Compensation cables – extension cables Extension cables are used to extend thermocouple circuits; they take the form of electrical cables whose conductors are made of the same materials as those of the thermocouple. Compensation cables are made of other (less expensive) materials whose thermoelectric characteristics are identical up to 100°C. Compensation cables are defined by IEC Standard 584-3, which specifies, among other things, the color coding of the cables as well as their polarity.
