Babban ra'ayi

Don cimma cikakkiyar aikin gidan wutar lantarki na photovoltaic (PV), ko ƙarami, wanda aka sanya a saman rufin gidan dangi ko babba, ya faɗaɗa kan yankuna da yawa, ya zama dole a samar da hadadden aiki. Aikin ya hada da daidaitaccen zaɓi na bangarorin PV da sauran fannoni kamar tsarin inji, tsarin wayoyi mafi kyawu (wurin da ya dace da abubuwan da aka haɗa, daidaitaccen kula da cabling, haɗin haɗin kai ko kariya ta hanyar sadarwa) da kuma kariya ta waje da ta ciki game da walƙiya da wuce haddi. Kamfanin LSP yana ba da na'urorin kariya na ƙaruwa (SPD), wanda zai iya kare jarin ku a cikin ƙananan kuɗin kuɗin sayayya. Kafin ƙaddamar da na'urori masu kariya daga tashin hankali, ya zama dole ku saba da takamaiman bangarorin hoto da haɗin su. Wannan bayanin yana ba da asali na asali don zaɓi na SPD. Ya shafi matsakaicin ƙarfin buɗe ido na PV panel ko kirtani (sarkar bangarori da aka haɗa a jeri). Haɗin bangarorin PV a cikin jerin yana ƙaruwa da ƙarfin ƙarfin DC duka, wanda daga nan aka canza shi zuwa ƙarfin AC a cikin masu juyawa. Manyan aikace-aikace na iya kai tsaye zuwa 1000 V DC. Voltageirƙiri mai zagayawa na kwamitin PV yana ƙaddara ta ƙarfin hasken rana da ke faɗuwa akan ƙwayoyin kwamiti da yawan zafin jiki. Yana tashi tare da haɓakar girma, amma yana saukad da hauhawar zafin jiki.

Wani muhimmin mahimmanci ya haɗa da aikace-aikacen tsarin kare walƙiya na waje - sandar walƙiya. Matsakaicin CSN EN 62305 ed.2 akan Kariya akan walƙiya, Sashi na 1 zuwa 4 yana bayyana nau'ikan asarar, haɗari, tsarin kariya ta walƙiya, matakan kariya daga walƙiya da kuma isa nesa da arcing. Waɗannan matakan kare walƙiya huɗu (I zuwa IV) suna ƙayyade sigogi na walƙiya kuma ƙaddarar an bayar ta matakin haɗari.

A ka'ida, akwai yanayi guda biyu. A yanayi na farko, ana bukatar kariya ga abu ta hanyar kariya daga walƙiya ta waje, amma nesa ba kusa ba (watau nisan tsakanin cibiyar sadarwar iska da kuma tsarin PV) ba za'a iya kiyaye shi ba. A karkashin waɗannan sharuɗɗan, ya zama dole don tabbatar da haɗin haɗi tsakanin cibiyar sadarwar iska da tsarin tallafi na bangarorin PV ko sassan Firar PV. Walƙiyar ruwa ta hau I_imp (halin motsawa tare da sigar 10/350 μs) suna iya shiga cikin da'irorin DC; don haka ya zama dole a girka nau'in kariya ta ƙaruwa ta 1. LSP tana ba da ingantaccen bayani a cikin sifofin haɗakar nau'ikan 1 + 2 na kariyar ƙaruwa masu ƙarfi FLP7-PV, waɗanda aka samar don ƙarfin lantarki 600 V, 800 V da 1000 V tare da ko ba tare da alamar nesa ba. A yanayi na biyu, babu buƙatar ba kayan da aka kiyaye ta hanyar tsarin kariya ta walƙiya ta waje, ko kuma za'a iya kiyaye tazarar arcing. A wannan yanayin, walƙiyar walƙiya ba za ta iya shiga cikin kewayen DC ba kuma ana yin la'akari da yawan zafin rana ne kawai (halin yanzu tare da sigar 8/20 μs), inda nau'in kariyar ƙarfe na 2 ya isa, misali jerin SLP40-PV, wanda aka samar don ƙarfin 600 V, 800 V, da 1000 V, kuma tare da ko ba tare da alamar nesa ba.

Lokacin ƙaddamar da na'urorin kariya, dole ne muyi la’akari da gefen AC da kuma bayanai da layukan sadarwa, waɗanda ake amfani dasu daidai a tashar wutar lantarki ta PV ta zamani. Ana kuma fuskantar barazanar tashar wutar lantarki ta PV daga gefen hanyar sadarwar DC (rarrabawa). A wannan gefen, zaɓin SPD mai dacewa ya fi fadi kuma ya dogara da aikace-aikacen da aka bayar. A matsayina na mai kariyar karuwar iska, muna ba da shawarar na'uran zamani na FLP25GR, wanda ya hada dukkan nau'ikan 1 + 2 + 3 guda uku a cikin mitoci biyar daga wurin kafuwa. Ya ƙunshi haɗuwa da masu rarrabe abubuwa da walƙiyar walƙiya. LSP tana ba da jerin na'urori masu yawa na kariya don aunawa da tsarin ƙa'idodi tare da layukan canja wurin bayanai. Sabbin nau'ikan masu juyawa galibi ana sanya su da musaya wacce ke ba da damar lura da dukkan tsarin. Samfurori sun haɗa da nau'ikan musaya da dama iri-iri don mitoci daban-daban da zaɓin adadin nau'i-nau'i. A matsayin misali, zamu iya ba da shawarar DIN Rail da aka ɗora a kan SPDs FLD2 ko PoE mai ƙaruwa mai ƙarfi ND CAT-6A / EA.

Yi la'akari da misalai masu zuwa na aikace-aikace na asali guda uku: ƙaramin tashar wutar lantarki PV akan rufin gidan dangi, tashar matsakaiciya a saman rufin ginin mulki ko masana'antu da kuma babban filin shakatawa na hasken rana wanda ya faɗaɗa kan babban fili.

Gidan gida

Kamar yadda aka ambata a cikin gaba ɗaya game da na'urorin kariyar ƙaruwa don tsarin PV, zaɓin nau'ikan nau'ikan na'urar yana shafar abubuwa da yawa. Duk samfuran LSP don aikace-aikacen PV an daidaita su zuwa DC 600 V, 800 V da 1000 V. Ana zaɓar kowane irin ƙarfin lantarki koyaushe gwargwadon matsakaicin ƙarfin buɗe ido wanda mai ƙira ya ƙayyade dangane da tsarin da aka bayar na bangarorin PV tare da ca 15 ajiyar% Don gidan dangi - karamin tashar wutar lantarki ta PV, muna ba da shawarar samfuran FLP7-PV jerin a gefen DC (bisa sharadin cewa gidan dangi baya bukatar kariya ta waje daga walƙiya ko tazarar da ke tsakanin cibiyar sadarwar iska da PV tsarin yana kiyayewa), ko jerin SLP40-PV (idan an shigar da cibiyar sadarwar iska a nesa mafi ƙanƙanta da tazarar arcing). Kamar yadda ƙungiyar FLP7-PV na'urar haɗe ce mai nau'in 1 + 2 (kare duka biyu a kan raƙuman ruwa na walƙiya da wuce haddi) kuma bambancin farashin ba mai girma bane, ana iya amfani da wannan samfurin don zaɓuɓɓukan biyu, don haka hana kuskuren ɗan adam idan aikin ya kasance ba'a cika lura ba.

A gefen AC, muna ba da shawarar aikace-aikacen kayan aiki na FLP12,5 a cikin babban mai rarraba ginin. An kerarre shi a cikin tsayayyen kuma wanda za'a maye gurbin salo na FLP12,5. Idan inverter ya kasance a cikin kusancin babban mai rarrabawa, ana kiyaye gefen AC ta na'urar kariya ta tashin hankali ta babban mai rarrabawa. Idan ya kasance misali a ƙarƙashin rufin ginin, ya zama dole a maimaita girka nau'in na'uran kariya na 2, misali jerin SLP40 (kuma a cikin tsayayyen ko wanda za'a iya maye gurbinsa) a cikin mai rarrabawa yawanci yana kusa da inverter. Muna ba da duk nau'ikan da aka ambata na na'urorin kariyar ƙaruwa don tsarin DC da AC kuma a cikin siginar nesa. Don bayanai da layukan sadarwa, muna bada shawarar shigar da DIN layin dogo FLD2 na'urar kariya ta ƙaruwa tare da ƙare dunƙule.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

FLP12,5-275 / 1S + 1 sandar igiyoyi biyu ne, walƙiyar walƙiya mai walƙiya ta ƙarni mai ƙarfi da argester, haɗe shi da bututun iskar gas Nau'in 1 + 2 bisa ga EN 61643-11 da IEC 61643-11. Ana ba da shawarar waɗannan masu kama don amfani da su a cikin Tsarin Tsarin Kariya na Walƙiya a iyakokin LPZ 0 - 1 (bisa ga IEC 1312-1 da EN 62305 ed.2), inda suke ba da haɗin haɗi da fitarwa na duka, walƙiyar ta yanzu da kuma karuwar sauyawa, wanda aka samar dashi cikin tsarin samar da wutar lantarki wanda ke shiga cikin ginin. Amfani da masu kamawar walƙiya a yanzu FLP12,5-275 / 1S + 1 yafi yawa a cikin layukan samar da wuta, waɗanda ake aiki da su kamar tsarin TN-S da TT. Babban amfani da FLP12,5-275 / 1S + 1 jerin kayan kwalliya yana cikin sifofin LPL III - IV bisa ga EN 62305 ed.2. Alamar alamar "S" ta ƙayyade sigar tare da kulawa ta nesa.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

Jerin FLP7-PV sigar walƙiya ce mai saurin tashi 1 + 2 bisa ga EN 61643-11 da IEC 61643-11 da UTE C 61-740-51. Ana ba da shawarar waɗannan masu kama don amfani da su a cikin Zididdigar Yankin Kariyar Walƙiya a kan iyakokin LPZ 0-2 (bisa ga IEC 1312-1 da EN 62305) don haɗin haɗin kyawawan motocin busbars masu kyau da mara kyau na tsarin photovoltaic da kawar da wuce gona da iri wanda ya samo asali a lokacin fitowar yanayi ko sauya tsarin. Yankunan bangarori daban-daban, waɗanda aka haɗa tsakanin tashoshin L +, L- da PE, an sanye su da masu cire haɗin ciki, waɗanda aka kunna lokacin da masu bambance-bambancen suka kasa (overheat). Alamar halin aiki na waɗannan masu haɗin haɗin yana da wani ɓangare na gani (lalacewar filin sigina) kuma tare da sa ido mai nisa.

Ginin gudanarwa da masana'antu

Rulesa'idodin ƙa'idodi don na'urori masu kariya daga tashin hankali suma ana amfani dasu don wannan aikin. Idan muka yi watsi da ƙarfin lantarki, mahimmin yanke hukunci shine sake ƙirar cibiyar sadarwar iska. Kowane ginin mulki ko masana'antu zai kasance dole ne a tanada shi da tsarin kariyar tashin hankali daga waje. Da kyau, ana sanya tashar wutar lantarki ta PV a cikin yankin kariya na walƙiyar waje da mafi ƙarancin arcing tsakanin cibiyar sadarwar iska da kuma tsarin PV (tsakanin ainihin bangarorin ko tsarin tallafon su) ana kiyaye su. Idan nisan cibiyar sadarwar iska ta fi ta nesa nesa, za mu iya yin la’akari ne da tasirin yawan zafin wuta da sanya irin na’urar kariya ta karuwa, misali jerin SLP2-PV. Duk da haka, har yanzu muna ba da shawarar shigar da nau'ikan na'urori masu kariya iri iri 40, 1, waɗanda ke iya kariya daga raƙuman ruwan walƙiya gami da yiwuwar wuce gona da iri. Ofayan waɗannan na'urori masu kariya ita ce sashin SLP2-PV, wanda ke da nau'ikan maye gurbin amma yana da loweran karkatar da ƙarfi fiye da FLP40-PV, wanda ke da mafi ikon karkatarwa kuma don haka ya fi dacewa da manyan aikace-aikace. Idan ba za a iya kiyaye mafi ƙarancin arcing ba, ya zama dole a tabbatar da haɗin haɗi na isasshen diamita tsakanin dukkanin sassan gudanarwar PV da kariyar walƙiya ta waje. Duk waɗannan na'urori masu kariya na kariya an girka su a cikin ƙananan masu rarraba a gefen DC kafin mashigar zuwa mai juyawa. Idan ya fi girma aikace-aikace inda igiyoyi suke da tsayi ko kuma idan ana amfani da masu haɗa layin, ya dace a maimaita kariyar ƙaruwa har ma a waɗannan yankuna.

Nau'in 1 + 2 na FLP25GR ana ba da kwatankwacin daidaitacce don babban mai rarraba ginin a ƙofar layin AC. Yana nuna fastoci iri biyu don aminci mafi girma kuma yana iya yin alfahari da halin motsa jiki na 25 kA / iyakacin duniya. FLungiyar FLP25GR, wani sabon abu a fagen karuwar tashin hankali, ya haɗa dukkan nau'ikan 1 + 2 + 3 guda uku kuma ya ƙunshi haɗuwa da masu bambancin ra'ayi da mai walƙiya, don haka yana ba da fa'idodi da yawa. Duk waɗannan samfuran zasu kare ginin lami lafiya. A mafi yawan lokuta, mai juya injin zai kasance daga babban mai rarrabawa, saboda haka zai sake zama dole a girka na'urar kariya a cikin mai rarrabawa nan da nan bayan hanyar AC. Anan za mu iya maimaita kariyar haɓaka ta matakin 1 + 2 tare da na'urar FLP12,5, wanda aka samar a cikin tsayayyen mai maye gurbin FLP12,5 ko kawai nau'in SPD na 2 na jerin III (kuma a cikin tsayayyen da za'a maye gurbinsu). Muna ba da duk nau'ikan da aka ambata na na'urorin kariyar ƙaruwa don tsarin DC da AC kuma a cikin siginar nesa.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

FLP25GR / 3 + 1 shine rarar fitarwa mai hoto Nau'in 1 + 2 bisa ga EN 61643-11 da IEC 61643-11.Wadannan ana ba da shawarar don amfani da su a Tsarin Zaman Kariyar Walƙiya a iyakokin LPZ 0-1 (bisa ga IEC 1312 -1 da EN 62305), inda suke samarda kayan aiki da kuma fitarwa daga duka biyun, wutan lantarkin da kuma karuwar sauyawa, wadanda ake samarwa a tsarin samarda wutar lantarki wanda yake shigowa ginin. Amfani da masu kamawar walƙiya a yanzu FLP25GR / 3 + 1 yafi yawa a cikin layukan samar da wuta, waɗanda ake aiki da su kamar tsarin TN-S da TT. Babban amfani da FLP25GR / 3 + 1 arrester yana cikin sifofin LPL I - II bisa ga EN 62305 ed.2. Tashoshi biyu na na'urar suna ba da izinin haɗin "V" a iyakar matsakaicin ɗaukar halin yanzu na 315A.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

FLP7-PV sune walƙiya da masu kama-karya suna kama 1 + 2 bisa ga EN 61643-11 da IEC 61643-11 da UTE C 61-740-51. Ana ba da shawarar waɗannan masu kama don amfani da su a cikin Tsarin Tsarin Kariya na Walƙiya a kan iyakokin LPZ 0-2 (bisa ga IEC 1312-1 da EN 62305) don haɗin haɗin kayan aiki mai kyau da mara kyau na basba na tsarin hotunan hoto da kuma kawar da wuce gona da iri wanda ya samo asali a lokacin fitowar yanayi ko sauya tsarin. Yankunan bangarori daban-daban, waɗanda aka haɗa tsakanin tashoshin L +, L- da PE, an sanye su da haɗin haɗin ciki, waɗanda aka kunna lokacin da masu bambance-bambancen suka kasa (overheat). Alamar halin aiki na waɗannan masu cirewar wani bangare ne na gani (canza launin filin siginar) da kuma sa ido kan nesa (ta hanyar canjin canjin kyauta akan lambobin sadarwa).

Saukewa: LPZ 1-2-3

TLP wani hadadden kewayon na'urorin kariya ne da aka tsara don kariyar bayanai, sadarwa, aunawa da layin shawo kan tasirin tashin hankali. Waɗannan na'urori masu kariya na ƙaruwa ana ba da shawarar yin amfani da su a cikin Tsarin Zaman Kariyar Walƙiya a kan iyakokin LPZ 0_{A (B)} - 1 bisa ga EN 62305. Duk nau'ikan suna ba da kariya mai tasiri na kayan haɗin haɗi akan yanayin gama gari da tasirin tashin hankali na yanayin banbanci bisa ga IEC 61643-21. Matsayin da aka ƙididdige na layin kariya na mutum I_L <0,1A. Wadannan na'urori sun kunshi bututun fitarwa na iskar gas, impedance jerin, da wucewa. Yawan adadin nau'i-nau'i masu kariya zaɓi ne (1-2). Waɗannan na'urori ana kera su don ƙarfin lantarki mara ƙarfi tsakanin kewayon 6V-170V. Matsakaicin fitarwa yanzu shine 10kA (8/20). Don kariya ga layukan tarho, ana ba da shawarar amfani da nau'ikan da keɓaɓɓen ƙarfin lantarki U_N= 170V

Saukewa: LPZ2-3

Waɗannan na'urori masu kariya na ƙaruwa waɗanda aka tsara don cibiyoyin sadarwar komputa an tsara su ne na musamman don amintar da canja wurin bayanai mara aibu a tsakanin rukunin cibiyoyin sadarwa na kwamfuta 5. Suna kare hanyoyin lantarki na shigar da katunan cibiyar sadarwa daga ɓarnar da lalacewar ta haifar a cikin Zankin Kariyar Walƙiya a kan iyakokin LPZ 0_{A (B)} -1 kuma mafi girma bisa ga EN 62305. Ana ba da shawarar yin amfani da waɗannan na'urorin kariya a shigar da kayan aikin kariya.

Manyan tashoshin wutar lantarki masu daukar hoto

Ba a sanya tsarin kariyar walƙiya na waje akai-akai a cikin manyan tashoshin wutar lantarki na photovoltaic. Bayan haka, yin amfani da kariya ta nau'in 2 ba zai yiwu ba kuma ya zama dole ayi amfani da na'urar kariya ta ƙaruwa ta 1 + 2. Tsarin manyan shuke-shuke da wutar lantarki PV sun hada da babban inverter na tsakiya tare da fitowar daruruwan kW ko kuma tsarin da aka rarraba tare da mafi girman masu juya masu juyawa. Tsawon layukan kebul yana da mahimmanci ba kawai don kawar da asara ba har ma don inganta kariyar ƙaruwa. Idan akwai mai juyawa ta tsakiya, ana gudanar da kebul na DC daga igiyoyin mutum zuwa mahaɗan layi wanda daga nan ake gudanar da kebul ɗin DC guda zuwa babban mai juyawa. Saboda tsayin igiyoyin, wanda zai iya kaiwa ɗaruruwan mitoci a cikin manyan tashoshin wutar lantarki na PV, da kuma yuwuwar kai tsaye walƙiya kai tsaye a kan masu jan layi ko kuma kai tsaye bangarorin PV, yana da mahimmanci a girka na'urar kariya ta ƙaruwa ta 1 + 2 masu tattara layin tun kafin shigarwa zuwa inverter ta tsakiya. Muna ba da shawarar naúrar FLP7-PV tare da mafi ikon karkatarwa. Game da tsarin rarrabawa, yakamata a sanya na'urar kariya ta tashin hankali a gaban kowane mashigar DC zuwa mai juyawar. Zamu iya sake amfani da naúrar FLP7-PV. A kowane yanayi, kar mu manta da haɗa haɗin dukkan sassan ƙarfe tare da ƙasa don daidaita ƙimar.

Don gefen AC a bayan fitarwa daga inverter ta tsakiya, muna ba da shawarar naúrar FLP25GR. Waɗannan na'urorin kariya na ƙaruwa suna ba da izinin raƙuman ruwa mai yawa na 25 kA / iyakacin duniya. Idan akwai tsarin rarrabawa, ya zama dole a girka wata na'urar kare kariya, misali FLP12,5, a bayan kowace tashar AC daga inverter kuma a maimaita kariya ta abubuwan da aka ambata FLP25GR a cikin babban mai rarraba AC. Layin AC akan mafitar daga inverter ta tsakiya ko babban mai rarraba AC ana yin shi akai-akai zuwa tashar tashar wuta ta kusa inda ake canza wutar lantarki zuwa HV ko VHV sannan kuma a yi amfani da ita zuwa layin wutar lantarki na sama. Saboda yiwuwar samin walƙiya kai tsaye a layin wutar, dole ne a girka naúrar ƙarƙiri mai kariya ta 1 a tashar taransifoma. Kamfanin LSP yana ba da na'urar ta FLP50GR, wanda ya fi isa ga waɗannan aikace-aikacen. Tazara ce ta walƙiya wacce ke iya karkatar da bugun zafin wutan lantarki na 50 kA / pole.

Don tabbatar da daidaitaccen aiki na babban tashar wuta da matsakaicin iya aiki, ana kula da tashar wutar lantarki ta hanyar auna lantarki da tsarin ƙa'idodi na zamani da kuma canja wurin bayanai zuwa ɗakin sarrafawa. Tsarin daban-daban suna aiki tare da iyakoki daban-daban kuma LSP yana ba da kariya ga duk tsarin ingantaccen tsari. Kamar aikace-aikacen da suka gabata, muna ba da juzu'i kaɗan na samfuran a nan, amma muna iya bayar da ra'ayoyi daban-daban na musamman.

Kamfanin LSP yana da wakilci a cikin ƙasashe da yawa kuma ƙwararrun ma'aikatanta suna shirye don taimaka muku game da zaɓar na'urar kariya mai ƙarfi da ta dace don aikace-aikacen da aka bayar ko ra'ayin fasaha na aikinku na musamman. Hakanan zaka iya ziyartar gidan yanar gizon mu a www.LSP.com inda zaka iya tuntuɓar wakilanmu na kasuwanci kuma sami cikakkiyar tayin samfuranmu, waɗanda duk suka dace da ƙa'idodin ƙasashen duniya IEC 61643-11: 2011 / EN 61643-11: 2012.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

FLP12,5-xxx / 3 + 1 shine walƙiya mai walƙiya ta ƙarfe da ƙaruwa mai ƙarfi, haɗe shi da bututun iskar gas Type 1 + 2 bisa ga EN 61643-11 da IEC 61643-11.Wadannan ana ba da shawarar amfani da shi a Yankin Kariyar Walƙiya Ra'ayi a iyakokin LPZ 0-1 (bisa ga IEC 1312-1 da EN 62305), inda suke ba da haɗin haɗin kai da fitowar duka biyun, wutar walƙiya da karuwar sauyawa, waɗanda aka samar da su cikin tsarin samar da wutar lantarki da ke shiga cikin ginin . Amfani da masu kamawar walƙiya a yanzu FLP12,5-xxx / 3 + 1 yafi yawa a cikin layukan samar da wuta, waɗanda ake aiki da su kamar tsarin TN-S da TT. Babban amfani da FLP12,5-xxx / 3 + 1 arrester yana cikin sifofin LPL I - II bisa ga EN 62305 ed.2.

TYP 1 + 2 / KASASHE I + II / TN-S / TT

FLP25GR-xxx / 3 + 1 shine walƙiyar ƙarfen ƙarfe mai walƙiya da haɓaka mai ƙarfi, haɗe shi da bututun iskar gas Nau'in 1 + 2 bisa ga EN 61643-11 da IEC 61643-11.Wadannan ana ba da shawarar amfani da su a cikin Tsarin Zaman Kariyar Walƙiya a iyakokin LPZ 0-1 (bisa ga IEC 1312-1 da EN 62305), inda suke ba da haɗin haɗin kai da fitowar duka biyun, wutar walƙiya da karuwar sauyawa, waɗanda aka samar da su cikin tsarin samar da wutar lantarki da ke shiga cikin ginin. Amfani da masu kamawar walƙiya a yanzu FLP12,5-xxx / 3 + 1 yafi yawa a cikin layukan samar da wuta, waɗanda ake aiki da su azaman tsarin TN-S da TT. Babban amfani da FLP25GR-xxx arrester yana cikin sifofin LPL III - IV bisa ga EN 62305 ed.2.

TYP 1 + 2 / KASASHE I + II

FLP7-PV nau'in walƙiya ne mai saurin walwala da haɓaka kamar yadda EN 1-2 da EN 61643. An tsara shi don kariya ga kyawawan busbars na tsarin photovoltaic akan tasirin karuwa. Ana ba da shawarar waɗannan masu kama don amfani da su a cikin Tsarin Zanen Kariyar Walƙiya a kan iyakokin LPZ 11-50539 (a cewar IEC 0-2and EN 1312). Ctorsungiyoyin varistor na musamman an sanye su da masu cire haɗin ciki, waɗanda aka kunna lokacin da bambance-bambancen suka kasa (overheat). Alamar matsayin aiki na waɗannan masu cire haɗin na daga cikin injina ne (ta hanyar amfani da siginar jan aiki idan aka gaza) kuma tare da sanya ido daga nesa.

Saukewa: LPZ 1-2-3

TLP wani hadadden kewayon na'urorin kariya ne da aka tsara don kariyar bayanai, sadarwa, aunawa da layin shawo kan tasirin tashin hankali. Waɗannan na'urori masu kariya na ƙaruwa ana ba da shawarar yin amfani da su a cikin Tsarin Zaman Kariyar Walƙiya a kan iyakokin LPZ 0_{A (B)} - 1 bisa ga EN 62305. Duk nau'ikan suna ba da kariya mai tasiri na kayan haɗin haɗi akan yanayin gama gari da tasirin tashin hankali na yanayin banbanci bisa ga IEC 61643-21. Matsayin da aka ƙididdige na layin kariya na mutum I_L <0,1A. Wadannan na'urori sun kunshi bututun fitarwa na iskar gas, impedance jerin, da wucewa. Yawan adadin nau'i-nau'i masu kariya zaɓi ne (1-2). Waɗannan na'urori ana kera su don ƙarfin lantarki mara ƙarfi tsakanin kewayon 6V-170V. Matsakaicin fitarwa yanzu shine 10kA (8/20). Don kariya ga layukan tarho, ana ba da shawarar amfani da nau'ikan da keɓaɓɓen ƙarfin lantarki U_N= 170V.