crimping, interconnecting cables, harnesses, and wiring - NASA

More documents

Recommendations

Info

6.7 Inspection Optics Page 32 of 114 NASA-STD-8739.4 with Change 6 Visual inspection shall be performed using magnification aids conforming to the following: 6.7.1 Inspection magnification aids that permit simultaneous viewing with both eyes are preferred, but single eye viewing devices are acceptable (Requirement). 6.7.2 Magnification aids shall be capable of rendering true colors, proportional dimensions, and adequate resolution at the chosen magnification to perform the specified inspection (Requirement). 6.7.3 The light source shall provide shadowless illumination of the area being viewed (Requirement). 6.8 Materials Selection All materials used in vacuum or low-pressure compartments shall not release greater than 1.0 percent total mass loss (TML) and 0.1 percent collected volatile condensable material (CVCM) when tested in accordance with ASTM-E-595 (Requirement). All materials used in habitable areas of spacecraft, stowed equipment, and experiments shall be evaluated for flammability, odor, and offgassing characteristics in accordance with NASA-STD-6001 (Requirement). Materials used shall be subjected to NASA approval (Requirement). All material shall be selected to conform to the project contamination control requirements plan (Requirement). 6.9 Solvents and Cleaners 6.9.1 Solvent Requirements. Solvents shall be nonconductive and noncorrosive and shall not dissolve or degrade the quality of parts or materials (Requirement). Solvents shall be properly labeled and shall be maintained in a clean and uncontaminated condition (Requirement). Solvents showing evidence of contamination or decomposition shall not be used (Requirement). Solvents and cleaners shall not leave a residue or contamination in parts or materials (Requirement). Refer to the Material Safety Data Sheets (MSDS) for proper handling of solvents. 6.9.2 Acceptable Solvents. The following solvents are acceptable when used for cleaning connectors, hardware, and other materials and parts in cables and harnesses. Other solvents require approval of the procuring activity prior to use. a. Denatured Ethyl alcohol, 27 CFR 21.35 Code of Federal Regulations, Title 27, Alcohol, Tobacco and Firearms, Part 21, Formulas for Denatured Alcohol and Rum, Subpart D, Specially Denatured Spirits Formulas and Authorized Uses, Formula No. 3-A. b. Isopropyl alcohol, TT-I-735. 6.9.3 Part Marking Permanency. Solvent and cleaning systems have the potential of removing marking information from parts. Appropriate marking permanency testing shall be performed as part of the evaluation procedure for any solvent or cleaning system (Requirement).
Page 33 of 114 NASA-STD-8739.4 with Change 6 WARNING: SOLVENTS USED IN THE HARNESS AND CABLE MANUFACTURING PROCESS CAN BE HAZARDOUS AND VOLATILE. THESE MATERIALS SHALL BE USED IN ACCORDANCE WITH THE RECOMMENDATIONS AND GUIDELINES OF THE INDUSTRIAL VENTILATION MANUAL OF RECOMMENDED PRACTICES AND THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA), 29 CFR. 6.10 Personnel Protection Personal protective equipment shall be provided as appropriate for the work being performed. Protective equipment shall comply with the requirements of OSHA, 29 CFR Part 1910 (Requirement).
Page 1 and 2: NASA TECHNICAL STANDARD National Ae
Page 3 and 4: Status Document Revision DOCUMENT H
Page 5 and 6: This page intentionally left blank.
Page 7 and 8: Page 7 of 114 NASA-STD-8739.4 with
Page 9 and 10: TABLE OF CONTENTS Page 9 of 114 NAS
Page 15 and 16: LIST OF TABLES Page 15 of 114 NASA-
Page 17 and 18: 2. APPLICABLE DOCUMENTS 2.1 Applica
Page 19 and 20: PVDF Polyvinylidene Fluoride RF Rad
Page 23 and 24: 4. GENERAL 4.1 General Page 23 of 1
Page 25 and 26: 5. TRAINING AND CERTIFICATION PROGR
Page 29 and 30: 6. FACILITIES, EQUIPMENT, MATERIALS
Page 31: Page 31 of 114 NASA-STD-8739.4 with
Page 37 and 38: 8. INTERCONNECTING CABLE/HARNESS FI
Page 41 and 42: Figure 9-1. Starting Stitch Figure
Page 45 and 46: Figure 9-8. Starting Lock Figure 9-
Page 47 and 48: 9.7 Metal Braid Shielding Figure 9-
Page 57 and 58: Figure 11-4. Group Grounding of Sta
Page 59 and 60: 11.8 Floating Shield Terminations F
Page 63 and 64: c. Records of examination shall be
Page 83 and 84:
Page 83 of 114 NASA-STD-8739.4 with
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
. Shield Terminations: (1) Shield t
Page 97 and 98:
(4) Mating surfaces and coupling me
Page 99 and 100:
(10) Tarnished, corroded, or contam
Page 101 and 102:
Page 101 of 114 NASA-STD-8739.4 wit
Page 103 and 104:
WIRE PREPARATION: MECHANICAL STRIPP
Page 105 and 106:
Page 107 and 108:
FIGURE A-25 FIGURE A-26 CRIMPS: INS
Page 109 and 110:
FIGURE A-29A CRIMPS: UNACCEPTABLE P
Page 111 and 112:
Page 113 and 114:
show all

crimping, interconnecting cables, harnesses, and wiring - NASA

Create successful ePaper yourself

Delete template?

Save as template?