This part describes the potential electrical environmental loads and specifies tests and requirements recommended for the specific mounting location on/in the vehicle.
This part is applicable to electrical and electronic systems/components for vehicles.
Note: Electrical loads are independent from the mounting location, but may vary due to the
electrical resistance in the vehicle wiring harness and connection system.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 28046.1 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 1: General (GB/T 28046.1-2011, ISO 1675-1:2006, MOD)
GB/T 28046.4 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 4: Climatic Loads (GB/T 28046.4-2011, ISO 1675-4:2006, MOD)
ISO 8820 Road Vehicles - Fuse-Links
UL 94 Test for Flammability of Plastic Materials for Parts in Devices and Appliances
3 Terms and Definitions
For the purpose of this document, the terms and definitions given in GB/T 28046.1 apply.
4 Tests and Requirements
4.1 General
If not otherwise specified, the following tolerances shall apply:
——frequency and time: ±5%;
——voltages: ±0.2 V;
——resistance: ±10%.
4.2 D.C. Supply Voltage
4.2.1 Purpose
The purpose of this test is to verify equipment functionality at minimum and maximum supply voltage.
4.2.2 Test
Set the supply voltage as specified in Table 1 or Table 2 to all relevant inputs of the device under test (DUT), and measure all voltages at the relevant terminals of the DUT. The voltages which are listed in Table 1 or Table 2 are relevant within the operating temperature range as specified in GB/T 28046.4, without time limits.
Table 1 Supply Voltage for UN= 12 V System Devices
