国产99视频精品免视看9,久久久久高潮毛片免费全部播放,欧美日韩精品一区二区视频,久久精品噜噜噜成人av

Test method for lamps made by large engineering lamp customization manufacturers

2022-04-08 533

Generally speaking, the lamps and lanterns of the hotel are customized engineering lamps, because our household lighting lamps and lanterns can not be used as the lamps and lanterns of the hotel, so the lamps and lanterns we see in the hotel are relatively rich crystal lamps and so on. After the engineering lamps and lanterns are customized, how should we inspect the goods in the later inspection.

General test methods for engineering lighting customization. According to the regional specifications customized for engineering lamps, the corresponding voltage and leakage current shall be debugged first. Then connect the wire at one end of the voltage withstand machine to the positive pole of the outlet of the lamp & lt; The switch is open & gt;, Then connect the conductor at the other end of the voltage withstand machine with the conductivity gun & lt; Or conductive rod & gt; Open to the outer metal part of the lamp and hit it immediately. If there is no sound from the press, the power line of this pole of the lamp has been inspected; Otherwise, there will be leakage or breakdown.

大型工程燈定制廠家

Check the negative power line of the lamp in the same way and pay attention to personal safety. Next, the engineering lamps can be customized. Turn the bulb on the lamp cap and connect it to the power line to initiate switch inspection. If one end of the lamp is a custom-made metal lamp cap, and the other end of the lamp cap is a metal lamp cap, the other end of the lamp cap is a custom-made one. It can also be checked with an electrode meter. The method is the same. If the pointer shakes, it will open the circuit, otherwise it will open the circuit. Customized polarity of engineering lamps is distinguished. Black is the positive pole and white is the negative pole of a single power line. The customized two core power cord for engineering lamps has one word as the positive pole and one without word as the negative pole. The small end of the polarity plug is positive and the large end is negative. The metal in the center of the customized lamp cap of engineering lamps is the positive pole, and the metal on the surrounding surface is the negative pole. For the customization of engineering lamps, the negative end of the electrode meter contacts the negative end of the power line or plug, and the positive end of the electrode meter contacts the negative end of the lamp cap. The needle movement is correct, and vice versa.

Article from: large engineering lamp customization manufacturer www.wenfengds. com

永久免费不卡在线观看黄网站| 无码av免费精品一区二区三区| 日本免费人成视频播放| 理论片午午伦夜理片影院| 亚洲产国偷v产偷v自拍色戒| 国内精品久久久久久久久齐齐| 在线观看老湿视频福利| 久久精品动漫一区二区三区| 少妇又色又紧又爽又刺激视频 | 99久久夜色精品国产网站| 国产suv精品一区二区33| 亚洲不卡中文字幕无码| 日本一卡二卡不卡视频查询| 国产成a人亚洲精品无码樱花| 极品人妻videosss人妻| 色哟哟最新在线观看入口| 风流老太婆bbb有毛| 久久综合亚洲色hezyo国产| 日本精品少妇一区二区三区| 男女性爽大片视频| 精品少妇人妻av免费久久洗澡 | 国产欧美精品一区二区三区-老狼| 亚洲av无码一区二区三区性色 | 亚洲av永久无码精品国产精品| 日本少妇被黑人猛cao| 亚洲色大成网站www| 久久精品人人爽人人爽| 久久午夜无码鲁丝片| 在线观看午夜亚洲一区| 国产成人综合久久亚洲精品| 亚洲av无码精品色午夜| 久久亚洲国产成人精品无码区| 8x8ⅹ在线永久免费入口| 天天躁日日躁狠狠很躁| 日本少妇春药特殊按摩3| 乱人伦人妻精品一区二区| 少妇被粗大的猛烈进出动视频| 夜先锋av资源网站| 欧美极品少妇性运交| 国产a国产片国产| 狠狠色噜噜狠狠狠狠色综合久|