Certificate NO SIRA 03 ATEX 3376U
>> Parallel circuit heating cable is designed to be cut from reel lengths and site terminated to suit pipework. The heating cable consists of a number of short heating zones, each connected across a pair of continuous bus-wire conductors.
Each complete heating zone will give its full rated design output with circuit voltage applied to the bus-wire conductors.
The heating cable has a core comprising two bus-wire conductors contained within an extruded silicone rubber sheath. The sheath is notched on alternate sides at predetermined intervals to expose a short section of bus-wire conductor.
Nickel-chromeresistance wire is wrapped at regular spacing around the core as a continuous conductor, making contact with the bus-wires at the exposed points.
After completion of the heater conductor wrapping, a high temperature soldered joint is made at each contact point ensuring that a number of conductor strands are securely bonded to the bus-wires.
An extruded outer sheath of silicone rubber is then placed over the core and heater element to complete the heater cable assembly.
|Type||Volts||Watt/m||Heather zone length (m)||Max circuit length (m)|
|Conductors||Copper stranded flexible -30/0,25mm (1,5mm²)|
|Heater element||Nickel-chrome 80-20|
|Solder||High melting point 296°C|
|Outer sheath||Silicone rubber|
|Width||13,3mm (Braided version)|
|Thickness||9,5mm (Braided version)|
|Temperature range||-60°C to +200°C|
|Standard||To BS EN 60079|
|Min bend radius||25mm|
A 30mA trip Residual Current Circuit Device (RCCD) or Earth Leakage Circuit Breaker (ELCB) is recommended for use with heating cables.
|Type||Maximum temperature of surface to be heated ˚C within|
|Appropriate T class|
|SCBX 8 110V||52||70||112||188|
|SCBX 12 110V||–||50||95||173|
|SCBX 16 110V||–||–||76||158|
|SCBX 20 110V||–||–||55||144|
|SCBX 30 110V||–||–||–||80|
|SCBX 8 240V||52||70||112||187|
|SCBX 12 240V||–||50||95||173|
|SCBX 16 240V||–||–||76||158|
|SCBX 20 240V||–||–||55||144|
|SCBX 30 240V||–||–||–||93|