电气器具安装后,经常由于导线的绝缘程度达不到规定要求而无法交工。经检查表明,除少数因接线错误造成以外,大多由于接线盒中的导线接头、灯位预制板孔中的导线接头潮湿,接头互相接触,或接触了潮湿的接线盒壁、预制板孔壁所造成。由于发生故障的部位及原因不清,经常 After the installation of electrical appliances, it is often impossible to deliver because the insulation of the conductors does not meet the specified requirements. Inspection shows that, except for a few caused by wiring errors, most of the wire connectors in the terminal box and the wire connectors in the holes of the lamp position prefabricated board are wet, and the connectors are in contact with each other, or they come into contact with the damp wall of the terminal box and the wall of the prefabricated board. Caused. Due to the location of the failure and the reasons are not clear, often