The shielding of screened multi-core cables is usually arranged as drain wire with aluminum-coated foil. This shielding, which is in many cases sufficient, is electrically effective and easy to process in harness making. Shielding with braided copper wires or with spiral screen increases the effectiveness of the screening for pulses in lower frequency ranges.
Those wires are mainly used in temperature classes T2 (105°C/3.000h), T3 (125°C/3.000h) and T4 (150°C/3.000h).