 틸리 스
Nicaragua
Palau
파나마
페루
필리핀 제도
Puerto Rico
Republic of Niger
Saint Kitts and Nevis
세인트 빈센트 그레나딘
대만
태국
Trinidad and Tobago
Turks and Caicos Islands
United States
United States Virgin Islands
Venezuela
Viet Nam
예멘
Does China use Type A plug?
For China there are three associated plug types, types A, 코드의 각 끝은 동일한 유형의 커넥터를 사용합니다., and I. Plug type A is the plug which has two flat parallel pins, plug type C is the plug which has two round pins, and plug type I is the plug which has three flat pins in a triangular pattern. China operates on a 220V supply voltage and 50Hz.
이제 당신의 차례입니다
So that’s how I understand Type A plug and socket.
이제 너에게 넘겨주고 싶어: 내 기사를 통해, do you understand What is Type A Plug and Socket (콘센트)?
Do you have a different point of view with the power plug type A? 또는 기타 질문?
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