Specifies the dimensioning of clearances and creepage distances for spacings equal to or less than 2 mm for printed wiring board and equivalent constructions, where the clearance and the creepage distance are identical and are along the surface of solid insulation.<\/p>\n<\/p>\n
\nThe dimensioning in this standard is more precise than that provided by IEC 60664-1. However, if the precision provided by this standard is not required, IEC 60664-1 may be applied instead. <\/p>\n<\/p>\n
\nThis standard is based on the following criteria for dimensioning:<\/p>\n
\n– minimum clearances independent of the micro-environment;<\/p>\n
\n– minimum creepage distances for pollution degrees 1, 2 and 3 to avoid failure due to tracking; <\/p>\n
\n– minimum creepage distances to avoid flashover across the insulating surface.<\/p>\n<\/p>\n
\nA test method is specified for allocating unclassified insulating material to the relevant water adsorption group. <\/p>\n<\/p>\n
\nThe following major technical changes are:<\/p>\n<\/p>\n
\n– Amendment of Japanese mains conditions with regard to the rated impulse voltages, the rationalized voltages and the nominal voltages of supply systems for different modes of overvoltage control. <\/p>\n<\/p>\n
\n– Amendment of dimensioning of clearances smaller than 0,01 mm.<\/p>\n
\nAlignment of the table and the corresponding formula regarding test voltages for verifying clearances at different altitudes. <\/p>\n<\/p>\n
\n– Amendment of interpolation of the creepage distance values for functional insulation.<\/p>\n<\/p>\n
\n– Revision of the former Clause 4 "Tests and measurements" (now Clause 6) to achieve a more detailed description of the tests and their purpose, the test equipment and possible alternatives.<\/p>\n<\/p>\n
\nHas the status of a basic safety publication in accordance with IEC Guide 104.<\/p>\n","protected":false},"excerpt":{"rendered":"
Insulation coordination for equipment within low-voltage systems – Part 5: Comprehensive method for determining clearances and creepage distances equal to or less than 2 mm<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n IEC<\/b><\/a><\/td>\n 2007-07-30<\/td>\n 96<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":566387,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[498,2636],"product_tag":[],"class_list":{"0":"post-566371","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-080-30","7":"product_cat-iec","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/566371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/566387"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=566371"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=566371"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=566371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}