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[结构重量] 请问2464和2725的区别在那些地方呢?
P:2008-11-22 11:46:30
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UNDERWRITERS LABORATORIES | APPLIANCE WIRING MATERIAL |
Subj.758 | Section 2 | Page 2464 | Issued:1968-05-02 |
Revised:2008-05-27 |
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. |
Jacket | PVC |
Dia of Cable under jacket in inches of 0.700 or less | 30 mils min average | 24 mils minimum at any point |
0.701-1.000 dia | 45 avg | 36 min |
1.001-1.500 dia | 60 avg | 48 min |
1.501-2.500 dia | 80 avg | 64 min |
2.501-4.000 dia | 110 avg | 88 min |
4.001 dia and larger | 140 avg | 112 min |
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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UNDERWRITERS LABORATORIES | APPLIANCE WIRING MATERIAL |
Subj.758 | Section 2 | Page 2725 | Issued:1975-05-02 |
Revised:2008-05-27 |
Style 2725 | Electronic Cable. |
Rating | 60, 80 deg C, 30 Vac, Horizontal flame. |
Insulation | Labeled or Complies with manufacturer's AWM Procedure. |
Assembly | Two to four parallel, or two or more twisted insulated singles or groups of twisted singles twisted together or groups of twisted singles may be laid parallel to form flat or oval cable. Lay not specified. Barrier layer and/or fillers optional. Manufacturer shall maintain a complete description of each assembly. Diameter of assembly under jacket one inch maximum. |
Shield | Optional. |
Jacket | PVC, 9 mils min average, 7 mils minimum at any point. |
Standard | Appliance Wiring Material UL 758. |
Marking | General. |
Use | Internal wiring of electronic equipment in Class 2 systems only. |
英文水平有限,以上的红色字中是什么意思呢?