北美标准插头（无接地） North America—Ungrounded

       北美标准插头按NEMA 1-15，5-15，5-20，6-15，6 - 20P插头标准制造。在美国，这些美标两扁平行插头接受NEMA（美国电气制造商协会）的管理和UL认证。在加拿大的插头和插座标准是CSA C22.2-第42号。符合NEMA 5 - 15P输出款式的插头也用在墨西哥，日本，韩国，台湾，中美洲，哥伦比亚，委内瑞拉，厄瓜多尔和南美洲的西海岸地区的国家。在发展中国家的电力系统通常是没有接地。 插座网不建议切断接地插脚，消除了安全接地不太安全。但是可提供接地线补救措施，北美标插头的电气参数：2.5A-15A/125VAC。

      UL认证和CSA认证的插头。可配套多种尺寸和类型的电缆，主要用于数据传输，如电源服务器，计算机数据存储系统，网络设备，工业设备。标准15A/125VAC的插头普及最多，大电流20A/250VAC用的少。美标注塑电源线和插头在医疗机构中使用普便，安装方便，有专用的医疗级的插头系统。电线的一侧是额电流定为10A IEC-60320连接器。15A/125VAC最大输出评级。

       设备制造商要求设备的电源线受控于UL和CSA标准认证。为了协调与IEC标准的规范和UL修正案信息技术设备标准的变化。 UL认证（60950和CAN / CSA C22.2编号60950）和医疗设备标准（UL认证60601和CAN / CSA C22.2编号60601），UL认证60950和CAN / CSA C22.2-60950联合声明，电源线的接地导线必须是双色线 即绿色和黄色。

        UL认证60601和CAN / CSA C22.2编号60601要求接地为绿色/黄色，零线为浅蓝色，火线为褐色。有迹象表明，UL和CSA不得硬性执行这些要求。在这两种情况下，建议使用的极性识别颜色（棕色，蓝色，绿色/黄色）彩色编码的电缆，UL和CSA认证要求接受。在此之前，有的设备制造商能够区分北美电源线极性颜色编码，即黑，白，绿，国际标准通用颜色编码，即红，蓝，绿/黄。现在，UL和CSA认证要求设备制造商需统一标准电源线的识别（火线-棕色，零线-蓝色，地线-绿色/黄色）。

These cords utilize the NEMA 1-15, 5-15, 5-20, 6-15, and 6-20P plug standards. In the U.S., these straight-blade plugs are detailed in NEMA (National Electrical Manufacturers Association) publication WD6 and are incorporated into UL 498 by Underwriters Laboratory. Canadian plug and socket standards are outlined by CSA in publication C22.2, No. 42.

The NEMA 5-15P style plug is also used in Mexico, Japan, parts of Korea, Taiwan, Central America, Colombia, Venezuela, Ecuador and on the west coast of South America. The electrical systems in developing countries are usually ungrounded. Interpower Corporation does not recommend cutting off the ground pin so that the plug can be mated with a two-pole, ungrounded socket. This eliminates the safety ground connection. We offer ungrounded cords, rated at 2.5A–15A/125VAC.

All include UL listing and CSA certification. we also offer other cable sizes and types. Applications include data networking equipment such as power servers, computer data storage systems, and industrial equipment requiring more than the standard 15A/125VAC, but less than 20A/250VAC.
The North American molded hospital-grade power cords and cordsets are designed for use in hospital and medical settings. They carry the characteristic "green dot" on the plug indicating hospital-grade on the plug. The cordsets can be terminated with a variety of IEC 60320 connectors and have a maximum output rating of 15A/125VAC.

Equipment manufacturer's specifying power cords for their equipment should be aware of changes made in 2000 by UL and CSA to two major equipment standards. In an effort to harmonize with equivalent IEC standards, U and CSA made changes to information technology equipment standards. (UL 60950 and CAN/CSA C22.2 No. 60950) and medical equipment standards (UL 60601 and CAN/CSA C22.2 No. 60601).

UL 60950 and CAN/CSA C22.2 number 60950 state that for all new submittals, the ground conductor of power cords must be green/yellow in color.

UL 60601 and CAN/CSA C22.2 number 60601 require the ground conductor to be green/yellow and the neutral conductor to be light blue, for power cords on all new submittals. Indications are that UL and CSA may not be rigidly enforcing these requirements and may be making allowances for the use of the traditional North American (BWG) colors. Check with agency officials if you have any questions regarding an application.

In both cases, Interpower Corporation recommends the use of BBG/Y (Brown, Blue, Green/Yellow) color coded cable, which is accepted by UL and CSA. Previously, it was necessary for equipment manufacturers to distinguish between North American power cord conductor color coding, i.e. black, white, and green, and the international conductor color coding, i.e. brown, blue, green/yellow. Now equipment manufacturers have a standard color coding scheme. However, both color coding options are available from stock