NEMAvsIP 美国NEMA标准 和ISO IP 绝缘等级对照表
[from NEMA 250-2003] In Non-Hazardous Locations, the specific enclosure Types, their applications, and the environmental conditions they are designed to protect against, when completely and properly installed, are as follows: Type 1 Enclosures constructed for indoor use to provide a degree of ...
NEMAStandardsPublicationNo.ANSIINEMA250-1997 EnclosuresforElectricalEquipment(IO00VoltsMaximum) Publishedby: NationalElectricalManufacturersAssociation 1300North17thStreet,Suite1847 Rosslyn,VA22209 OCopyright2001bytheNationalElectricalManufacturersAssociation.Allrightsincluding ...
NEMA 250-2003 国外国际标准规范.pdf,NEMA Standards Publication 250-2003 Enclosures for Electrical Equipment (1000 Volts Maximum) Published by: National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847 Rosslyn, Virginia 22209 © Co
1 The type of enclosure appropriate for the appl ication 2 The features the enclosure is expected to have 3 The tests appl ied to the enclosure to demonstrate its conformance to the description These standards are used by the electrical industry to provide guidel ines for the manufacture and ...
Table 1 [From NEMA 250-2003] Comparison of Specific Applications of Enclosures for Indoor Nonhazardous Locations Type of Enclosure Provides a Degree of Protection Against the Following Conditions Access to hazardous parts Ingress of solid foreign objects (falling dirt) Ingress of water (Dripping and ...
Type Number 1 2 3 3R 3S 4 and 4x 5 6and 6p 12and 12k 13 IP Designation IP10 IP11 IP54 IP14 IP54 IP56 IP52 IP67 IP52 IP54 --- 可编辑 何为NEMA 等级,如何与 IP 等级加以对照? NEMA 与 IP 为广泛公认的两种等级体系。NEMA 为美国国家电器制造 商协会的首字母缩写,在美国它通常用于设备...
NEMA 250: Environmental Operability Testing There are 13 types under the NEMA 250 standard. Each type specifies a different level of protection and operability for electrical enclosures. Many of the NEMA types are sequential, with each subsequent layer adding new protection. NEMA does not conduct te...
因此,美国四孔插头的设计符合NEMA标准,也被称为NEMA插头。 三、美国四孔插头的规格 美国四孔插头有多种规格,如14-50R、L14-30R等。这些规格的数字和字母组合表示了插头的电流容量、电压范围和插头类型等信息。例如,14-50R表示插头的电流容量为50安培,电压范围为125/25...
Type 10 : Requirements of Mine Safety and Health Administration Enclosures constructed to meet the requirements of the Mine Safety and Health Administration, 30 CFR, Part 18. For more detailed and complete information, NEMA Standards Publication 250-2003, Enclosures for Electrical Equipment (1000 Volts...