IEC 61643소개
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IEC 61643-11 Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and test methods (replaces IEC 61643-1)IEC 61643-21 Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methodsIEC 61643-22 Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principlesEN 61643-11, 61643-21 and 61643-22Telcordia Technologies Technical Reference TR-NWT-001011ANSI/IEEE C62.xxUnderwriters Laboratories (UL) 1449.AS/NZS 1768
Each standard defines different protector characteristics, test vectors, or operational purpose.
The 3rd Edition of UL Standard 1449 for SPDs was a major rewrite of previous editions, and was also accepted as an ANSI standard for the first time.[12][13] A subsequent revision in 2015 included the addition of low-voltage circuits for USB charging ports and associated batteries. [14][15]
EN 62305 and ANSI/IEEE C62.xx define what spikes a protector might be expected to divert. EN 61643-11 and 61643-21 specify both the product's performance and safety requirements. In contrast, the IEC only writes standards and does not certify any particular product as meeting those standards. IEC Standards are used by members of the CB Scheme of international agreements to test and certify products for safety compliance.
None of those standards guarantee that a protector will provide proper protection in a given application. Each standard defines what a protector should do or might accomplish, based on standardized tests that may or may not correlate to conditions present in a particular real-world situation. A specialized engineering analysis may be needed to provide sufficient protection, especially in situations of high lightning risk.
Each standard defines different protector characteristics, test vectors, or operational purpose.
The 3rd Edition of UL Standard 1449 for SPDs was a major rewrite of previous editions, and was also accepted as an ANSI standard for the first time.[12][13] A subsequent revision in 2015 included the addition of low-voltage circuits for USB charging ports and associated batteries. [14][15]
EN 62305 and ANSI/IEEE C62.xx define what spikes a protector might be expected to divert. EN 61643-11 and 61643-21 specify both the product's performance and safety requirements. In contrast, the IEC only writes standards and does not certify any particular product as meeting those standards. IEC Standards are used by members of the CB Scheme of international agreements to test and certify products for safety compliance.
None of those standards guarantee that a protector will provide proper protection in a given application. Each standard defines what a protector should do or might accomplish, based on standardized tests that may or may not correlate to conditions present in a particular real-world situation. A specialized engineering analysis may be needed to provide sufficient protection, especially in situations of high lightning risk.