Tarihin kariyar walƙiya ya kasance a cikin shekarun 1700, amma an sami ci gaba kaɗan ga fasaha.Preventor 2005 ya ba da babbar ƙira ta farko a masana'antar kariyar walƙiya tun lokacin da ta fara a cikin 1700.A zahiri, har ma a yau, samfuran gama gari da ake bayarwa akai-akai ne kawai ƙananan sandunan walƙiya na gargajiya da ke da alaƙa da maze na wayoyi da aka fallasa - fasahar da ta samo asali daga shekarun 1800.

1749 - Franklin Rod.Gano yadda wutar lantarki ke tafiya ya tuna da hoton Benjamin Franklin a tsaye a cikin tsawa rike da ƙarshen wata kyanwa kuma yana jiran walƙiya ta fado.Don "gwajinsa na samo walƙiya daga gajimare ta sanda mai nuna alama," Franklin ya zama memba na Royal Society a 1753.Shekaru da yawa, duk kariyar walƙiya ta ƙunshi sandar Franklin da aka ƙera don jan hankalin walƙiya da ɗaukar cajin ƙasa.Yana da iyakataccen tasiri kuma a yau ana ɗaukarsa tsohon.Yanzu wannan hanyar ana ɗaukarta mai gamsarwa ne kawai ga ƙwanƙolin coci, dogayen bututun masana'antu da hasumiya waɗanda yankunan da za a kare ke cikin mazugi.

1836 - Faraday Cage System.Sabuntawar farko ga sandar walƙiya ita ce kejin Faraday.Wannan shi ne ainihin shingen da aka kafa ta hanyar raga na kayan aiki akan rufin gini.Wannan hanyar da aka yi wa suna da masanin kimiyar Ingila Michael Faraday, wanda ya ƙirƙira su a shekara ta 1836, wannan hanya ba ta da gamsarwa kwata-kwata domin tana barin wuraren da ke tsakiyar rufin tsakanin madugu ba tare da kariya ba, sai dai idan an kare su da tashoshi na iska ko masu kula da rufin a matakai mafi girma.

• na Faraday System, kariyar walƙiya ta ƙunshi sandunan walƙiya da yawa, waɗanda ba su ƙasa da tsayin ƙafa ɗaya ba, an daidaita su akan duk mahimman wuraren da ke kan rufin.Dole ne a haɗa su tare da masu kula da rufin da yawancin masu gudanarwa na ƙasa don samar da kejin da bai wuce ƙafa 50 x 150 ba kuma suna da tashoshi na iska a tsaka-tsakin wuraren rufin tsakiya.
  Ginin da aka wakilta anan yana da tsayi 150 ft. x 150 ft. x 100 ft. tsayi.Hanyar Faraday yana da tsada don shigarwa, yana buƙatar kayan aiki masu yawa akan rufin rufin da kuma shigar da rufin da yawa… amma har tsakiyar 1900's, babu wani abu mafi kyau.

• 1953 - Mai hanawa.Preventor tashar iska ce mai ionizing wacce ke da ƙarfi a cikin aiki.JB Szillard ya fara gwaji tare da masu sarrafa hasken ionizing a Faransa, kuma a cikin 1931, Gustav Capart ya ba da izinin irin wannan na'urar.A cikin 1953, ɗan Gustav Alphonse ya inganta akan na'urar juyin juya hali na mahaifinsa, kuma ƙirarsa ta haifar da abin da muka sani a yau a matsayin Preventor.
  The Preventor 2005 daga baya aka kammala ta Heary Brothers na Springville, New York.
  Masu hanawa suna da ƙarfi a cikin aiki, yayin da, hanyoyin da suka gabata suna tsaye.Misali, lokacin da gajimare mai hadari ya kusanci ginin da aka karewa, filin ion wutar lantarki tsakanin gajimare da kasa yana karuwa.ions na gudana kullum daga naúrar, suna ɗaukar wasu cajin ion ƙasa zuwa ga gajimare, kuma wannan yana da tasirin rage ƙarfin filin ion na ɗan lokaci tsakanin gajimare da ƙasa.Dole ne a fahimci sarai cewa ba zai iya kawar da girgije ba.Bai wuce rage tashin hankali na ɗan ƙaramin lokacin da girgijen ke wucewa ba - amma wannan raguwar tashin hankali na ɗan lokaci ya isa ya hana fitar walƙiya daga kunnawa.A gefe guda kuma, lokacin da wannan raguwar tashin hankali bai isa ya hana haifar da tayar da hankali ba, ana samar da magudanar ruwa na ion don gudanar da fitarwa cikin aminci zuwa tsarin ƙasa / ƙasa.
  Heary Brothers yana kasuwanci tun 1895 kuma shine mafi girma kuma mafi tsufa na kera kayan kariya na walƙiya a duniya.Ba wai kawai ke ƙera Preventor ba, har ma suna ba da garantin aikin sa.Garanti yana goyan bayan amanufofin inshorar samfur dala miliyan goma.

* Mai hana 2005 samfurin.