| 摘要 |
An electrical heating element for a radiant electric heater takes the form of an elongate electrically conductive strip adapted for edgewise mounting on a base of thermal and electrical insulation material. The strip includes an elongate continuous portion and a discontinuous portion integral, and preferably coplanar, with the continuous portion, the discontinuous portion including a plurality of mounting tabs extending in a direction away from the continuous portion at spaced-apart locations, for securement to or in the base. Provided in each tab is at least one aperture such as a hole or slot or slit, so that thermal conduction into the tabs from the continuous portion is reduced or minimized and also variation in electric current density along the continuous portion of the strip is reduced or minimized when the strip is electrically connected for operation in a radiant electric heater.
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