国产精品日本一区二区在线播放,国产免费av片无码永久免费 ,精品午夜福利在线观看,欧美亚洲色综久久精品国产

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

老头天天吃我奶躁我的动图| 国产特级毛片aaaaaa高清| 国内精品久久久久久99| 18禁黄无遮挡网站| 人妻 丝袜美腿 中文字幕| 少妇性l交大片7724com| 国产欧美亚洲精品a| 天天弄天天模| 精品国产va久久久久久久冰| 成人免费看www网址入口| 99久久精品无码一区二区毛片| 一区二区三区内射美女毛片| 四虎影视永久在线观看| 久久成人国产精品| 7777色鬼xxxx欧美色妇| 日韩少妇内射免费播放| 亚洲男人的天堂在线播放| 少妇人妻偷人精品视蜜桃| 亚洲丰满熟女一区二区v| 亚洲综合色丁香婷婷六月图片| 国产丝袜美女| 人妻 色综合网站| 亚洲av无码精品无码麻豆| 亚洲男人第一av网站| 国产精品国产三级国产av剧情| 久久久久久久女国产乱让韩| 亚洲av无码一区二区乱孑伦as| 亚洲国产精品一区二区久久| 美女黄18以下禁止观看| 伊人久久大香线蕉av一区| 五十路丰满中年熟女中出| 97一期涩涩97片久久久久久久 | 日韩人妻精品一区二区三区视频| 99久久伊人精品综合观看| 日本丰满老妇bbw| 极品老师腿张开粉嫩小泬| 午夜不卡久久精品无码免费| 影音先锋中文字幕无码资源站| 色狠狠av一区二区三区| 无码欧精品亚洲日韩一区| 性欧美大战久久久久久久|