crimping, interconnecting cables, harnesses, and wiring - NASA

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NASA-STD-8739.4 with Change 66.10 Personnel Protection ..................................................................................................... 337. DESIGN PRACTICES ............................................................................................ 347.1 General .......................................................................................................................... 347.2 Requirements Not Covered ........................................................................................... 347.3 Design Considerations .................................................................................................. 348. INTERCONNECTING CABLE/HARNESS FIXTURING ................................. 378.1 General .......................................................................................................................... 378.2 Mockup and Wiring Board Design Parameter .............................................................. 378.3 Temporary Identification .............................................................................................. 378.4 Interconnecting Cable and Harness Protection ............................................................. 379. FORMING WIRES INTO CABLES AND HARNESSES ................................... 409.1 General .......................................................................................................................... 409.2 Lacing for Trunk, Branches, and Breakouts ................................................................. 409.3 Fabric Braid Sleeving (Prewoven)................................................................................ 439.4 Fabric Braid Directly Woven on Interconnecting Harness or Cable ............................ 449.5 Spiral Wrap Sleeving .................................................................................................... 469.6 Plastic Straps ................................................................................................................. 469.7 Metal Braid Shielding ................................................................................................... 479.8 Insulation Sleeving/Tubing ........................................................................................... 479.9 Installation of Heat-Shrinkable Sleeving ...................................................................... 489.10 Long Lengths of Shrinkable Sleeving........................................................................... 499.11 Shrinkable Part Requirements and Installation ............................................................. 5010. STRIPPING INSULATION FROM CONDUCTORS AND CABLE ............. 5210.1 Stripping Round Conductors......................................................................................... 5210.2 Stripping Jackets Over Shields ..................................................................................... 5310.3 Stripping Flat Conductor Cable .................................................................................... 5311. CABLE SHIELDING AND SHIELD TERMINATION .................................. 5411.1 General RFI/EMI Practices ........................................................................................... 5411.2 Shield Termination ........................................................................................................ 5411.3 Terminating Overall Shielding Using RFI/EMI Adapters ............................................ 5411.4 Individual Shield Termination Using Heat Shrinkable Solder Sleeves ........................ 5511.5 Individual Shield Termination Using Two-Piece Crimp Rings .................................... 5511.6 Group-Grounding of Individual Shield Terminations .................................................. 5611.7 Large Compression Ring Grounding ............................................................................ 5811.8 Floating Shield Terminations ........................................................................................ 59Page 10 of 114
NASA-STD-8739.4 with Change 611.9 Unshielded Wire Exposure and Total Length of Grounding Wires ............................. 6012. CRIMP CONNECTIONS .................................................................................... 6212.1 General .......................................................................................................................... 6212.2 Examination of Crimp Contact ..................................................................................... 6212.3 Process Controls............................................................................................................ 6213. CONNECTOR ASSEMBLY ............................................................................... 6613.1 General .......................................................................................................................... 6613.2 Assembly of Crimp-Type Connectors (Including Terminal Junctions) ....................... 6613.3 Assembly of Solder-Type Connectors .......................................................................... 6613.4 Assembly of Hermetic and Environmental Connectors................................................ 6713.5 Assembly (Torquing) of Adapters and Cable Clamps to Connectors ........................... 6713.6 Assembly of RF Connectors and Coaxial Contacts ...................................................... 6813.7 Process Controls for Two-Piece Crimp Rings and Stub-Type Splicing Devices ......... 6813.8 Inspection and Verification Testing .............................................................................. 6914. HARNESS IDENTIFICATION .......................................................................... 7214.1 General .......................................................................................................................... 7214.2 Permanent Identification ............................................................................................... 7214.3 Verification of Identification ........................................................................................ 7215. INTERCONNECTING HARNESS AND CABLE CLEANING ..................... 7315.1 General .......................................................................................................................... 7315.2 Cleaning the Harness Assembly ................................................................................... 7315.3 Cleaning Harness Connectors ....................................................................................... 7315.4 Cleaning Coaxial Connectors (Assembled).................................................................. 7316. INTERCONNECTING HARNESS AND CABLE HANDLING ANDPROTECTION ................................................................................................................ 7516.1 General .......................................................................................................................... 7516.2 In-Process Protection .................................................................................................... 7516.3 Completed Interconnecting Harness and Cable Storage Protection ............................. 7517. CONNECTOR MATING .................................................................................... 7617.1 General .......................................................................................................................... 7617.2 Connector Mating and Demating .................................................................................. 7617.3 Coaxial Connector Mating ............................................................................................ 7718. TESTING AND INSPECTION ........................................................................... 7818.1 General .......................................................................................................................... 78Page 11 of 114
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crimping, interconnecting cables, harnesses, and wiring - NASA

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