ECE-R10

UN Regulation No. 10 (UNECE R10), often referred to as ECE-R10, establishes electromagnetic compatibility (EMC) requirements for road vehicles and their electrical or electronic sub-assemblies. It forms part of the UN vehicle type-approval framework and is applied by contracting parties that recognize approvals under the 1958 Agreement.

The regulation addresses both electromagnetic emissions and immunity. Its purpose is to limit disturbances produced by vehicles and components while ensuring that safety-relevant vehicle functions remain sufficiently immune to electromagnetic influences.

Scope

UNECE R10 covers vehicles in categories L, M, N, O, T, R and S as well as electrical or electronic sub-assemblies (ESAs) intended to form part of a vehicle. An ESA may be a single device or a set of devices, including associated connections and wiring, that performs one or more specialized functions.

The regulation distinguishes between approval of a complete vehicle with regard to EMC and approval of an ESA as a component or separate technical unit. The applicable route depends on the product, its installation and its effect on vehicle functions.

Technical Assessment

The assessment covers the following core areas:

• Emissions: Broadband and narrowband electromagnetic emissions are evaluated against the applicable limits.

• Immunity: The vehicle or ESA is exposed to defined electromagnetic disturbances and assessed against the applicable functional criteria.

• Installation: Component approval conditions and the intended installation in the vehicle must be considered when determining whether additional vehicle-level assessment is required.

Vehicle-level immunity testing is associated with the ISO 11451 series, while vehicle emissions are assessed using methods derived from CISPR 12 and CISPR 25. At ESA level, immunity testing uses the ISO 11452 series, and emissions testing uses CISPR 25, adopted in Europe as EN 55025 / CISPR 25. The exact tests and limits depend on the approval scope and equipment configuration.

Type Approval

The EMC assessment is performed by a technical service designated by the relevant approval authority. Test reports and the required information document form part of the type-approval documentation. Once conformity has been established, the approval authority grants the approval and assigns the corresponding approval mark.

Approval of an ESA does not by itself demonstrate that every possible vehicle installation is compliant. Installation conditions, interfaces, cable routing, antennas and interaction with other vehicle systems may affect the final assessment.

Product Lifecycle

• Development: Pre-compliance measurements help identify EMC risks before the formal assessment.

• Type approval: The defined production configuration is tested and documented before approval.

• Changes: Hardware, software, antenna or installation changes must be evaluated to determine whether the existing approval remains valid or further testing is necessary.

Relationship to EU Requirements

UNECE R10 is the primary EMC type-approval framework for vehicles and automotive ESAs within its scope. Depending on the product and how it is placed on the market, separate requirements under the EMC Directive 2014/30/EU or the Radio Equipment Directive 2014/53/EU may also need to be assessed. Compliance with one framework should not automatically be treated as proof of compliance with another.

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