欧美色欧洲免费无线码,99热这里只有精品国产免费免费,久久精品国产精品亚洲蜜月,无码人妻精品丰满熟妇区,亚洲自偷自偷在线成人网址,日韩精品无码熟人妻视频,久久久精品456亚洲影院,国产精品国产三级国产AV品爱网 ,亚洲男人第一AV网站,在线观看麻豆国产成人AV在线播放

            首頁 > 最新資訊 > 行業(yè)新聞 > IP level standard

            IP level standard

            IP indicates access protection.


            International Electrotechnical Commission "Protection Classes of enclosures (IP codes)".


            Protection Class (IP code) IEC 60529 defines the classification of the protection class of electrical equipment to prevent foreign objects (such as tools, dust, fingers) and damp gases from entering its housing. This classification method is represented by the letter "IP" (access protection) followed by two numbers.


            Protection Level - the first number


            The first digit of the IP code indicates the degree of protection from the human body touching the moving parts and the degree of protection from solid foreign objects entering the enclosure of the device.


            0 - No special protection

            1 - Prevent large parts of the body (such as the hands) or prevent the entry of solid materials with a diameter greater than 50mm

            2 - Prevent entry of objects not exceeding 80mm in length and 12mm in diameter

            3 - Prevent tools, wires and other objects with a diameter or thickness greater than 2.5 mm from entering

            4 - Prevent the entry of solid materials with a diameter or thickness greater than 1.0 mm

            5 - Prevent dust and dirt from affecting device operation

            6 - Completely dust proof



            Protection Level - second number


            The second number indicates the degree of protection to prevent water from entering the equipment housing in various forms (such as dripping, spraying, dipping, etc.).


            0 - No special protection

            1 - Prevent water from dripping vertically

            2 - Prevent water from dripping at an Angle of no more than 15°

            3 - Prevent water from spraying in

            4 - Prevent water from splashing in

            5 - Prevent water from pouring into the nozzle

            6 - Prevent large amounts of seawater or water with jet pressure from entering

            7 - Prevent water from entering during short immersion

            8 - Prevent water from entering during a complete, continuous submerged process (submerged at a depth of at least 1 meter for 15 minutes).


            Copyright ? 2017 東莞市云億電子科技有限公司 All Rights Reserved.
            粵ICP備17152458號

            午夜香吻免费观看视频在线观看| 2020国产精品香蕉在线观看| 亚洲日韩高清在线亚洲专区| 国产成人毛片在线视频| 四虎影视在线观看2413| 成人区人妻精品一区二区不卡网站 | 人人妻人人澡人人爽欧| 国产成人精品高清在线观看93| 亚洲成A人片在线观看中文无码 | 中文字幕乱码中文| 最近2019中文字幕第一页视频| 色鲁97精品国产亚洲| 中国chain同志gay网站| 99久久ER这里只有精品18| 高清自拍亚洲精品二区| 亚洲国产综合精品一区| 孕妇奶水仑乱A级毛片在线播放| 收集最新中文国产中文字幕| 麻豆AV一区二区天美传媒| 日韩精品成人无码专区免费| 日韩一区二区三区四区在线观看视频 | 野花社区在线观看高清3| 99re66这里只精品国产| 亚洲人护士毛茸茸| 亚洲色无码中文字幕YY51999| 九九久久男人精品视频| 6699嫩草久久久精品影院| 国产杨幂AV在线播放| 欧美日韩一区二区三区精彩视频| 中国女人free性hd国语| 在线精品亚洲观看不卡欧| 日本在线A一区视频高清视频| 日韩精品亚洲人旧成在线| 国产精品丝袜高跟鞋| 在线理论三级午夜电影| 久久99精品久久久久蜜芽| 日本韩国国语对白一区二区三区| 啪啪后入内射日韩| 狼人亚洲国内精品自在线| 97性潮久久久久久久久国产| 成人在线观看|