ISO 26871:2020

INTERNATIONAL ISO
STANDARD 26871
Second edition
2020-10
Space systems — Explosive systems
and devices
Systèmes spaciaux — Dispositifs et equipements explosifs
Reference number
©
ISO 2020
© ISO 2020
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, abbreviated terms and symbols . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 8
3.3 Symbols .10
4 Requirements .10
4.1 General .10
4.1.1 Background information .10
4.1.2 Overview .10
4.1.3 Applicability .11
4.1.4 Properties .11
4.2 Design .11
4.2.1 General.11
4.2.2 Debris requirements.12
4.2.3 Reliability and confidence levels .13
4.2.4 Performance .13
4.2.5 Wanted and unwanted response .13
4.2.6 Dimensioning .13
4.3 Mission .16
4.4 Functionality .16
4.5 Safety .17
4.5.1 General.17
4.5.2 Prevention of unintentional function .17
4.6 Survival and operational conditions .18
4.7 Interface requirements .19
4.7.1 General.19
4.7.2 Functional .19
4.7.3 Internal .19
4.7.4 External .20
4.8 Mechanical, electrical, and thermal requirements .20
4.8.1 Mechanical .20
4.8.2 Electrical .21
4.8.3 Thermal.24
4.8.4 Status check.25
4.9 Materials .26
4.10 Production lot .27
4.11 Non-explosive components and equipment .27
4.11.1 Connectors .27
4.11.2 Wiring .27
4.11.3 Shielding.28
4.11.4 Faraday cap .28
4.11.5 Safety cap.28
4.11.6 Power .28
4.11.7 Arm plug receptacle .29
4.11.8 Safe plug .29
4.11.9 Arm plug . .30
4.11.10 Test plug .30
4.11.11 Safe and arm device.30
4.11.12 Initiator harness connector .32
4.11.13 Initiator test substitute.32
4.12 Explosive components .32
4.12.1 General.32
4.12.2 Initiators, cartridges, detonators and packaged charges .33
4.12.3 Through-Bulkhead initiators .38
4.12.4 Integral initiator connectors .38
4.12.5 Transfer devices .39
4.12.6 Safe and arm devices containing explosive .40
4.12.7 Gas generators .41
4.12.8 Shaped charges.41
4.12.9 Expanding tube separation system .42
4.12.10 Distribution boxes .43
4.12.11 Explosive delays .44
4.13 Explosively actuated devices .45
4.13.1 General.45
4.13.2 Separation nuts and separation bolts .46
4.13.3 Pullers .47
4.13.4 Pushers (Thrusters) .48
4.13.5 Cutters .48
4.13.6 Pyro-valves .49
4.14 Items external to the flight equipment .50
4.14.1 GSE .
...