漆包线进厂检验标准.docx

漆包线进厂检验标准1. 主题内容和适用范围：本标准规定了本厂各种变压器所用的各种漆包线进厂检验的引用标准、技术条件、检验方法、验收规则。2. 引用标准：GB6109.1-6109.43. 技术条件3.1 最大外径、最小外径、导体直径、符合表1规定。3.2 铜导体电阻应符合GB6109.1表2规定。3.3 击穿电压3.3.1 标准直径0.10以上到2.50mm漆包线用扭绞法试验其击穿电压应符合表3规定。3.4 漆膜连续性（针孔试验）按规定试验漆包线针孔数应5个。3.5 耐热冲击导体标称直径1.6mm及以下漆层应不开裂。4. 检验方法：4.1 外径和导体的检验方法：漆包线外径用分辨率0.01mm千分尺测量，测直径时，试样长度1000mm,取均匀分布的三处进行测量，导体直径测量完成后，用不损伤导体的办法去漆后测量，方法相同。4.2 铜导体电阻的检验方法：在试样长度1050mm,两头去漆30mm.然后用为微欧计测量，两个测量点距离10003mm,并重复3次，取3次读数的平均值为测量结果。若环境温度不等于+20时，应按下式进行换算： R20=254.5234.5+tRt其中R20-温度t20时的直流铜阻 Rt-温度t时的直流铜阻 t-测量时环境温度4.3 击穿电压的试验方法：每种试验均取长度400mm的试样5根，1根试样对折并扭绞，扭绞部分的长度为125mm左右，扭绞数见表4，断开对折线头并分开到足够大，但应避免过分弯曲或损坏绝缘，头去漆，施加试验电压。设定电流1mA，试验时间为1分钟。施加电压应符合表3规定，如无异常判为合格。表4标准直径125mm中扭绞数以上到及包括0.100.25330.250.35230.350.50160.500.75120.751.0584.4 漆膜连续性（针孔试验）的试验方法：对于导体直径0.060mm及以下的漆包线取长约1.5m的试样，对于导体直径0.070mm及以上的漆包线取长约6m的试样。将试样放入规定温度（未规定温度采用1253）的烘箱中加热10分钟。加热处理后，试样不能受到弯曲也不能受到拉伸，将试样放入0.2%食盐水中，食盐水中滴入适量3%酚酞的乙醇溶液。对于导体直径0.060mm及以下的漆包线浸液长度应为1m, 对于导体直径0.070mm及以上的漆包线浸液长度应为5m，然后将溶液作为正极，试样的导体作为负极施加直流12V电压1分钟，检查产生的针孔数。4.5 耐热冲击：在同一轴上取长约35cm的3根样线，放入漆包线标称耐温等级+20度（/5度）的试验烘箱加热1小时，然后取出冷却至室温，用15倍的放大镜检查漆膜是否裂露出导体。5. 验收规则：5.1 导线直径：每批任抽五轴，每轴任取1段，判定方法：Ac=0，Rc=1 发现不合格加倍抽检，要求全部合格。5.2 导线铜阻：每批任抽五轴，每轴任取1段，判定方法：Ac=0，Rc=15.3 耐压试验：每批任抽五轴，每轴任取1段，判定方法：Ac=0，Rc=15.4 耐热冲击：逐件检验，判定方法：凡是不合格的线轴退货。针孔试验：逐件检验，判定方法：凡是不合格的线轴退货。 5.5 每轴线上要标识：制造单位、商标、生产日期、执行标准、净重、标称直径、漆膜级别。表1 mm导体标称直径d最大外径D导体标称直径d最大外径D1级2级3级1级2级3级0.0180.0200.0220.0250.0280.0320.0360.0400.0450.0500.0560.0630.0710.0800.0900.1000.1120.1250.1400.1600.1800.2000.2240.2500.2800.0220.0240.0270.0310.0340.0390.0440.0490.0550.0600.0670.0760.0840.0940.1050.1170.1300.1440.1600.1820.2040.2260.2520.2810.3120.0240.0270.0300.0340.0380.0430.0490.0540.0610.0660.0740.0830.0910.1010.1130.1250.1390.1540.1710.1940.2170.2390.2660.2970.329-0.0970.1080.1200.1320.1470.1630.1810.2050.2290.2520.2800.3120.3450.3150.3550.4000.4500.5000.5600.6300.7100.8000.9001.0001.1201.2501.4001.6001.8002.0002.2402.5002.8003.1503.5504.0004.5005.0000.3490.3920.4390.4910.5440.6060.6790.7620.8550.9591.0621.1841.3161.4681.6701.8722.0742.3162.5782.8803.2333.6354.0884.5915.0930.3670.4110.4590.5130.5660.6300.7040.7890.8840.9891.0941.2171.3491.5021.7061.9092.1122.3552.6182.9223.2763.6794.1334.6375.1410.3840.4280.4780.5330.5870.6530.7280.8140.9111.0181.1241.2481.3811.5351.7401.9442.1482.3922.6562.9613.3163.7214.1764.6815.186注：介于相邻标称直径间的中间规格，最大外径见GB6109.1-90标准附录D。表2导体标称直径dmm电阻，/m最小标称最大0.0180.0200.0220.0250.0280.0320.0360.0400.0450.0500.0560.0630.0710.0800.0900.1000.1120.1250.1400.1600.1800.2000.2240.2500.2800.3150.3550.4000.4500.5000.5600.6300.7100.8000.9001.0001.1201.2501.4001.6001.800-3.9413.1332.4952.0341.6321.3171.0550.81220.64440.52370.41880.33450.26760.21210.16740.13160.10420.084620.067360.053350.041980.033050.026120.02116-67.1854.4144.9734.8227.7621.2516.7913.6010.758.7066.9405.4844.3183.4012.6872.1761.7351.3931.1100.85020.67180.54410.43380.34820.27760.21930.17270.13600.10750.087060.069400.054840.043180.034010.026870.021760.017350.013930.011100.0085020.006718-4.7473.7032.9002.3331.8481.4751.1700.89060.70070.56570.44950.36280.28820.22700.17820.14070.11090.089590.071530.056380.044420.035000.027650.02240-续表2导体标称直径dmm电阻，/m最小标称最大2.0002.2402.5002.8003.1503.5504.0004.5005.000-0.0054110.0043380.0034820.0027760.0021930.0017270.0013600.0010750.0008706-表3导体标称直径dmm最小击穿电压（有效值）V1级2级3级0.1120.1250.1400.1600.1800.2000.2240.2500.2800.3150.3550.4000.4500.5000.5600.6300.7100.8000.9001.0002.50001300150016001700170018001900210022002200230023002300240025002600260026002700270027002800300032