Application

Parallel constant wattage heating cable can be used for pipe and equipment freeze protection and process temperature maintenance requiring high power output or high temperature exposure. This type provide an economical alternative to self regulating heating cable but requires more skill for installation and more advanced control and monitor system.Constant wattage heating cables can provide process temperature maintenance up to 150°C and can withstand exposure temperatures up to 205°C with power on.

Working principle

Two paralleled stranded copper wire as the bus wires with insulation layer FEP,then wrap the nickel-chromium alloy as the heating wire connect with bus wires at regular intervals,form the parallel resistance.finally covered with insulation jacket FEP.When the bus wires power on,each parallel resistance begin to heat.thus form a continuous heating cable.

Structure

1.Tinned copper stranded wire   2.FEP insulation layer   3.FEP insulation layer    4.Ni-Cr alloy wire

5.PEP insulation layer 6.Tinned copper Metal braid 7.FEP outer sheath

RDP3

RDP3 Three phase constant wattage heating cable

Three phase constant wattage heating cable adopt three phase triangle power supply.have the characteristics of single phase constant power heating cable.special used for long distance and large diameter pipeline’s heat tracing and preservation.Application such as factory Zone 1,Zone 2 explosive gas mixture T3 area.

Structure

1.Tinned copper stranded wire  

2.FEP insulation layer

3.FEP insulation layer            

4.Ni-Cr alloy wire

5.PEP insulation layer            

6.Metal braid

7.FEP outer sheath

Working principle

Three paralleled stranded copper wire as the bus wires with insulation layer FEP, then wrap the nickel-chromium alloy as the heating wire connect with bus wires at regular intervals, repeated cycle connection(like:AB-BC-CA-AB) form the parallel resistance between two phase, finally covered with insulation jacket FEP. When the bus wires power on three phase, each parallel resistance begin to heat.thus form a continuous heating cable.

Product specification and technical features

Rated voltage: 380V    

Max exposure temperature: 205°c

Normality insulation resistance: ≥20M ohm    

Protection level: IP54

Dielectric strength: 2500V 50Hz/1min

Insulation material: FEP    

Size: 6.3×12mm

Approvals: CE GOST

Certificates