The ignition lead consists of a cable with silicon sheated fibre glass enclosed with a wire. The radio interferenceresistance is calculated as: 1,8 - 2,2 k Ohm per 1 m cable during high-tension operation. This system is used by,among others, Citroen, Peugeot, Renault, Toyota, Nissan and Volvo.
The ignition lead consistsof acablewithacopperwirecore, 7 mm indiameter.The radio interference suppressionis built into the spark-pluganddistributor sockets.The interference suppression is thus located closetothe sourceofthe interference.Thissystemis mainly used byAudi, BMW, Mercedes and VW.
The ignition lead isacablewith carbon-coated fibre glass7mm indiameter,or8 mm in the caseof Ford.The radio interference resistance is calculated as10–23 k Ohm per 1 mcable.Thissystemis used byOpel, Ford, Fiat, Alfa Romeo, Mazda, Honda andmanyothers.