BS EN 61643:21-2001+A2:2013

Lisebelisoa tse sireletsang matla a tlaase

Karolo ea 21: Lisebelisoa tse sirelletsang tse hoketsoeng tse hokahantsoeng le likhokahano tsa mehala ea puisano le mehala

Selelekela sa Naha

Tekanyetso ena ea Borithane ke ts'ebetsong ea UK ea
EN 61643-21: 2001 + A2: 2013 E tsoa ho IEC 61643-21: 2000, e kenyelletsang corrigendum Hlakubele 2001 le tokiso ea 2: 2012. E nka sebaka sa BS EN 61643-21: 2001 + A1: 2009, e tlositsoeng.

Qalo le qetello ea mongolo e hlahisitsoeng kapa e fetotsoeng ka phetoho e bonts'itsoe sengolong ka li-tag. Litags tse bonts'ang liphetoho ho sengoloa sa IEC li na le palo ea phetoho ea IEC. Mohlala, mongolo o fetotsoeng ke tokiso ea 1 ea IEC o bontšoa ke A1.

Moo phetoho e tloaelehileng ea phetoho ea IEC e hlahisitsoeng, li-tag li na le palo ea phetoho, mohlala, liphetoho tse tloaelehileng tse hlahisitsoeng ke CENELEC ho phetoho ea 1 ea IEC li bontšoa ke C1.

Ho nka karolo ha UK tokisetsong ea eona ho ile ha beoa tlhokomelong ea Komiti ea Teknoloji PEL / 37, Surge Arresters - High Voltage, ho Subcommittee PEL / 37/1, Surge arresters - Low voltage.

Lethathamo la mekhatlo e emeloang komiting ena e nyane e ka fumaneha ka kopo ho mongoli oa eona.

Sengoliloeng sena ha se bolele hore se kenyelletsa lipehelo tsohle tse hlokahalang tsa konteraka. Basebelisi ba ikarabella bakeng sa ts'ebeliso ea eona e nepahetseng.

Ho latela Molao oa Borithane ho ke ke ha fana ka boits'ireletso ho boitlamo ba molao.

SELELEKELA

Morero oa Tekanyetso ena ea Machabeng ke ho supa litlhoko tsa Surge Protect Devices (SPDs) tse sebelisitsoeng ho sirelletsa likhokahanyo tsa mehala ea puisano le mehala kapa mohlala oa data ea vol-voltage, lentsoe le alamo. Litsamaiso tsena kaofela li ka pepesetsoa litlamorao tsa lehalima le liphoso tsa mohala, ekaba ka ho ikopanya ka kotloloho kapa ho kenella. Litholoana tsena li ka beha sistimi ho li-overvoltages kapa overcurrents kapa ka bobeli, bao maemo a bona a leng holimo haholo ho senya sistimi. Li-SPD li etselitsoe ho fana ka ts'ireletso ea li-overvoltages le li-overcurrent tse bakoang ke liphoso tsa lehalima le line ea motlakase. Tekanyetso ena e hlalosa liteko le litlhokahalo tse hlahisang mekhoa ea ho leka li-SPD le ho lekola ts'ebetso ea mojalefa.

Li-SPD tse lebisitsoeng ho Standard ena ea Machabeng li kanna tsa ba le likarolo tsa ts'ireletso ea tšollo ea motlakase feela, kapa motsoako oa likarolo tsa ts'ireletso ea overvoltage le overcurrent Lisebelisoa tsa ts'ireletso tse nang le likarolo tsa ts'ireletso ea overcurrent feela ha li maemong a boemo bona. Leha ho le joalo, lisebelisoa tse nang le overcurre feela
koahetsoeng ka sehlomathiso A.

SPD e ka ba le likarolo tse 'maloa tsa tšireletso ea overvoltage le overcurrent. Li-SPD tsohle li lekoa ka "lebokose le letšo", ke hore, palo ea li-terminals tsa SPD e khetholla ts'ebetso ea liteko, eseng palo ea likarolo tsa SPD. Lisebelisoa tsa SPD li hlalositsoe ho 1.2. Tabeng ea li-SPD tse ngata, mohala ka mong o ka lekoa ntle le a mang, empa ho kanna ha ba le tlhoko ea ho leka mela eohle ka nako e le ngoe.

Tekanyetso ena e akaretsa maemo a fapaneng a liteko le litlhokahalo; Ts'ebeliso ea tse ling tsa tsona ke ka boikhethelo ba mosebelisi. Litlhoko tsa maemo ana li amana joang le mefuta e fapaneng ea SPD e hlalositsoeng ho 1.3. Le ha ena e le maemo a ts'ebetso mme ho hlokahala bokhoni bo itseng ho li-SPD, litefiso tsa ho hloleha le botoloki ba tsona li tlohelletsoe mosebelisi. Melao-motheo ea khetho le ts'ebeliso e tla koaheloa ho IEC 61643-22 1).

Haeba SPD e tsejoa e le sesebelisoa se le seng, e tlameha ho fihlela litlhoko tsa maemo a amehang le a maemo ana.