What is BS EN 3371 - Verification of bonding about ?
BS EN 3371 specifies the characteristics as well as the verification of bonding in on-board aircraft electrical systems.
They refer to requirements relating to the effect of lightning, return currents, electromagnetic interference, as well as to the accumulation of electrostatic charges and personnel shock hazards.
BS EN 3371 states the maximum permissible resistance values which guarantee, according to the installation, good conductivity of the whole of the structure, of the whole installation and the bonding terminals; these values shall ensure correct operation of the systems.
The rules of installation are defined in EN 3197 . BS EN 3371:2019 history
2019BS EN 3371:2019 Aerospace series. Electrical bonding. Technical specification