{"id":825,"date":"2023-12-18T14:35:43","date_gmt":"2023-12-18T06:35:43","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&p=825"},"modified":"2024-09-05T16:31:35","modified_gmt":"2024-09-05T08:31:35","slug":"how-to-choose-surge-protection-devices","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fr\/blog\/how-to-choose-surge-protection-devices\/","title":{"rendered":"Comment choisir les dispositifs de protection contre les surtensions ?"},"content":{"rendered":"Choisir des parasurtenseurs<\/strong>\r\n\r\nBritec\u2019s line of AC power surge protectors is designed to cover all possible configurations in low voltage installations. They are available in many versions, which differ in:\r\n\r\n\u2013 Type or test class (1, 2 or 3)\r\n\r\n\u2013 Operating voltage (Uc)\r\n\r\n\u2013 AC network configuration (Single\/three-Phase)\r\n\r\n\u2013 Discharge currents (Iimp, In, Imax, Uoc)\r\n\r\n\u2013 Protection level (Up)\r\n\r\n\u2013 Protection technology (varistors, spark gap, filter)\r\n\r\n\u2013 Features (differential mode, plug-in, remote signaling, compact).\r\n\r\nThe surge protection selection must be done following the local electrical code requirements (e.g.: minimum rating for In) and specific conditions (e.g.: high lightning density).\r\n\r\nChoisir le type de parasurtenseur<\/strong>\r\n\r\nLe type de parafoudre d\u00e9pend de son emplacement et des contraintes de l'installation \u00e0 prot\u00e9ger.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Configuration<\/strong><\/td>\r\nSPD<\/strong><\/td>\r\nEmplacement<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Installation \u00e9quip\u00e9e de LPS ou susceptible d'\u00eatre frapp\u00e9e par la foudre<\/td>\r\nType 1+2 \r\n\r\nType 1+2+3<\/td>\r\nOrigine de l'origine de l'installation (Panneau ou tableau principal)<\/td>\r\nBR-50GR \r\n\r\nBR-25GR\r\n\r\nBR-25M\r\n\r\nBR-12.5M<\/td>\r\n<\/tr>\r\n
Installation sans LPS<\/td>\r\nType 2 \r\n\r\nType 2+3<\/td>\r\ntableau principal<\/td>\r\nBR-40 \r\n\r\nBR-20<\/td>\r\n<\/tr>\r\n
Protection secondaire (SPD primaire en aval)<\/td>\r\nType 2 \r\n\r\n(or Type 3)<\/td>\r\n\u00e0 proximit\u00e9 des \u00e9quipements prot\u00e9g\u00e9s<\/td>\r\nBR-40DP \r\n\r\nBR-20DP<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoix des tensions de fonctionnement Uc et UT<\/strong>\r\n\r\nThe SPD Uc voltage (maximum continuous operating voltage) depends on:\r\n\r\n\u2013 Nominal voltage of the AC network (Uo)\r\n\r\n\u2013 Type of AC system (TN, TT, IT).\r\n\r\nThe level of resistance to temporary overvoltage (UT) is related to the Uc voltage. In addition, withstanding the \u201chigh voltage\u201d TOV (1200 Vac, 300A, 200ms) between Neutral and PE is needed in TT AC system.\r\n\r\nTension de fonctionnement Uc (Ligne\/Terre)<\/strong>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
R\u00e9seau CA<\/td>\r\n230\/400V<\/td>\r\n120\/208V<\/td>\r\n<\/tr>\r\n
Syst\u00e8me de climatisation<\/td>\r\nTT<\/td>\r\nTN<\/td>\r\nIL<\/td>\r\nTN<\/td>\r\n<\/tr>\r\n
Tension Uc mini<\/td>\r\n255V<\/td>\r\n255V<\/td>\r\n440V<\/td>\r\n135V<\/td>\r\n<\/tr>\r\n
Tension UT<\/td>\r\n335\/440 V<\/td>\r\n335\/440 V<\/td>\r\n\u2014<\/td>\r\n230\/175 V<\/td>\r\n<\/tr>\r\n
TOV N\/PE<\/td>\r\n1200 V<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoisir Iimp<\/strong>\r\n\r\nLe courant impulsionnel Iimp est d\u00e9fini pour le SPD de type 1. La valeur nominale minimale pour Iimp est de 12,5 kA par p\u00f4le, conform\u00e9ment \u00e0 la norme CEI 60364-5-534. Ce niveau est adapt\u00e9 au ph\u00e9nom\u00e8ne r\u00e9el. Cette valeur peut toutefois \u00eatre augment\u00e9e en fonction du risque (calcul selon EN 62305-1). BRITEC propose, dans sa gamme SPD Type 1, 3 niveaux de courant Iimp par p\u00f4le : 12,5kA, 25kA et 50 kA.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Configuration<\/strong><\/td>\r\nIimp\/p\u00f4le<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Risque maximal<\/td>\r\n50ka<\/td>\r\nBR-50GR<\/td>\r\n<\/tr>\r\n
Densit\u00e9 de foudre tr\u00e8s \u00e9lev\u00e9e Mauvaise mise \u00e0 la terre<\/td>\r\n25 kA<\/td>\r\nBR-25GR \r\n\r\nBR-25M<\/td>\r\n<\/tr>\r\n
Densit\u00e9 de foudre \u00e9lev\u00e9e, moyenne ou faible<\/td>\r\n12,5 kA<\/td>\r\nBR-12,5M<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoisir En courant<\/strong>\r\n\r\nThe relevant nominal discharge current In for the SPD is in relation with the lightning risk in the installation area.\r\n\r\nThe minimum rating of In for a SPD connected at the installation entrance is 5 kA (8\/20 \u03bcs waveform), required by standard.\r\n\r\nNevertheless higher ratings are advised in case of high lightning density.\r\n\r\nMoreover higher values of In current will increase the SPD lifetime.\r\n\r\nImax (max. discharge current) rating is linked to In.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Conditions<\/strong><\/td>\r\nDans<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Tr\u00e8s haute densit\u00e9 de foudre<\/td>\r\n> 20 kA<\/td>\r\nBR-60 \r\n\r\nBR-70<\/td>\r\n<\/tr>\r\n
Densit\u00e9 de foudre \u00e9lev\u00e9e ou moyenne<\/td>\r\n10-20 kA<\/td>\r\nBR-40 \r\n\r\nBR-20<\/td>\r\n<\/tr>\r\n
Faible densit\u00e9 de foudre ou SPD secondaire<\/td>\r\n5 kA<\/td>\r\nBR-15DP<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoisir le niveau de protection Up<\/strong>\r\n\r\nThe user must select a surge protector with a protection level Up adapted to the withstand level of terminal equipment. In every case, the lower the protection level Up, the better the protection.\r\n\r\nIEC 60364 standard calls for the minimum protection level of 2.5 kV for a SPD connected at the entrance of a 230\/400 V network: this level is in compliance with the withstand of robust devices (electromechanical type).\r\n\r\nElectronic-based terminals have lower impulse withstand and require a better protection: so, surge protectors with 1.5 kV protection are necessary to provide efficient protection.\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Conditions<\/strong><\/td>\r\nRecommand\u00e9 vers le haut<\/strong><\/td>\r\n<\/tr>\r\n
230\/400 V \r\n\r\nAC network<\/td>\r\n120\/208 V \r\n\r\nAC network<\/td>\r\n<\/tr>\r\n
SPD \u00e0 l'entr\u00e9e de l'installation<\/td>\r\n2,5 kV maximum.<\/td>\r\n1,5 kV maximum.<\/td>\r\n<\/tr>\r\n
\u00c9quipements de protection \u00e9lectrom\u00e9caniques<\/td>\r\n2,5 kV<\/td>\r\n1,5 kV<\/td>\r\n<\/tr>\r\n
\u00c9quipement prot\u00e9g\u00e9 \u00e9lectroniquement<\/td>\r\n1,5 kV<\/td>\r\n0,8 kV<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n ","protected":false},"featured_media":826,"parent":0,"menu_order":164,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-825","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"Britec\u2019s line of AC power surge protectors is designed to cover all possible configurations in low voltage installations.","txt":"Choosing Surge Protectors<\/strong>\r\n\r\nBritec\u2019s line of AC power surge protectors is designed to cover all possible configurations in low voltage installations. They are available in many versions, which differ in:\r\n\r\n\u2013 Type or test class (1, 2 or 3)\r\n\r\n\u2013 Operating voltage (Uc)\r\n\r\n\u2013 AC network configuration (Single\/three-Phase)\r\n\r\n\u2013 Discharge currents (Iimp, In, Imax, Uoc)\r\n\r\n\u2013 Protection level (Up)\r\n\r\n\u2013 Protection technology (varistors, spark gap, filter)\r\n\r\n\u2013 Features (differential mode, plug-in, remote signaling, compact).\r\n\r\nThe surge protection selection must be done following the local electrical code requirements (e.g.: minimum rating for In) and specific conditions (e.g.: high lightning density).\r\n\r\nChoosing the Type of surge protectors<\/strong>\r\n\r\nThe type of surge protector is based on its location and the constraints of the installation to be protected.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Configuration<\/strong><\/td>\r\nSPD<\/strong><\/td>\r\nLocation<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Installation equipped with LPS or could be hit by lightning<\/td>\r\nType 1+2 \r\n\r\nType 1+2+3<\/td>\r\nOrigin of the installation origin (Panel or main switchboard)<\/td>\r\nBR-50GR \r\n\r\nBR-25GR\r\n\r\nBR-25M\r\n\r\nBR-12.5M<\/td>\r\n<\/tr>\r\n
Installation without LPS<\/td>\r\nType 2 \r\n\r\nType 2+3<\/td>\r\nmain switchboard<\/td>\r\nBR-40 \r\n\r\nBR-20<\/td>\r\n<\/tr>\r\n
Secondary protection (downstream primary SPD)<\/td>\r\nType 2 \r\n\r\n(or Type 3)<\/td>\r\nclose to protected equipment<\/td>\r\nBR-40DP \r\n\r\nBR-20DP<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoosing the operating voltages Uc and UT<\/strong>\r\n\r\nThe SPD Uc voltage (maximum continuous operating voltage) depends on:\r\n\r\n\u2013 Nominal voltage of the AC network (Uo)\r\n\r\n\u2013 Type of AC system (TN, TT, IT).\r\n\r\nThe level of resistance to temporary overvoltage (UT) is related to the Uc voltage. In addition, withstanding the \u201chigh voltage\u201d TOV (1200 Vac, 300A, 200ms) between Neutral and PE is needed in TT AC system.\r\n\r\nOperating voltage Uc (Line\/Ground)<\/strong>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
AC Network<\/td>\r\n230\/400V<\/td>\r\n120\/208V<\/td>\r\n<\/tr>\r\n
AC system<\/td>\r\nTT<\/td>\r\nTN<\/td>\r\nIT<\/td>\r\nTN<\/td>\r\n<\/tr>\r\n
Voltage Uc mini<\/td>\r\n255V<\/td>\r\n255V<\/td>\r\n440V<\/td>\r\n135V<\/td>\r\n<\/tr>\r\n
Voltage UT<\/td>\r\n335\/440 V<\/td>\r\n335\/440 V<\/td>\r\n\u2014<\/td>\r\n230\/175 V<\/td>\r\n<\/tr>\r\n
TOV N\/PE<\/td>\r\n1200 V<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoosing Iimp<\/strong>\r\n\r\nThe impulse current Iimp is defined for Type 1 SPD. The minimum rating for Iimp is 12.5 kA by pole, following IEC 60364-5-534. This level is adapted to the real phenomenon. This value can, however, be increased according to the risk (calculation according to EN 62305-1). BRITEC proposes, in its Type 1 SPD range, 3 levels of Iimp current by pole: 12.5kA, 25kA and 50 kA.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Configuration<\/strong><\/td>\r\nIimp\/pole<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Maximum risk<\/td>\r\n50kA<\/td>\r\nBR-50GR<\/td>\r\n<\/tr>\r\n
Very high lightning density Bad earthing<\/td>\r\n25kA<\/td>\r\nBR-25GR \r\n\r\nBR-25M<\/td>\r\n<\/tr>\r\n
High, medium or low lightning density<\/td>\r\n12.5kA<\/td>\r\nBR-12.5M<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoosing In current<\/strong>\r\n\r\nThe relevant nominal discharge current In for the SPD is in relation with the lightning risk in the installation area.\r\n\r\nThe minimum rating of In for a SPD connected at the installation entrance is 5 kA (8\/20 \u03bcs waveform), required by standard.\r\n\r\nNevertheless higher ratings are advised in case of high lightning density.\r\n\r\nMoreover higher values of In current will increase the SPD lifetime.\r\n\r\nImax (max. discharge current) rating is linked to In.\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Conditions<\/strong><\/td>\r\nIn<\/strong><\/td>\r\nBRITEC<\/strong><\/td>\r\n<\/tr>\r\n
Very high lightning density<\/td>\r\n> 20 kA<\/td>\r\nBR-60 \r\n\r\nBR-70<\/td>\r\n<\/tr>\r\n
High or medium lightning density<\/td>\r\n10-20 kA<\/td>\r\nBR-40 \r\n\r\nBR-20<\/td>\r\n<\/tr>\r\n
Low lightning density or secondary SPD<\/td>\r\n5 kA<\/td>\r\nBR-15DP<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nChoosing the protection level Up<\/strong>\r\n\r\nThe user must select a surge protector with a protection level Up adapted to the withstand level of terminal equipment. In every case, the lower the protection level Up, the better the protection.\r\n\r\nIEC 60364 standard calls for the minimum protection level of 2.5 kV for a SPD connected at the entrance of a 230\/400 V network: this level is in compliance with the withstand of robust devices (electromechanical type).\r\n\r\nElectronic-based terminals have lower impulse withstand and require a better protection: so, surge protectors with 1.5 kV protection are necessary to provide efficient protection.\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Conditions<\/strong><\/td>\r\nRecommended Up<\/strong><\/td>\r\n<\/tr>\r\n
230\/400 V \r\n\r\nAC network<\/td>\r\n120\/208 V \r\n\r\nAC network<\/td>\r\n<\/tr>\r\n
SPD at the installation entrance<\/td>\r\n2.5 kV max.<\/td>\r\n1.5 kV max.<\/td>\r\n<\/tr>\r\n
Electromechanical protected equipment<\/td>\r\n2.5 kV<\/td>\r\n1.5 kV<\/td>\r\n<\/tr>\r\n
Electronic-based protected equipment<\/td>\r\n1.5 kV<\/td>\r\n0.8 kV<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n "},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog\/825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media\/826"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media?parent=825"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog_category?post=825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}