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Polyphase bus bar system has phase conductors covered by separate electric insulation layers with axially, spirally or radially formed integral ribs and barriers
Polyphase bus bar system has phase conductors covered by separate electric insulation layers with axially, spirally or radially formed integral ribs and barriers
The outer surfaces of phase conductors (2,3,4) are covered with electrical insulation layers (5,9,13) applied by extrusion process. Each insulation layer has three integral insulating ribs (6-8,10-12,14-16) at angular spacings of 120 degrees, and integral barriers (18). The ribs may be formed axially or spirally or radially only on a part the length of the phase conductors.
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