This Standard deals with a test procedure for simulating the effects of rough handling shocks, primarily in equipment-type specimens, the effects of knocks, jolts and falls which may be received during repair work or rough handling in operational use.<\/p>\n
\nThis procedure does not simulate the effects of impacts received during transportation as loosely constrained cargo.<\/p>\n
\nWhere the effects of loose cargo transportation are to be assessed, test Ee: Bounce specified in IEC 60068-2-55 should be used.<\/p>\n
\nAlso this procedure does not simulate the effects of shock applied to installed equipments.<\/p>\n
\nWhere this effect is to be assessed refer to test Ea: Shock specified in JIS C 60068-2-27.<\/p>\n
\nTesting should only be specified for equipment likely to receive such rough handling, for example those of small to medium size and mass, and should only be applied to those faces and corners where there is a risk of such treatment being encountered.<\/p>\n
\nIn general, equipment which is frequently handled and serviced (for example field equipment and unit spares) can be considered at risk, whereas equipment forming an integral part of a permanent installation would not normally be considered at risk and need not be tested.<\/p>\n
\nTesting may not be applicable to fragile unprotected equipment of irregular shape (for example aircraft nose radar) which, when removed from the installation would be contained in a handling frame or jig.<\/p>\n
\nIt may however be applicable to these items of equipment when they are in their transit case or in their handling frame or jig.<\/p>\n
\nFor equipment which stands only on one face (for example the normal base) the test is generally only applied to that face.<\/p>\n
\nShock tests are performed on the specimen when fixed to the test machine.<\/p>\n
\nDrop and topple, free fall, repeated free fall and bounce tests are performed with the specimen free.<\/p>\n
\nNOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.<\/p>\n
\nlEC 60068-2-31:2008 Environmental testing-Part 2-31: Tests-Test Ec: Rough handling shocks, primarily for equipment-type specimens (IDT)<\/p>\n
\nIn addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO\/lEC Guide 21-1.<\/p>\n","protected":false},"excerpt":{"rendered":"
Environmental testing – Part 2-31: Tests-Test Ec: Rough handling shocks, primarily for equipment-type specimens<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n JIS<\/b><\/a><\/td>\n 2013-03-21<\/td>\n 20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":650294,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[290,2655],"product_tag":[],"class_list":{"0":"post-650278","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-19-040","7":"product_cat-jis","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\/650278","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\/650294"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=650278"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=650278"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=650278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}