毫欧表测量工卡.doc

电子电气测量技能培训 序号 工作项目 工作者/日期 1 工具航材清点 工具：毫欧表 航材：搭接电阻测试盒； 2 毫欧表的使用 步骤1及要求 参看后附的手册SWPM20-20-00节选，先选择测量工作所需的各种工具，并记录工具名称和型号 ； 步骤2及要求 测量搭接电阻测试箱中各器件的搭接电阻，并记录数值（每人至少测量3个）； 步骤3及要求。 测量空速管与飞机结构的搭接电阻，并记录数值； 步骤4及要求 测量管路与卡子之间的搭接电阻，并记录数值； 步骤5及要求 测量放电刷与飞机蒙皮之间的搭接电阻，并记录数值； 3 结束工作： 整理工具、清洁工作场地。 一．MAXIMUM PERMITTED RESISTANCE OF ELECTRICAL BONDS NOTE: Unless it is specified differently, the resistance values given in the tables in this Paragraph refer to the overall resistance as it is measured across the bond from the object to the basic structure. NOTE: If the resistance measurement is more than the specified maximum resistance, then you must: ? Disassemble the components ? Reclean the mating surfaces ? Reassemble the components ? Retest the bond resistance. A. Resistance of Faying Surface Bonds Table 34 specifies the maximum resistance between the different surfaces of a faying surface bond for a new installation or a repair where the faying surfaces are prepared for a bond again. If it is specified to measure the resistance across more than one bond joint, the total bond resistance must not be more than the sum of the bond resistance values. For the bond test of faying surfaces, refer to Paragraph 22.D.. Table 35 gives the maximum resistance values for a faying surface bond when the resistance values are reverified. For the bond test of faying surfaces, refer to Paragraph 22.D.. Table 35 REVERIFICATION RESISTANCE VALUES OF FAYING SURFACE BONDS B. Resistance of Composite Panel Bonds Table 36 specifies the maximum resistance of the bond of a fastener and a composite structure with conductive fin