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Heat Tracing Circuit Sizing

Electrical trace-heating power from pipe insulation heat loss, heater cable selection, and circuit voltage-drop/breaker sizing.

AAJappsEngineering Calculation Report

Heat Tracing Circuit Sizing

IEEE 515 practice; IEC 60079-30 for hazardous areas

Generated

For preliminary engineering use only — always verify results against project-specific standards and a qualified engineer's review before use in a real design.

Pipe & insulation

Pipe outer diameter

Insulation thickness

Insulation thermal conductivity(k)

W/(m·K)

Maintain temperature

°C

Design minimum ambient

°C

Design safety factor

Heater & circuit

Heater rated output

W/m

Circuit length

Circuit voltage

Breaker rating

Cable resistance(constant-wattage only)

Ω/m

Heat loss & heater selection

Steady-state heat loss7.98 W/m

Required (with design factor)10.38 W/m

Selected heater adequate20 W/m ✓

Circuit

Circuit power1600 W

Circuit current6.96 A

Within breaker rating16 A ✓