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A Firewall must separate the driver compartment and any portion of the Driver Harness from:
a. All components of the fuel supply, the engine oil, the liquid cooling systems, any lithium batteries
b. (EV only) All Tractive System components that are not subject to T.1.9.4
T.1.8.2 Construction
Any Firewall must:
a. Be a non permeable surface made from a rigid, Nonflammable Material
b. Seal completely against the passage of fluids (the Firewall itself and edges)
c. Be rigidly mounted
The Firewall must extend sufficiently far upwards and/or rearwards and/or sideways such that any point on the drivers body less than 100 mm above the bottom of the helmet of the tallest driver must not be in direct line of sight with any part mentioned in T.1.8.1 above
T.1.8.4 Details
a. Firewalls composed of multiple panels must be sealed at the joints
b. Grommets must be used to seal any pass through for wiring, cables, etc
c. Any seals or adhesives used with the Firewall must be rated for the application environment
T.1.8.5 (EV only) The Accumulator Container may be used as part of the Firewall if it meets these requirements