IP (Ingress Protection) Codes 防護等級代號
1.中文
IPxx 防塵防水等級
防塵等級 (第一個X表示) 防水等級 (第二個X表示)
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0 ：沒有保護 0 ：沒有保護
1 ：防止大的固體侵入 1 ：水滴滴入到外殼無影響
2 ：防止中等大小的固體侵入 2 ：當外殼傾斜到 15 度時，水滴滴入到外殼無影響
3 ：防止小固體進入侵入 3 ：水或雨水從 60 度角落到外殼上無影響
4 ：防止物體大於 1mm 的固體進入 4 ：液體由任何方向潑到外殼沒有傷害影響
5 ：防止有害的粉塵堆積 5 ：用水沖洗無任何傷害
6 ：完全防止粉塵進入 6 ：可用於船艙內的環境
7 ：可於短時間內耐浸水（ 1m ）
8 ：於一定壓力下長時間浸水
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2.英文原文：
The applicable European standards for ingress protection are:
- BS EN 60529 Specification of Degrees of Protection Provided by Enclosures
- IEC 529 Specification of Degrees of Protection Provided by Enclosures
Both of these provide a numerical code to help classify the degree of protection offered, as shown below:
The first digit:
The first digit of the IP code indicates the degree that persons are protected against contact with moving parts (other than smooth rotating shafts, etc.) and the degree that equipment is protected against solid foreign bodies intruding into an enclosure.
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0 No special protection
1 Protection from a large part of the body such as a hand (but no protection from deliberate access); from solid objects greater than 50mm in diameter.
2 Protection against fingers or other object not greater than 80mm in length and 12mm in diameter.
3 Protection from entry by tools, wires, etc., with a diameter of thickness greater than 1.0mm.
4 Protection from entry by solid objects with a diameter or thickness greater than 1.0mm
5 Protection from the amount of dust that would interfere with the operation of the equipment.
6 Dust tight.
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The Second Digit:
The second digit indicates the degree of protection of the equipment inside the enclosure against the harmful entry of various forms of moisture (e.g. dripping, spraying, submersion, etc.
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0 No special protection
1 Protection from dripping water.
2 Protection from vertically dripping water.
3 Protection from sprayed water.
4 Protection from splashed water.
5 Protection from water projected from a nozzle
6 Protection against heavy seas, or powerful jets of water.
7 Protection against immersion.
8 Protection against complete, continuous submersion in water.
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In North America, the NEMA classification is used in preference to the IEC codes shown above.
The IEC and NEMA degrees of protection can not be fully compared as equivalent ratings - see below. The NEMA Standard includes tests for environmental conditions such as mechanical damage, corrosion, rusting, ice formation, etc.
Further information can be found about the North American classification scheme in NEMA Standard Publication 250 and UL 40 Standard Publication.
NEMA Enclosure Type Number ApproximateIEC Classification
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1 IP 10
2 IP 11
3 IP 54
3R IP 14
3S IP 54
4 and 4X IP 56
5 IP 52
6 and 6P IP 67
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相關連結：
．Wiki - IP Code
．IP - Ingress Protection Ratings
．Ingress Protection Ratings (IP Codes)
．IP Code符號表示
．另一種表示
．JIS日本國家防水等級區別
．IP等級檢測方法
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