Cross-linked polyethylene insulated halogen-free low-smoke flame-retardant rat-proof and termite-proof medium-voltage power cable
The invention discloses a cross-linked polyethylene insulated halogen-free low-smoke flame-retardant rat-proof and termite-proof medium-voltage power cable, which comprises a cable core and a flame-retardant wrapping tape, the cable core is embedded in the flame-retardant wrapping tape, and the cabl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a cross-linked polyethylene insulated halogen-free low-smoke flame-retardant rat-proof and termite-proof medium-voltage power cable, which comprises a cable core and a flame-retardant wrapping tape, the cable core is embedded in the flame-retardant wrapping tape, and the cable core comprises three conductor wire cores, each conductor wire core comprises a conductor which is sequentially coated with a conductor shielding layer, a cross-linked polyethylene insulating layer, an insulating shielding layer and a metal shielding layer from inside to outside, and a gap between the flame-retardant wrapping tape and the cable core is filled with a filling layer; the conductor shielding layer, the cross-linked polyethylene insulating layer and the insulating shielding layer are formed by co-extruding three layers; the cable adopts a three-layer co-extrusion technology to extrude the conductor shielding layer, the crosslinked polyethylene insulating layer and the insulation shielding layer at one |
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