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ΟΔΗΓΙΕΣ ΠΡΟΕΤΟΙΜΑΣΙΑΣ ΑΝΤΙΣΤΑΣΗΣ
CONSTANT POWER PARALLEL HEATING
CABLE - CPCx
Silicone rubber insulation with optional outer metal protection (*at request)
Nickel - Chromium alloy heating wire (R)
Contact points at intervals of 500 mm.
Multi - wire copper conductor (N)
Multi - wire copper conductor (P)
Two conductors with an appropriate section (P-N), insulated in silicone rubber, are wound in a Nickel - Chromium alloy wire which constitutes the active and heating part of the cable. This wire is alternatively connected to two conductors through contact points, specially positioned at regular intervals of 500 mm. thus forming, from an electrical point of view, a series of parallel resistances of equal value (R). Applying the input voltage to one end of the heating circuit and leaving the other end open, all the resistances receive power with the same voltage and therefore dissipate the same power, owing to the Joule effect. Consequently, the power per meter provided will always be constant at any temperature, independently from the length of the circuit. In order to guarantee electrical insulation, high temperature performance, flexibility and resistance to corrosion and to chemical agents, the cable is coated with a protective sheath made of silicone rubber with the adequate thickness that can be further clad in a multi- wire metal braiding in order to enhance resistance to shocks and abrasions, improve the thermic exchange and guarantee the heating cable earthing when requested.
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