{"id":2229,"date":"2025-10-30T09:33:07","date_gmt":"2025-10-30T01:33:07","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&p=2229"},"modified":"2025-11-03T16:20:49","modified_gmt":"2025-11-03T08:20:49","slug":"surge-protection-device-vs-surge-protector-vs-surge-arrester","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/da\/blog\/surge-protection-device-vs-surge-protector-vs-surge-arrester\/","title":{"rendered":"Oversp\u00e6ndingsbeskyttelsesanordning VS Oversp\u00e6ndingsbeskytter VS Oversp\u00e6ndingsafleder"},"content":{"rendered":"
Terms such as \"oversp\u00e6ndingsbeskyttelsesanordning (SPD)<\/a>,\" \"surge protector,\" and \"surge arrester\" are often used interchangeably in the market, causing confusion for users when selecting a device.<\/div>\r\n
This article will delve into the differences and connections between these three terms and provide a detailed selection guide to help you choose the most suitable \"surge protector\" for your application scenario.<\/div>\r\n \r\n

Oversp\u00e6ndingsbeskyttelsesanordning vs. Oversp\u00e6ndingsbeskytter vs. Oversp\u00e6ndingsafbryder<\/h2>\r\n
Selvom alle tre udtryk sigter mod at give oversp\u00e6ndingsbeskyttelse, har de subtile, men afg\u00f8rende forskelle i tekniske definitioner, anvendelsesscenarier og standardspecifikationer.<\/div>\r\n \r\n

Begreb<\/h3>\r\n

Oversp\u00e6ndingsbeskyttelsesenhed (SPD)<\/strong><\/h4>\r\n
Dette er et standard- og professionelt udtryk, der stammer fra International Electrotechnical Commission (IEC) standarder (s\u00e5som IEC 61643-11). Det er en komplet kategori af produkter, der overholder specifikke standarder, og henviser til elektriske enheder, der bruges til at begr\u00e6nse transiente oversp\u00e6ndinger og afladningsstartstr\u00f8mme, som skal indeholde mindst \u00e9t \u200b\u200bikke-line\u00e6rt element.<\/div>\r\n
\"BR-40VG<\/a><\/div>\r\n
<\/div>\r\n
Karakteristika: SPD er et ingeni\u00f8rudtryk, der understreger dets overholdelse af internationale standarder og har klart definerede ydeevneparametre (s\u00e5som Up, In, Iimp, osv.). Det er et standardudtryk, der bruges i elektroteknisk design.<\/div>\r\n \r\n

Oversp\u00e6ndingsbeskytter<\/strong><\/h4>\r\n
Dette er et mere mundret og kommercielt udtryk, is\u00e6r udbredt p\u00e5 det nordamerikanske marked. Det refererer typisk til beskyttelsesprodukter p\u00e5 slutenhedsniveau, oftest str\u00f8mskinne med multi-stikkontakter.<\/div>\r\n
Karakteristika: Det tilh\u00f8rer SPD-kategorien (Supply, Protection, and Distribution), men refererer normalt til produkter med lavere beskyttelsesniveauer (s\u00e5som Type 3). Dette udtryk er mere fokuseret p\u00e5 forbrugermarkedet og massekommunikation.<\/div>\r\n \r\n

Oversp\u00e6ndingsafbryder<\/strong><\/h4>\r\n
Dette er et traditionelt og specifikt udtryk, der oprindeligt prim\u00e6rt blev brugt i krafttransmissions- og distributionssystemer, s\u00e5som beskyttelse af transformerstationer og luftledninger mod direkte lynnedslag eller inducerede lynoversp\u00e6ndinger. I lavsp\u00e6ndingsfeltet refererer det nogle gange specifikt til Type 1 SPD'er, som er beskyttelsesanordninger, der er i stand til at modst\u00e5 en del af direkte lynstr\u00f8m med en st\u00e6rk afladningsevne.<\/div>\r\n
Funktioner: Fremh\u00e6ver dens kraftfulde afladningsevne til at klare de mest alvorlige lynstr\u00f8msstigninger. I moderne bygningsoversp\u00e6ndingsbeskyttelsessystemer betragtes det som en SPD-type p\u00e5 h\u00f8jt niveau.<\/div>\r\n \r\n
Sammenfatning af relationer:<\/strong> Konceptuelt er SPD en generel betegnelse, der omfatter alle standard-kompatible oversp\u00e6ndingsbeskyttelsesprodukter. Surge Protector er typisk en delm\u00e6ngde af SPD'er, der bruges p\u00e5 forbrugermarkedet, mens Surge Arrester kan betragtes som en specifik type SPD til h\u00f8jsp\u00e6ndings- eller h\u00f8jintensitetsapplikationer.<\/div>\r\n \r\n

kinesisk navn<\/h3>\r\n
Oversp\u00e6ndingsbeskyttelsesenhed (SPD): Oversp\u00e6ndingsbeskytter (det mest standard kinesiske ingeni\u00f8rudtryk)<\/div>\r\n
Oversp\u00e6ndingsbeskytter: Oversp\u00e6ndingsbeskytter \/ Oversp\u00e6ndingsbeskyttelsesstik (mere mundret og kommercielt)<\/div>\r\n
Oversp\u00e6ndingsafleder: Oversp\u00e6ndingsudlader \/ Lynafleder (traditionelt elektroteknisk udtryk)<\/div>\r\n \r\n

Installationssted<\/h3>\r\n
SPD (Type 1\/2): Installed at critical nodes in the power distribution system, such as the building's main distribution cabinet or floor distribution boxes.<\/div>\r\n
Oversp\u00e6ndingsbeskytter (Type 3): Installeret p\u00e5 forsiden af \u200b\u200benheden, sat direkte i en stikkontakt, hvilket giver fin beskyttelse af terminalenheder (s\u00e5som computere og fjernsyn).<\/div>\r\n
Oversp\u00e6ndingsafleder (Type 1): Installeret ved serviceindgangspunktet, dvs. hovedfordelingsskabet, som den f\u00f8rste forsvarslinje.<\/div>\r\n \r\n

Beskyttelsesniveau<\/h3>\r\n
SPD: D\u00e6kker alle niveauer (Type 1, 2, 3) og giver omfattende, niveaudelt beskyttelse.<\/div>\r\n
Oversp\u00e6ndingsbeskytter: Repr\u00e6senterer typisk Type 3, der giver ultimativ slank beskyttelse.<\/div>\r\n
Oversp\u00e6ndingsafleder: Repr\u00e6senterer typisk Type 1, der giver det h\u00f8jeste niveau af grov beskyttelse.<\/div>\r\n \r\n

Oversp\u00e6ndingsreaktion<\/h3>\r\n
SPD (Type 1\/2): Hurtig responshastighed (nanosekundniveau), ved hj\u00e6lp af teknologier som varistorer (MOV) eller gasudladningsr\u00f8r (GDT).<\/div>\r\n
Oversp\u00e6ndingsbeskytter (Type 3): Ogs\u00e5 hurtig reaktionshastighed, men med mindre str\u00f8mkapacitet.<\/div>\r\n
Oversp\u00e6ndingsafleder (Type 1): Kan modst\u00e5 enorme lynstr\u00f8msstigninger, typisk ved brug af gnistgab-teknologi.<\/div>\r\n \r\n

Udledningskapacitet<\/h3>\r\n
Oversp\u00e6ndingsafleder (Type 1 SPD): H\u00f8jest (op til 100kA eller mere, 10\/350\u00b5s b\u00f8lgeform).<\/div>\r\n
SPD (Type 2): Medium (typically 20kA - 80kA, 8\/20\u00b5s waveform).<\/div>\r\n
Oversp\u00e6ndingsbeskytter (Type 3): Laveste (typisk under 20kA, 8\/20\u00b5s b\u00f8lgeform).<\/div>\r\n \r\n

Kerneforbindelser<\/h3>\r\n
Type 1 SPD \/ Arrester: Bruger typisk et gnistgab, der tilbyder h\u00f8j str\u00f8mb\u00e6rende kapacitet og lysbueslukningsevne.<\/div>\r\n
Type 2 SPD: Bruger typisk en varistor (MOV) eller en kombination af MOV og GDT.<\/div>\r\n
Type 3 SPD \/ Protector: Bruger typisk en MOV eller lavinediode.<\/div>\r\n \r\n

Anvendelsesomr\u00e5der<\/h3>\r\n
Oversp\u00e6ndingsafleder \/ Type 1 SPD: Str\u00f8mdistributionssystem ved en bygnings hovedstr\u00f8mforsyningsledning og i omr\u00e5der med h\u00f8j risiko for lynnedslag.<\/div>\r\n
SPD (Type 2): Fordelingsbokse, industrielle styreskabe og kommunikationsudstyrsrum i bygninger.<\/div>\r\n
Oversp\u00e6ndingsbeskytter (type 3): F\u00f8lsomme elektroniske enheder i hjem og kontorer, s\u00e5som computere, stereoanl\u00e6g, smart-tv og routere.<\/div>\r\n \r\n

Dybdeg\u00e5ende analyse: Beskyttelsesniveauer (type 1, 2 og 3 spds)<\/h2>\r\n
A robust surge protection system should employ a tiered (or \"cooperative\") strategy.<\/div>\r\n
\"BR-30FU<\/a><\/div>\r\n
<\/div>\r\n
Type 1 SPD (grov beskyttelse):<\/strong><\/div>\r\n
Form\u00e5l: At aflade store direkte lynnedslag eller inducerede lynstr\u00f8mme (10\/350\u00b5s b\u00f8lgeform).<\/div>\r\n
Installationssted: Hovedfordelingsskab.<\/div>\r\n
N\u00f8gleparametre: Iimp (Impulsstr\u00f8m).<\/div>\r\n
Type 2 SPD (mellembeskyttelse):<\/strong><\/div>\r\n
Form\u00e5l: At begr\u00e6nse resterende oversp\u00e6nding efter Type 1 SPD yderligere og h\u00e5ndtere oversp\u00e6ndinger for\u00e5rsaget af koblingsoperationer mv.<\/div>\r\n
Installationssted: Fordelingsboks.<\/div>\r\n
N\u00f8gleparametre: Ind (nominel afgangsstr\u00f8m), Op (sp\u00e6ndingsbeskyttelsesniveau).<\/div>\r\n
Type 3 SPD (finbeskyttelse):<\/strong><\/div>\r\n
Form\u00e5l: At yde endelig, laveste restsp\u00e6ndingsbeskyttelse for det mest f\u00f8lsomme elektroniske udstyr.<\/div>\r\n
Installationssted: Forenden af \u200b\u200budstyret, s\u00e5 t\u00e6t som muligt p\u00e5 det beskyttede udstyr (typisk <10 meter).<\/div>\r\n
N\u00f8gleparametre: Op (sp\u00e6ndingsbeskyttelsesniveau), Uoc (\u00e5ben kredsl\u00f8bssp\u00e6nding).<\/div>\r\n \r\n

S\u00e5dan v\u00e6lger du<\/h2>\r\n

Scenariespecifikke anbefalinger<\/h3>\r\n
Privatbrugere:<\/strong><\/div>\r\n
Grundl\u00e6ggende: Installer en Type 2 SPD i hovedafbryderboksen.<\/div>\r\n
Standard: Installer en Type 2 SPD i hovedafbryderboksen og udstyr v\u00e6rdifulde apparater (s\u00e5som computere og fjernsyn) med Type 3 Oversp\u00e6ndingsbeskytter str\u00f8mskinne.<\/div>\r\n
Avanceret (villaer, h\u00f8jhastighedslynomr\u00e5der): Installer en Type 1 SPD ved hovedindgangen, installer Type 2 SPD'er i fordelingsboksene p\u00e5 hver etage, og brug Type 3 str\u00f8mskinne til terminaler.<\/div>\r\n
Kommercielle bygninger\/datacentre:<\/strong><\/div>\r\n
Installer en Type 1 SPD i hovedfordelingsrummet.<\/div>\r\n
Installer Type 2 SPD'er i fordelingsbokse og serverrumsskabe p\u00e5 hver etage.<\/div>\r\n
Installer dedikerede Type 3 SPD'er eller rackmonterede SPD'er foran servere, netv\u00e6rksswitches og lagerenheder.<\/div>\r\n
Industrielle milj\u00f8er:<\/strong><\/div>\r\n
Installer en Type 1\/2 SPD i det indg\u00e5ende hovedskab.<\/div>\r\n
Installer Type 2 SPD'er foran hvert styreskab, PLC-skab og frekvensomformer.<\/div>\r\n \r\n

N\u00f8gleydelsesparametre<\/h3>\r\n\"BR-30FU<\/a>\r\n
N\u00e5r du v\u00e6lger en SPD, skal du v\u00e6re opm\u00e6rksom p\u00e5 f\u00f8lgende n\u00f8gleparametre:<\/div>\r\n
Uc (maksimal kontinuerlig driftssp\u00e6nding)<\/strong><\/div>\r\n
SPD'en skal v\u00e6re i stand til at modst\u00e5 den maksimale AC- eller DC-sp\u00e6nding i l\u00e6ngere perioder uden at starte. Denne sp\u00e6nding skal v\u00e6re h\u00f8jere end den nominelle sp\u00e6nding p\u00e5 det lokale elnet. For eksempel i et 230V-omr\u00e5de skal Uc v\u00e6re mindst 275V eller h\u00f8jere.<\/div>\r\n \r\n
Iimp (Impact Current)<\/strong><\/div>\r\n
For Type 1 SPD'er angiver dette den maksimale peak lynstr\u00f8m, den kan modst\u00e5 med en b\u00f8lgeform p\u00e5 10\/350 \u00b5s. Jo h\u00f8jere v\u00e6rdi, jo st\u00e6rkere modstand mod direkte lynnedslag.<\/div>\r\n \r\n
Uoc (Open Circuit Voltage)<\/strong><\/div>\r\n
Prim\u00e6rt brugt til at teste og definere ydeevnen af \u200b\u200bType 3 SPD'er, det repr\u00e6senterer b\u00f8lgeformen af \u200b\u200btestsp\u00e6ndingen p\u00e5f\u00f8rt SPD'en.<\/div>\r\n \r\n
Op (sp\u00e6ndingsbeskyttelsesniveau)<\/strong><\/div>\r\n
Dette er en af \u200b\u200bde vigtigste parametre, der repr\u00e6senterer restsp\u00e6ndingen over SPD'en, efter at den er udl\u00f8st. Op-v\u00e6rdien skal v\u00e6re lavere end det beskyttede udstyrs modstandssp\u00e6ndingsniveau. Jo lavere v\u00e6rdi, jo bedre beskyttelseseffekt.<\/div>\r\n \r\n
Ind (nominel afgangsstr\u00f8m)<\/strong><\/div>\r\n
For Type 2 SPD'er indikerer dette, at den kan modst\u00e5 15 spidsstr\u00f8mst\u00f8d fra en 8\/20\u00b5s b\u00f8lgeform. Det er en n\u00f8gleindikator for udledningsevnen af \u200b\u200ben Type 2 SPD.<\/div>\r\n \r\n

Konklusion<\/h2>\r\n
Surge Protection Device (SPD) er et omfattende teknisk udtryk, mens Surge Protector og Surge Arrester er specifikke udtryk for det i forskellige sammenh\u00e6nge og anvendelsesniveauer.<\/div>","protected":false},"featured_media":1743,"parent":0,"menu_order":108,"template":"","meta":{"_acf_changed":false},"blog_category":[9],"class_list":["post-2229","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":{"des":"Surge Protection Device (SPD) is a comprehensive technical term, while Surge Protector and Surge Arrester are specific expressions of it in different contexts and application levels.","txt":"
Terms such as \"surge protection device (SPD)<\/a>,\" \"surge protector,\" and \"surge arrester\" are often used interchangeably in the market, causing confusion for users when selecting a device.<\/div>\r\n
This article will delve into the differences and connections between these three terms and provide a detailed selection guide to help you choose the most suitable \"surge protector\" for your application scenario.<\/div>\r\n \r\n

Surge Protection Device Vs. Surge Protector Vs. Surge Arrester<\/h2>\r\n
Although all three terms aim to provide surge protection, they have subtle but crucial differences in technical definitions, application scenarios, and standard specifications.<\/div>\r\n \r\n

Concept<\/h3>\r\n

Surge Protection Device (SPD)<\/strong><\/h4>\r\n
This is a standard and professional term, originating from International Electrotechnical Commission (IEC) standards (such as IEC 61643-11). It is a complete category of products conforming to specific standards, referring to electrical devices used to limit transient overvoltages and discharge inrush currents, which must contain at least one nonlinear element.<\/div>\r\n
\"BR-40VG<\/a><\/div>\r\n
<\/div>\r\n
Characteristics: SPD is an engineering term emphasizing its compliance with international standards and having clearly defined performance parameters (such as Up, In, Iimp, etc.). It is a standard term used in electrical engineering design.<\/div>\r\n \r\n

Surge Protector<\/strong><\/h4>\r\n
This is a more colloquial and commercial term, especially widely used in the North American market. It typically refers to end-device level protection products, most commonly power strips with multi-outlet sockets.<\/div>\r\n
Characteristics: It belongs to the SPD (Supply, Protection, and Distribution) category, but usually refers to products with lower protection levels (such as Type 3). This term is more focused on the consumer market and mass communication.<\/div>\r\n \r\n

Surge Arrester<\/strong><\/h4>\r\n
This is a traditional and specific term, originally used primarily in power transmission and distribution systems, such as protecting substations and overhead lines from direct lightning strikes or induced lightning overvoltages. In the low-voltage field, it sometimes specifically refers to Type 1 SPDs, which are protective devices capable of withstanding a portion of direct lightning current with a strong discharge capability.<\/div>\r\n
Features: Emphasizes its powerful discharge capability to cope with the most severe lightning current surges. In modern building surge protection systems, it is considered a high-level type of SPD.<\/div>\r\n \r\n
Summary of relationships:<\/strong> Conceptually, SPD is a general term encompassing all standard-compliant surge protection products. Surge Protector is typically a subset of SPDs used in the consumer market, while Surge Arrester can be considered a specific type of SPD for high-voltage or high-intensity applications.<\/div>\r\n \r\n

Chinese Name<\/h3>\r\n
Surge Protection Device (SPD): Surge protector (the most standard Chinese engineering term)<\/div>\r\n
Surge Protector: Surge protector \/ Surge protection socket (more colloquial and commercial)<\/div>\r\n
Surge Arrester: Surge discharger \/ Lightning arrester (traditional electrical engineering term)<\/div>\r\n \r\n

Installation Location<\/h3>\r\n
SPD (Type 1\/2): Installed at critical nodes in the power distribution system, such as the building's main distribution cabinet or floor distribution boxes.<\/div>\r\n
Surge Protector (Type 3): Installed at the front end of the device, directly plugged into a wall socket, providing fine protection for terminal devices (such as computers and televisions).<\/div>\r\n
Surge Arrester (Type 1): Installed at the service entry point, i.e., the main distribution cabinet, as the first line of defense.<\/div>\r\n \r\n

Protection Level<\/h3>\r\n
SPD: Covers all levels (Type 1, 2, 3), providing comprehensive, tiered protection.<\/div>\r\n
Surge Protector: Typically represents Type 3, providing ultimate lean protection.<\/div>\r\n
Surge Arrester: Typically represents Type 1, providing the highest level of coarse protection.<\/div>\r\n \r\n

Surge Response<\/h3>\r\n
SPD (Type 1\/2): Fast response speed (nanosecond level), using technologies such as varistors (MOV) or gas discharge tubes (GDT).<\/div>\r\n
Surge Protector (Type 3): Also fast response speed, but with smaller current capacity.<\/div>\r\n
Surge Arrester (Type 1): Can withstand huge lightning current surges, typically using spark gap technology.<\/div>\r\n \r\n

Discharge Capacity<\/h3>\r\n
Surge Arrester (Type 1 SPD): Highest (up to 100kA or more, 10\/350\u00b5s waveform).<\/div>\r\n
SPD (Type 2): Medium (typically 20kA - 80kA, 8\/20\u00b5s waveform).<\/div>\r\n
Surge Protector (Type 3): Lowest (typically below 20kA, 8\/20\u00b5s waveform).<\/div>\r\n \r\n

Core Connections<\/h3>\r\n
Type 1 SPD \/ Arrester: Typically uses a spark gap, offering high current carrying capacity and arc extinguishing capability.<\/div>\r\n
Type 2 SPD: Typically uses a varistor (MOV), or a combination of MOV and GDT.<\/div>\r\n
Type 3 SPD \/ Protector: Typically uses an MOV or avalanche diode.<\/div>\r\n \r\n

Application Areas<\/h3>\r\n
Surge Arrester \/ Type 1 SPD: Power distribution system at the main power supply line of a building and in high-risk lightning areas.<\/div>\r\n
SPD (Type 2): Distribution boxes, industrial control cabinets, and communication equipment rooms within buildings.<\/div>\r\n
Surge Protector (Type 3): Sensitive electronic devices in homes and offices, such as computers, stereos, smart TVs, and routers.<\/div>\r\n \r\n

In-Depth Analysis: Protection Levels (Type 1, 2, And 3 Spds)<\/h2>\r\n
A robust surge protection system should employ a tiered (or \"cooperative\") strategy.<\/div>\r\n
\"BR-30FU<\/a><\/div>\r\n
<\/div>\r\n
Type 1 SPD (Coarse Protection):<\/strong><\/div>\r\n
Objective: To discharge large direct lightning strikes or induced lightning currents (10\/350\u00b5s waveform).<\/div>\r\n
Installation Location: Main distribution cabinet.<\/div>\r\n
Key Parameters: Iimp (Impulse Current).<\/div>\r\n
Type 2 SPD (Intermediate Protection):<\/strong><\/div>\r\n
Objective: To further limit residual overvoltage after Type 1 SPD and handle surges caused by switching operations, etc.<\/div>\r\n
Installation Location: Distribution box.<\/div>\r\n
Key Parameters: In (Rated Discharge Current), Up (Voltage Protection Level).<\/div>\r\n
Type 3 SPD (Fine Protection):<\/strong><\/div>\r\n
Objective: To provide final, lowest residual voltage protection for the most sensitive electronic equipment.<\/div>\r\n
Installation Location: Front end of the equipment, as close as possible to the protected equipment (typically <10 meters).<\/div>\r\n
Key Parameters: Up (Voltage Protection Level), Uoc (Open Circuit Voltage).<\/div>\r\n \r\n

How To Choose<\/h2>\r\n

Scenario-Specific Recommendations<\/h3>\r\n
Residential Users:<\/strong><\/div>\r\n
Basic: Install one Type 2 SPD in the main switch box.<\/div>\r\n
Standard: Install a Type 2 SPD in the main switch box and equip valuable appliances (such as computers and televisions) with Type 3 Surge Protector power strips.<\/div>\r\n
Advanced (Villas, High-Speed \u200b\u200bLightning Areas): Install a Type 1 SPD at the main incoming line, install Type 2 SPDs in the distribution boxes on each floor, and use Type 3 power strips for terminals.<\/div>\r\n
Commercial Buildings\/Data Centers:<\/strong><\/div>\r\n
Install a Type 1 SPD in the main distribution room.<\/div>\r\n
Install Type 2 SPDs in the distribution boxes and server room cabinets on each floor.<\/div>\r\n
Install dedicated Type 3 SPDs or rack-mounted SPDs in front of servers, network switches, and storage devices.<\/div>\r\n
Industrial Environments:<\/strong><\/div>\r\n
Install a Type 1\/2 SPD in the main incoming line cabinet.<\/div>\r\n
Install Type 2 SPDs in front of each control cabinet, PLC cabinet, and frequency converter.<\/div>\r\n \r\n

Key Performance Parameters<\/h3>\r\n\"BR-30FU<\/a>\r\n
When selecting an SPD, be sure to pay attention to the following key parameters:<\/div>\r\n
Uc (Maximum Continuous Operating Voltage)<\/strong><\/div>\r\n
The SPD must be able to withstand the maximum AC or DC voltage for extended periods without starting. This voltage must be higher than the nominal voltage of the local power grid. For example, in a 230V area, Uc should be at least 275V or higher.<\/div>\r\n \r\n
Iimp (Impact Current)<\/strong><\/div>\r\n
For Type 1 SPDs, this indicates the maximum peak lightning current it can withstand with a 10\/350\u00b5s waveform. The higher the value, the stronger its resistance to direct lightning strikes.<\/div>\r\n \r\n
Uoc (Open Circuit Voltage)<\/strong><\/div>\r\n
Primarily used for testing and defining the performance of Type 3 SPDs, it represents the waveform of the test voltage applied to the SPD.<\/div>\r\n \r\n
Up (Voltage Protection Level)<\/strong><\/div>\r\n
This is one of the most important parameters, representing the residual voltage across the SPD after it trips. The Up value must be lower than the withstand voltage level of the protected equipment. The lower the value, the better the protection effect.<\/div>\r\n \r\n
In (Nominal Discharge Current)<\/strong><\/div>\r\n
For Type 2 SPDs, this indicates that it can withstand 15 peak current surges from an 8\/20\u00b5s waveform. It is a key indicator of the discharge capability of a Type 2 SPD.<\/div>\r\n \r\n

Conclusion<\/h2>\r\n
Surge Protection Device (SPD) is a comprehensive technical term, while Surge Protector and Surge Arrester are specific expressions of it in different contexts and application levels.<\/div>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/blog\/2229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/media\/1743"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/media?parent=2229"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/da\/wp-json\/wp\/v2\/blog_category?post=2229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}