Flame-retardant three-layer insulated wire
The invention relates to a flame-retardant three-layer insulated wire which comprises a copper conductor, two flame-retardant modified polyester insulating layers and a flame-retardant modified polyamide resin layer, wherein the two flame-retardant modified polyester insulating layers are squeezed a...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to a flame-retardant three-layer insulated wire which comprises a copper conductor, two flame-retardant modified polyester insulating layers and a flame-retardant modified polyamide resin layer, wherein the two flame-retardant modified polyester insulating layers are squeezed and wrapped outside the copper conductor; and the flame-retardant modified polyamide resin layer is squeezed and wrapped outside the two flame-retardant modified polyester insulating layers. Compared with the prior art, the invention has the advantages that the product provided by the invention achieves Grade B (the temperature resistant level of 130 DEG C), and the flame retardant level meets UL V-0 standard. Compared with the existing Grade B three-layer insulated wire, the flame retardancy ofthe winding wire can be greatly enhanced. When being used in transformers and high-frequency winding coils, the flame-retardant three-layer insulated wire provided by the invention greatly enhances the safety and fire resista |
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