Wires and extension cords / compensation > 02 - Precautions and Recommendations

The choice of the insulation material must be compatible with the environment in which will be installed (temperature, humidity, mechanical stress, etc.);

For applications that require resistance to moisture, use of isolation in teflon, PVC, silicone or Kapton are recommended;

Applications that require high temperature insulated wire and cable using glass fiber or ceramic fiber;

metallic braid aids in the protection of cables from mechanical actions and can be used as a shield;

flexible cables allow easier installation, reduces the possibility of damage the insulation during installation and once installed, has the same technical characteristics of the wires (hard);

Ensure correct polarity of the wires and cables for connection to the instrument, an error of reverse polarity, resulting in errors of measurement;

The wires and extension cords or compensation, should not be installed parallel or near power lines;

Using shielded cables and drain conductor to minimize interference in the signals caused by electrical fields (electrostatic noise).

Table 1 : insulation characteristics

Insulation	Temperature use	Resistance abrasion	Resistance moisture
PVC	-20 à 100ºC	Very Good	Excellent
Fiber	400ºC	Regular	Poor
Silicone	-30 à 200ºC	Good	Good
Teflon	-100 à 200ºC	Excellent	Excellent
Ceramic fiber	800ºC	Poor	Poor
Kapton	315ºC	Regular	Good

Table 2 : Reduced Sizes

Kind	Gauge	internal insulation	external insulation
K	2x32 AWG	teflon	teflon
K	2x36 AWG	teflon	teflon
J	2x36 AWG	teflon	teflon
T	2x30 AWG	teflon	teflon
T	2x36 AWG	teflon	teflon

Specially designed for applications where size is critical.

Table 3: AlutHel High Temperatiure

Kind	Gauge	Internal Insulation	External Insulation
K	2x20 AWG	Ceramic	Ceramic