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TECHNICAL DATASTANDARDS & CERTIFICATIONS806exmweb.com | 1-800-363-2423 | [email protected] Publication 60529 Classification of Degree of Protection Provided by Enclosures provides a system for specifying the enclosures of electrical equipment on the basis of the degree of protection provided by the enclosure. IEC 60529 does not specify degrees of protection against mechanical damage of equipment, risk of explosions, or conditions such as moisture (produced for example by condensation), corrosive vapors, fungus, or vermin, The NEMA Standard for Enclosures for Electrical Equipment does test for environmental conditions such as corrosion, rust, icing, oil, and coolants. For this reason, and because the test and evaluations for other characteristics are not identical, the IEC Enclosure Classification Designations cannot be exactly equated with the NEMA type numbers. The IEC designation consists of the letters IP followed by two numerals. The first characteristic numeral indicates the degree of protection provided by the enclosure with respect to persons and solid foreign objects entering the enclosure. The second characteristic numeral indicates the degree of protection provided by the enclosure with respect to the harmful ingress of water. Table A-1 provides an equivalent conversion from the NEMA enclosure Type number to the IEC Enclosure Classification Designations. The NEMA enclosure type numbers meet or exceed the test requirements for the associated IEC Classification; for this reason Table A-1 cannot be used to convert from IEC classifications to NEMA enclosure Type numbers.Comparison Between NEMA Enclosures Type Numbers and IEC Enclosure Classification DesignationsThe RoHS Directive stands for \ restriction of the use of certain hazardous substances in electrical and electronic equipment\This Directive bans the placing on the EU market of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants. California has passed SB 20: Electronic Waste Recycling Act of 2003, or EWRA. This law prohibits the sale of electronic devices after January 1, 2007, that are prohibited from being sold under the EU RoHS directive, but across a much narrower scope that includes LCDs, CRTs, and the like and only covers the four heavy metals restricted by RoHS. EWRA also has a restricted material disclosure requirement. Other US states and cities are debating whether to adopt similar laws, and there are several states that have mercury and PBDE bans already. Federal RoHS-like regulation in the US is unlikely in the near to medium term. The CEA Mention refers to the CEA-310-E Mounting Flange standard defined by the Consumer Electronic Association; it supersedes the EIA-310-D defined by the Electronic Industries Association. The configuration of specific items in this document is based upon a 19-inch rack design as defined in the CEA-310-E Standard. This design applies to the front internal mounting surface within a Cabinet Enclosure or Rack that provides a mounting surface for Computer Servers, electrical equipment, structure guides, slide rails, and/or panels.CEAThis new UL Recognized Component Mark,which became effective April 1, 1998, may be used on components certified by UL to both Canadian and U.S. requirements. Although UL had not originally planned to introduce a combined Recognized Component Mark, the popularity of the Canada/U.S. Listing and Classification Marks among clients with UL certifications for both Canada and the United States has led to the new Mark.