ISO 14302:2022

Overview

ISO 14302:2022 - Space systems - Electromagnetic compatibility requirements defines a process to establish system- and equipment-level electromagnetic compatibility (EMC) performance requirements for space systems. The second edition (2022) updates the original 2002 publication and provides engineering guidance, rationale (Annex A), and a method to derive typical equipment-level EMI requirements from system-level EMC requirements. The document supports tailoring of requirements for specific missions and references civilian EMI test methods to reduce cost and leverage standard test practice.

Key topics and technical requirements

• System-level EMC programme: Establishes an EMC control programme and timeline (flow chart) covering planning, design, analysis, test and evaluation phases.
• Equipment/subsystem criticality categories: Identifies criticality levels used to apply safety margins and verification rigor.
• External electromagnetic environment & intrasystem EMC: Guidance to characterize environmental threats and control interactions within the spacecraft.
• EMI control, grounding and wiring design, electrical bonding: Engineering considerations to limit conducted and radiated interference.
• Antenna-to-antenna (RF) compatibility: Requirements to prevent inter-antenna interference on multi-transmitter/receiver platforms.
• Hazards and special phenomena: Includes multipaction, passive intermodulation (PIM), electrostatic discharge (ESD), lightning, spacecraft charging, and life-cycle considerations.
• Power bus and signal cable requirements: Coverage of source- and load-induced power-bus conducted interference (time and frequency domain), switching transients, ripple, and signal-cable conducted interference.
• Equipment immunity and emissions: Immunity to radiated fields, magnetic field-induced signals, ESD, and control of antenna-port immunity/out-of-band interference.
• Verification and documentation: Defines verification deliverables such as the Electromagnetic Effects Verification Plan (EMEVP) and Electromagnetic Effects Verification Report (EMEVR), plus equipment-level testing guidance (no prescriptive test limits included).

Practical applications - who uses ISO 14302:2022

• Spacecraft systems engineers and EMC engineers use it to set and flow down EMC requirements across subsystems and equipment.
• Design and test teams leverage the guidance for grounding, wiring, bonding, EMI control and selection of test methods.
• Program managers and procurement specialists use the standard to specify EMC requirements and acceptance/verification artifacts (EMEVP/EMEVR).
• Test laboratories and contractors apply the document to prepare test plans and to derive equipment-level tests from system-level needs.
• Standards harmonization: Useful when aligning project requirements with AIAA, ECSS, MIL‑STD and other aerospace EMC practices.

Related standards

ISO 14302:2022 aligns and references contemporary civilian and aerospace EMC work (AIAA, ECSS, MIL‑STD) and is intended to be tailored to mission-specific contractual needs. Annex A provides the rationale underpinning requirements and chosen test techniques.

Keywords: ISO 14302:2022, electromagnetic compatibility, EMC, space systems, EMI testing, multipaction, electrostatic discharge, antenna compatibility, power bus interference, grounding and bonding.