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| UNDERWRITERS LABORATORIES | APPLIANCE WIRING MATERIAL | ||||
| Subj.758 | Section 2 | Page 2464 | Issued:1968-05-02 |
| Revised:2009-05-26 | |||
| Style 2464 | Jacketed Cable. | |
| Rating | 80 deg C, 300 Vac, Cable flame. |
| Insulation | Labeled or complying with manufacturer's AWM Procedure. |
| Assembly | Two or more singles, twisted pairs of groups of twisted singles twisted together or singles or groups of singles may be laid parallel to form flat, oval or round cable. Lay not specified. Barrier layer and/or fillers optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG size. |
| Shield | Optional. |
| Covering | Optional. |
| Braid | Optional, provided over Jacket. |
| Jacket | PVC |
| Dia of Cable under jacket | Min average | Minimum at any point |
| 0.700 inch or less | 30 mils | 24 mils |
| 0.701-1.000 inch | 45 mils | 36 mils |
| 1.001-1.500 inch | 60 mils | 48 mils |
| 1.501-2.500 inch | 80 mils | 64 mils |
| 2.501-4.000 inch | 110 mils | 88 mils |
| 4.001 inch and larger | 140 mils | 112 mils |
| Standard | Appliance Wiring Material UL 758. |
| Marking | General. |
| Use | Internal wiring or external interconnection of electronic equipment (such as desk-type calculators, dictating machines, or x-ray equipment). |
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| 上面對材料沒有要求,只要你的芯線是你們公司有UL認證并且滿足80℃/300V型號就可以了。 |
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PE材料一般燃燒試驗不會合格,所以它達不到UL標準。
樓主的問題可以在下線表面涂布硅油。
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2464的線材在ul標里對耐燃有要求的.一定要達到vw-1的標準.所以用pe或pp是肯定不行的.最好還是用sr-pvc比較好.至於芯線粘在一起主要應該是你的外被od設計太大.如果不能改變od.可以采取進模.過粉.過油.或押一層中被的方式解決.外被押出時溫度不要太高.
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1.改變膠料硬度,用30P SR-PVC芯線料試試
2.用隔離物,如用離型劑
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過粉或包紙就好了
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PE料一般廠認證一般是80度 30V的,但是UL2464 是80度 300V的,所以正常情況下用PE料做是不行的,除非你當初有認證的80度 300V的PE料才行!粘在一起,可以過離型劑,一般都是外皮太厚所致
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芯線用半硬質35P SR-pvc做,芯線需過粉或離型劑。機頭離第一段水槽近點。
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過油過粉或包紙。外經要是大,就押中被吧
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這個問題解決得不錯,學習了.18