Article C5.21.2
Protection of Cables and Electrical Equipment
Technical Regulations
Article C5.21.2
Protection of Cables and Electrical Equipment
Chapter: C5
In Simple Terms
F1 cars use high-voltage electrical systems, and this rule ensures all exposed cables and equipment are properly protected so drivers and personnel don't get electric shocks. Teams must use one of three safety methods: basic insulation with bonding, double insulation, or reinforced insulation.
- All high-voltage electrical parts outside the main enclosure must be protected against electrical shock
- Teams can use one of three approved protection methods: Basic Insulation with equipotential bonding, Double Insulation, or Reinforced Insulation
- This applies to all accessible electrical equipment that operates at high voltage
- Protection is critical for safety of drivers, mechanics, and all personnel around the car
Official FIA Text
The following design practices must be adhered to for all electrical parts external to the ES Main Enclosure or accessible and which operate at High Voltage: a. Protection against electrical shock via Basic Insulation combined with equipotential bonding, Double Insulation or Reinforced Insulation
high voltageelectrical safetycable protectioninsulationelectrical shock
2026 Season Regulations