{"id":48382,"date":"2013-01-29T00:00:00","date_gmt":"2013-01-28T22:00:00","guid":{"rendered":"https:\/\/at3w.com\/blog\/product-selection-guide-for-surge-protectors\/"},"modified":"2013-01-29T00:00:00","modified_gmt":"2013-01-28T22:00:00","slug":"product-selection-guide-for-surge-protectors","status":"publish","type":"post","link":"https:\/\/at3w.com\/en\/blog\/product-selection-guide-for-surge-protectors\/","title":{"rendered":"Product selection guide for surge protectors"},"content":{"rendered":"

\n\tHow to choose in 4 easy steps the proper Surge Protective Devices (SPD)<\/a><\/strong> to protect your installation according to IEC\/EN 61643 standard.<\/p>\n

\n\t1) Note the characteristics of the power supply in order to find out the maximum working DC and AC voltage for each line.<\/strong> Select the SPDs providing: Uc > maximum working voltage of the line.<\/p>\n

\n\t2) Select the SPD type and its maximum current depending on the effects it should withstand:<\/strong><\/p>\n

\n\t <\/span><\/div>\n

\n\t <\/p>\n\n\n\n\n\n\n
\n

\n\t\t\t\t\tCurrent that can reach the SPD<\/strong><\/p>\n<\/td>\n

\n

\n\t\t\t\t\tType of SPD<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tDirect lightning current:<\/p>\n<\/td>\n

\n

\n\t\t\t\t\tType 1<\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tLightning secondary effects:<\/p>\n<\/td>\n

\n

\n\t\t\t\t\tType 2<\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tAttenuated surges:<\/p>\n<\/td>\n

\n

\n\t\t\t\t\tType 3<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n\t <\/p>\n

\n\t <\/span><\/div>\n

\n\t3) Select the SPD residual voltage according to the equipment to be protected.<\/strong> For example, for power supply lines it is recommended:<\/p>\n

\n\t <\/span><\/div>\n

\n\t <\/p>\n\n\n\n\n\n\n
\n

\n\t\t\t\t\tEquipment to be protected<\/strong><\/p>\n<\/td>\n

\n

\n\t\t\t\t\tResidual voltage (1.2\/50μs)<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tVery robust equipment (large motors, air conditioning, …):<\/p>\n<\/td>\n

\n

\n\t\t\t\t\t< 4kV<\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tNon-sensitive or internally protected equipment:<\/p>\n<\/td>\n

\n

\n\t\t\t\t\t< 1,5kV<\/p>\n<\/td>\n<\/tr>\n

\n

\n\t\t\t\t\tVery sensitive or non-protected against electromagnetic disturbances equipment:<\/p>\n<\/td>\n

\n

\n\t\t\t\t\t< 1kV<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n\t <\/p>\n

\n\t <\/span><\/div>\n

\n\t4) Select the model of SPD according to the aforementioned parameters and to the type of installation<\/strong>, as follows:<\/p>\n","protected":false},"excerpt":{"rendered":"

\n\tHow to choose in 4 easy steps the proper Surge Protective Devices (SPD)<\/a><\/strong> to protect your installation according to IEC\/EN 61643 standard.<\/p>\n","protected":false},"author":11,"featured_media":48383,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[5549,5574],"tags":[],"class_list":["post-48382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-smart-lightning-en","category-surge-protection"],"yoast_head":"\nProduct selection guide for surge protectors<\/title>\n<meta name=\"description\" content=\"How to choose in 4 easy steps the proper Surge Protective Devices (SPD) to protect your installation according to IEC\/EN 61643 standard.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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