可以是也可以不是,UL2464可以设计成好多种规格
UL1571 30V 80C，16-30AWG 电子电器内部连接，笔记本变压器线 |
UL1185,300V 80 C单芯屏蔽线，30-4AWG 单根或者裸铜，镀锡铜丝，用于录放音系统，电子电路等 |
UL1095 300V 80C 30AWG-16AWG 电子电器内部连接 |
UL2464,300V 80 C电脑线，无屏蔽，单屏蔽，双屏蔽，30AWG-18AWG 绞合裸铜，镀锡铜丝，电子电器内外部连接线 |
UL2468,300V 80 C排线，30WAG-16AWG 单根，绞合铜丝，电器电脑内部连接线 |
UL2517 /2464/20276-SSS ,300V 105° 28-16AWG 移动线缆，电子电器，通用线缆，机器人用线缆 |
UL2547,80° 多芯屏蔽线缆80C，30-16AWG 2-3芯，录放音响电子系统 |
UL2651 排线300V 105C灰排彩排线，用于IDC 连接器配合PICH 2.54/2.0/1.27/1.0MM |
UL2725,30V 80 C 30-28AWG 2-13芯，用于2类系统视听电子设备内外部连接线 |
UL2835 30V 60C，屏蔽，无屏蔽，32-22AWG 用于2级电路电子设备内部连接线，游戏机线 |
| 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. |
| Braid | Optional, provided over Jacket. |
| 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. |
| Use | Internal wiring or external interconnection of electronic equipment (such as desk-type calculators, dictating machines, or x-ray equipment). |
ＵＬ２４６４是可做屏蔽线也可做非屏蔽线的．ＳＨＩＥＬＤ ＯＰＴＩＯＮＡＬ是屏蔽可选的意思，也意味着没有屏蔽也可以的．
UL 规范一般都包含屏蔽和非屏蔽两种的，不会单独出。
ＵＬ２４６４可做屏蔽线也可做非屏蔽线的．
Shiled 、Braid ＯＰＴＩＯＮＡＬ是屏蔽可选的意思
UL 2464可以做屏蔽或非屏蔽, 但要考虑VW-1 测试
加屏蔽更好通过
但是不做屏蔽芯线一定要做PVC,否者VW-1过不了
UL2464 看LZ做哪种规格的，有屏蔽和非屏蔽两种！
看style page 就好了啊，屏蔽和非屏蔽的都能做。
