Electric vehicles are subject to international standards ISO 26262 (corresponding to GB/T 34590) and IEC 61508 (corresponding to GB/T 20438), so wiring harness design must meet strict functional safety levels.

• Systematic perspective: Wiring harnesses are no longer treated as single components, but are evaluated as a critical part of the overall safety system.

• Whole-process optimization: Functional safety thinking must run through the three core stages of design, material selection, and verification.

• Failure response capability: The core design objective is to ensure that the system remains in a "controllable" and "safe" state even under extreme environments or in the event of failures.

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