Overview
IEC TR 62131-8:2022 is a Technical Report from the IEC that reviews dynamic data on vibration and shock affecting electrotechnical equipment during transportation by ship (including sea and riverine use). Edition 1.0 (2022-07) collects and compares measured vibration/shock datasets (for example NAV and RIB measurements), assesses data quality, and relates transportation environments to installed-equipment maritime environments. The report is informative (non‑normative) and provides recommendations to inform test selections and environmental classifications.
Key topics covered
- Scope and data sources: review of available measurement campaigns and supplementary datasets relevant to shipborne transportation.
- NAV and RIB measurements: presentation and analysis of vibration data from naval vessels and rigid-inflatable boats, including measurement layouts and statistical summaries.
- Data quality and comparisons: intra-source and inter-source comparisons to identify consistent patterns and variability across different vessel types and operating conditions.
- Environmental description: characterization of conditions causing vibration/shock (sea states, speed, manoeuvres) and environmental characteristics relevant to transportation.
- Test types and recommendations: mapping of measured environments to appropriate laboratory test approaches (random and sinusoidal vibration, shock) and guidance on selecting severities.
- Standards comparison: comparison with the IEC 60721 series and with other common references cited in the report (e.g., MIL‑STD, DEF STAN, IEC 60945), to help harmonize test profiles and classification levels.
Practical applications and who uses it
This Technical Report is useful for:
- Manufacturers of electrotechnical equipment who need to define robust design margins and specify relevant vibration/shock test profiles for products shipped by sea.
- Test laboratories and certification bodies selecting or justifying environmental test severities and procedures.
- Shipbuilders, system integrators and installers assessing risks during onboard transport and temporary stowage.
- Procurement, logistics and reliability engineers specifying transport conditions, packaging, and handling requirements for maritime shipments.
- Standards developers and researchers who need consolidated measurement data and comparisons to existing classification schemes.
Practical uses include selecting laboratory test profiles that reflect real transportation exposures, interpreting sea‑state-related vibration risks, and aligning product classification with IEC 60721 and other maritime test practices.
Related standards and references
- IEC 62131 series (Environmental conditions – Vibration and shock)
- IEC 60721 series (environmental classification)
- IEC 60945 (shipborne equipment guidance)
- Other industry references reviewed in the TR: MIL‑STD, DEF STAN, ISO guidance and classification documents
Keywords: IEC TR 62131-8:2022, vibration and shock, transportation by ship, electrotechnical equipment, marine transport, sea state, RIB, NAV, IEC 60721, vibration testing.