ISO 13063-3:2022

Overview

ISO 13063-3:2022 - Electrically propelled mopeds and motorcycles - Safety specifications - Part 3: Electrical safety - specifies electrical safety requirements to protect against electric shock and thermal incidents for electric propulsion systems and conductive auxiliary circuits on mopeds and motorcycles. It applies to on‑board electrical circuits with a maximum working voltage up to 1 000 V AC or 1 500 V DC. The standard focuses on normal‑use conditions and complements other parts of the ISO 13063 series; it does not provide comprehensive guidance for manufacturing, maintenance or repair personnel.

Key topics and requirements

ISO 13063-3:2022 addresses electrical safety through structured technical topics:

• Voltage classes and marking: classification of circuits and marking requirements for components and wiring.
• General requirements: environmental and operational conditions, and minimum construction/identification rules.
• Protection against electric shock:
  • Basic protection and fault protection strategies (including equipotential bonding).
  • Isolation resistance requirements and measurements.
  • Provisions for capacitive coupling / capacitive discharge and options for alternative electrical or mechanical protective measures.
  • Requirements for protective barriers, enclosures and connectors.
  • Insulation coordination and design measures for chassis‑connected circuits.
• Protection against thermal incidents: overload and short‑circuit protection of power circuits.
• Vehicle power supply circuit requirements and necessary information for the owner’s guide/manual.
• Test procedures: continuity tests, isolation resistance measurement, isolation resistance monitoring tests, touch current measurement, withstand voltage tests and wiring test methods.

Applications and who uses this standard

ISO 13063-3:2022 is intended for:

• OEMs and component suppliers designing electric drives, power electronics, high‑voltage wiring harnesses, connectors, enclosures and charging interfaces for mopeds and motorcycles.
• Electrical safety engineers and system integrators assessing protection against shock and thermal risk.
• Test laboratories and conformity assessment bodies implementing the standard’s test procedures.
• Regulators and certification bodies referencing harmonized safety requirements.
• Technical authors preparing owner manuals and safety documentation.

Practical benefits include safer on‑board high‑voltage systems, clearer design and test criteria, and harmonized rules to support market access and compliance.

Related standards

• ISO 13063-1 (On‑board RESS) and ISO 13063-2 (Vehicle operational safety) - parts of the same series.
• ISO 18246 - conductive connection to external power supply (charging).
• ISO 6469-3 and other referenced documents (e.g., ISO 20653, IEC 60990) provide allied guidance on electrical protection, IP ratings and touch current measurement.