穿线要求：
Thread requirements:
盒、箱内清洁无杂物，护口、护线套管齐全导线排列整齐，并留有适当的余量。
The boxes and boxes are clean and free of debris. The guards and bushings are arranged neatly with proper allowances.
导线颜色、规格选择正确，导线切削不得伤线芯，预留长度适宜。
Correct selection of conductor color and specifications, wire core should not be damaged in wire cutting, and appropriate length should be reserved.
箱体内线芯余量合适，过短都会造成其松动，线芯剪得太长就会造成线芯外露，预留长度取1.2mm为宜。
Appropriate core allowance in the box, too short will cause its loosening, core shear too long will cause core exposure, reserved length of 1.2 mm is appropriate.
导线连接牢固，导线的缠绕圈数不足6圈，连接的接头均应拆除重新连接，包扎严密，绝缘良好。
Wire connection is firm, the number of winding coils of wire is less than 6 cycles. Connections should be removed and reconnected, tightly bandaged and well insulated.