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2. Trace heating - Wikipedia

   en.wikipedia.org/wiki/Trace_heating

   Electric heat tracing, heat tape or surface heating, is a system used to maintain or raise the temperature of pipes and vessels using heat tracing cables. Trace heating takes the form of an electrical heating element run in physical contact along the length of a pipe.

3. File:Tubular Electric Heater diagram.svg - Wikipedia

   en.wikipedia.org/wiki/File:Tubular_Electric...

   English: Illustration of a tubular electric heater with the selection of elements and their description. 1 = Resistance heating element, 2 = Electrical insulator, 3 = Metal casing Русский: Иллюстрация трубчатого электро-нагревателя (ТЭН) с выделением элементов и их ...

4. Single-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Single-phase_electric_power

   In electrical engineering, single-phase electric power (abbreviated 1φ) is the distribution of alternating current electric power using a system in which all the voltages of the supply vary in unison. Single-phase distribution is used when loads are mostly lighting and heating, with few large electric motors.

5. Wiring diagram - Wikipedia

   en.wikipedia.org/wiki/Wiring_diagram

   An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

6. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   Waste heat from fluorescent lamps is captured in the return air of the heating system; in large buildings a substantial part of the annual heating energy is supplied by the lighting system. However, this waste heat becomes a liability when using air conditioning. Such expenses can be avoided by integrating an energy efficient lighting system ...

7. Crankcase heater - Wikipedia

   en.wikipedia.org/wiki/Crankcase_heater

   The crankcase heater keeps refrigerant at a temperature higher than the coldest part of the system. A crankcase heater generally has the same electrical symbol as a resistor because it converts electricity directly into heat via electrical resistance. The resistance in the heater coil determines the heat it produces when voltage is applied. [1]