Fluid pipe for guiding and heating medium, has heating elements connected with supply voltage serially or parallelly such that heating power of pipe is determined at predetermined supply voltage by total resistance of heating elements

摘要

The fluid pipe has a heating tube (1) comprising a conduit (2) and electrical heating elements (3-6) i.e. heating conductors, attached to the conduit. The heating elements run along the conduit, and are connected with each other at ends. The heating elements are connected with a supply voltage serially or parallelly such that heating power of the fluid pipe is determined at a predetermined supply voltage by total resistance of the heating elements. The heating elements comprise wires i.e. resistance wires, provided with an electric insulation.