datalist:8数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:5数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543<!DOCTYPE html>
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<p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"><span>电工操作证报名</span> <span>电工操作考证</span> <span>电工操作证报名</span> <span>电工培训考证哪里好</span></span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff">&nbsp;</span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"><span>我们英杰职业教育主要办理电工培训考证，焊工培训考证，高空考证，叉车培训考证，等特种职业培训考证年审，有考证班，学习班，</span></span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff">VIP班</span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"><span>电工</span> &nbsp;&nbsp;&nbsp;&nbsp;<span>焊工</span> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>叉车</span> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>高空</span> &nbsp;&nbsp;&nbsp;&nbsp;<span>高压</span></span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"><span>安监局考试类别：</span> <span>电焊工操作证</span> <span>低压电工操作证</span> <span>高压电工操作证</span> <span>高空作业（登高安装、拆除、维护）操作证</span> </span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"><span>建筑业考试类别：</span> <span>塔吊司机</span> <span>建筑电工</span> <span>建筑焊工</span> <span>信号司索工</span> <span>物料提升机司机</span> <span>施工升降机司机</span> <span>塔吊及吊篮安装拆除工</span> <span>装载机挖掘机等建筑车辆驾驶员证</span></span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><p><span style="font-family:宋体;font-size:10.5000pt">电工在实际作业中有很多小技巧，比如：</span><span style="font-family:宋体;font-size:10.5000pt"></span></p><p><span style="font-family:宋体;font-size:10.5000pt"><span>电工在检修电</span>&nbsp;<span>器设备和电子线路时要使用万用表，这万用表如何使用呢？</span></span><span style="font-family:宋体;font-size:10.5000pt"></span></p><p><span style="font-family:宋体;font-size:10.5000pt"><span>万用表的基本功能是测量电压、电流、电阻，有些带测三管、二管、电容、电感、频率、温度等附加功能。</span> </span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt"><span>要测电路好坏，对被测电路原理有所了解如各点的正常电压电流值，知到电路中各元件的基本知识，这样才能用表去测量判断它的好坏。</span> </span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt">先学好电工原理、电子电路基本知识，再买一块万用表边学习边实践，那么表怎么检查电路好坏呢？检查方法：</span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt"><span>用万用表电阻档</span>200M<span>档测量绝缘线路电阻，先确定是哪根线漏电，或者哪两根线短路。</span></span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt">方法如下：</span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt">1<span>、测量火线和零线的绝缘电阻，测量火线对地线的绝缘电阻，测量零线对地线绝缘电阻。如果短路绝缘电阻基本为零。</span></span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt">2<span>、知道哪根线漏电了，在用分段查找法，逐步缩小故障范围。</span></span><span style="font-family:宋体;font-size:10.5000pt"></span><span style="font-family:宋体;font-size:10.5000pt">3<span>、或者用排除法，把线路分开后一段一段的通电试</span></span><span style="font-family:宋体;color:#333333;font-size:12pt;background:#ffffff"></span></p><br /><a href="http://1209lxl.b2b168.com/">http://1209lxl.b2b168.com</a>

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