CU-FE and CU-FA series heating cables

 

CONSTITUTING

CU-FE and CU-FA series resistance heating cables include a single heating core made of resistive alloy.

Insulation is made with Very High Temperature silicone rubber or FEP or PFA fluorinated resin, depending on applications and specifications.

A metallic braid (tinned copper or stainless steel) can be proposed assuming a better mechanical protection and allowing to perfectly earth the installation.

An overjacket is proposed when corrosives risks are present

WORKING PRINCIPLE

CU-FE and CU-FA heating cables can be energized from :

SINGLE SUPPLY

THREE PHASED SUPPLY

APPLICATIONS

Series resistance heating cables are usually designed for the following applications :

· Temperature maintenance in long pipes from one single supply point

· Where the dissipated power has to be balanced (on 3 phased supply)

· Temperature maintenance in glass houses

· Vine heating

MAIN ADVANTAGES

This technology involves the following advantages :

· No thermal ageing of the heating element

· Large range of ohmic values

· Supply voltage : 12 to 400 volts

· Balanced power on 3 phased system

MAIN CHARACTERISTICS

Circuit length : 1 to 1000 meters

Maximum exposure temperature when energized : depending on watt loading and insulation designed

Maximum exposure temperature (de energized)

· 85°C for PRC insulation

· 105°C for very high temperature PVC insulation

· 125°C for TPR insulation

· 200°C for FEP or silicone insulation

· 260°C for very high temperature silicone rubber insulation

Electrical protection (fuses) : nominal power * 1.25 to 1.40
Differential protection : 30 mA

SUMMARY