PTFE/FEP Insulated

The insulation of a conductor influences not only electrical safety, but also the behavior of the electric field around the conductor.

Dielectric Constant, Dielectric Loss Factor

The dielectric constant describes the extent to which a material can be electrically polarized in an electric field. In PTFE and FEP, almost exclusively so-called electronic polarization occurs. The fluorine atoms are arranged symmetrically around the carbon chain. Consequently, there are no permanent dipoles in the molecule, so nothing can “align” itself in the electric field (orientation polarization). The material reacts very little to the external field, which is why the dielectric constant is extremely low and remains extremely stable across almost all frequencies.

The dielectric loss factor describes how much electrical energy is converted into heat within the insulator. In an alternating current field, any permanent dipoles present in the molecule would have to rotate back and forth in sync with the frequency. This causes molecular friction and thus heat. Since there are no dipoles that could oscillate due to the lack of polarity, there are virtually no friction losses.

Dielectric Absorption

Every insulating material stores a portion of the field energy and releases it with a time delay. This effect is known as dielectric absorption and describes the phenomenon whereby a capacitor or a cable spontaneously builds up a voltage again after it has been completely discharged and its contacts left open. Strictly speaking, this effect is classified as dielectric loss, but it occurs over a longer time scale. The higher this absorption, the more easily fine transients can be smoothed out or altered in their temporal structure.

The relationship to the above values for the dielectric constant and the dielectric loss factor is directly proportional: low polarization means low absorption. PTFE and FEP have particularly low dielectric absorption. As a result, less energy is stored in the insulator and released with a time delay. The temporal integrity of the signal is better preserved.

Electric Field Propagation

In addition to low absorption, PTFE and FEP are characterized by a low dielectric constant. The electric field around the conductor is less affected, capacitive effects remain under control, and signal propagation remains reproducible.

Mechanical Stability

PTFE and FEP are extremely thermally and mechanically stable. They ensure consistent conductor geometry and contribute to the structural stability of the entire system. Electrical and mechanical stability are closely intertwined here.

Tonal Effect

In practice, this is expressed in clear, precise impulse imaging, high levels of detail audibility and a quiet, stable spatial presentation. The playback appears relaxed and structured, without artificial sharpness or nervous anxiety.

PTFE/FEP insulated conductors are therefore the technically consistent solution for applications with the highest demands on precision, reproducibility and long-term stability.