ISO 16750-2:2023
Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 2: Electrical loads
This document applies to electric and electronic systems/components for road vehicles. This document describes the potential environmental stresses and specifies tests and requirements for the specific mounting location on/in the road vehicle.
This document describes electrical loads.
This document is not intended to apply to environmental requirements or testing for systems and components of motorcycles and mopeds. Electromagnetic compatibility (EMC) is not covered by this document.
Electrical loads are independent from the mounting location, but can vary due to the electrical impedance (including both the resistance and the inductance) in the vehicle wiring harness and connection system.
Systems and their components released for production, or systems and their components already under development prior to the publication date of this document, can be exempted from fulfilling the changes in this edition compared to the previous one.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test and requirements
4.1 General
4.2 Direct current (DC) supply voltage
4.2.1 Purpose
4.2.2 Test method
4.2.3 Requirements
4.3 Overvoltage
4.3.1 Long term overvoltage
4.3.2 Transient overvoltage
4.4 Superimposed alternating voltage
4.4.1 Purpose
4.4.2 Test method
4.4.3 Requirements
4.5 Slow decrease and increase of supply voltage
4.5.1 Purpose
4.5.2 Test method
4.5.3 Requirements
4.6 Discontinuities in supply voltage
4.6.1 Drops or interrupts in supply voltage
4.6.2 Reset behaviour at voltage drop
4.6.3 Starting profile
4.6.4 Load dump
4.7 Reversed voltage
4.7.1 Purpose
4.7.2 Test method
4.7.3 Requirements
4.8 Ground reference and supply offset
4.8.1 Purpose
4.8.2 Test method
4.8.3 Requirements
4.9 Open circuit tests
4.9.1 Single line interruption
4.9.2 Multiple line interruption
4.10 Short circuit/overload protection
4.10.1 Purpose
4.10.2 Short circuit in signal lines and load circuits
4.10.3 Overloading of load circuits
4.11 Withstand voltage
4.11.1 Purpose
4.11.2 Test method
4.11.3 Requirements
4.12 Insulation resistance
4.12.1 Purpose
4.12.2 Test method
4.12.3 Requirements
4.13 Electromagnetic compatibility
5 Documentation
Annex A (normative) Test load dump pulse generator verification procedure
Annex B (informative) Origin of load dump pulse in road vehicles electrical systems
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test and requirements
4.1 General
4.2 Direct current (DC) supply voltage
4.2.1 Purpose
4.2.2 Test method
4.2.3 Requirements
4.3 Overvoltage
4.3.1 Long term overvoltage
4.3.2 Transient overvoltage
4.4 Superimposed alternating voltage
4.4.1 Purpose
4.4.2 Test method
4.4.3 Requirements
4.5 Slow decrease and increase of supply voltage
4.5.1 Purpose
4.5.2 Test method
4.5.3 Requirements
4.6 Discontinuities in supply voltage
4.6.1 Drops or interrupts in supply voltage
4.6.2 Reset behaviour at voltage drop
4.6.3 Starting profile
4.6.4 Load dump
4.7 Reversed voltage
4.7.1 Purpose
4.7.2 Test method
4.7.3 Requirements
4.8 Ground reference and supply offset
4.8.1 Purpose
4.8.2 Test method
4.8.3 Requirements
4.9 Open circuit tests
4.9.1 Single line interruption
4.9.2 Multiple line interruption
4.10 Short circuit/overload protection
4.10.1 Purpose
4.10.2 Short circuit in signal lines and load circuits
4.10.3 Overloading of load circuits
4.11 Withstand voltage
4.11.1 Purpose
4.11.2 Test method
4.11.3 Requirements
4.12 Insulation resistance
4.12.1 Purpose
4.12.2 Test method
4.12.3 Requirements
4.13 Electromagnetic compatibility
5 Documentation
Annex A (normative) Test load dump pulse generator verification procedure
Annex B (informative) Origin of load dump pulse in road vehicles electrical systems
Bibliography