Sr2 Ece R66 Bus Skin (2027)

: This is a UN-standardized safety requirement for the strength of a bus's superstructure.

: It ensures that if a bus rolls over, the body is strong enough to maintain a "residual space" (survival zone) for passengers. sr2 ece r66 bus skin

🔹 – Not to be confused with UN ECE regulations for vehicles. In aircraft wiring/electrical bonding, ECE may stand for “Equipment Chassis Earth” or “Electrical Common Earth” in certain manufacturer wiring diagrams (especially older European designs). : This is a UN-standardized safety requirement for