How a SENTECH ignition lead is built

A SENTECH ignition lead consists of a synthetic elastomer outer jacket, a reinforcing braid or tape, an insulating layer with excellent dielectric properties, a stainless conductor wound at 50 turns/cm on a ferromagnetic core, and a glass-fibre and polyaramid support core. The conductor and ferromagnetic material together suppress interference along the whole cable and give a stronger, longer spark.

SENTECH ignition lead cross-section: outer jacket

1. Synthetic elastomer outer jacket, resistant to temperature changes (cold and heat) and to mechanical and chemical attack (water, brine, oils, fuel, etc.). It performs excellently in mechanical terms and its properties do not change over time.

SENTECH ignition lead cross-section: reinforcing braid

2. Reinforcing braid or tape.

SENTECH ignition lead cross-section: insulating layer

3. Synthetic elastomer insulating layer with excellent dielectric (insulating) properties. A high breakdown voltage means no micro-discharges.

SENTECH ignition lead cross-section: spirally wound conductor

4. Stainless electrical conductor, densely and spirally wound on a ferromagnetic core (50 turns/cm). It carries the high-voltage current while concentrating the induced magnetic field (interference) inside the cable.

SENTECH ignition lead cross-section: ferromagnetic core

5. Ferromagnetic material that absorbs interference. Items 4 and 5 form an interference suppression system along the entire length of the cable – giving a higher ignition current and a longer spark.

SENTECH ignition lead cross-section: synthetic support core

6. Synthetic core made of glass fibre and polyaramid, which supports the ferrite core.