[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rahman.cz\/revize-hromosvodu-zachranuje-majetek-i-zivoty\/#Article","mainEntityOfPage":"https:\/\/www.rahman.cz\/revize-hromosvodu-zachranuje-majetek-i-zivoty\/","headline":"Revize hromosvod\u016f zachra\u0148uje majetek i \u017eivoty","name":"Revize hromosvod\u016f zachra\u0148uje majetek i \u017eivoty","description":"Zn\u00e1te film \u201eSvatebn\u00ed cesta do Jilj\u00ed\u201c? P\u0159ekr\u00e1sn\u00e1 komedie, jedna z nejlep\u0161\u00edch, kter\u00e1 kdy byla nato\u010dena (nejen v \u010ceskoslovensku). V \u00favodn\u00ed […]","datePublished":"2024-07-06","dateModified":"2024-07-06","author":{"@type":"Person","@id":"https:\/\/www.rahman.cz\/author\/#Person","name":"","url":"https:\/\/www.rahman.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/831abbcc684823965c5caa39ae4561083127c8aedfe9e524c6cecc176998c733?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/831abbcc684823965c5caa39ae4561083127c8aedfe9e524c6cecc176998c733?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rahman.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rahman.cz\/wp-content\/uploads\/lightning-1625550_640_3.jpg","url":"https:\/\/www.rahman.cz\/wp-content\/uploads\/lightning-1625550_640_3.jpg","height":0,"width":0},"url":"https:\/\/www.rahman.cz\/revize-hromosvodu-zachranuje-majetek-i-zivoty\/","about":["Byznys"],"wordCount":410,"articleBody":"            Zn\u00e1te film \u201eSvatebn\u00ed cesta do Jilj\u00ed\u201c? P\u0159ekr\u00e1sn\u00e1 komedie, jedna z nejlep\u0161\u00edch, kter\u00e1 kdy byla nato\u010dena (nejen v \u010ceskoslovensku). V \u00favodn\u00ed pas\u00e1\u017ei se tam Josef Abrh\u00e1m s Libu\u0161\u00ed \u0160afr\u00e1nkovou pot\u00fdkaj\u00ed s bou\u0159kou, kter\u00e1 je zastihne v krajin\u011b, a to je opravdu p\u011bkn\u00e1 pat\u00e1lie, zvl\u00e1\u0161t\u011b v hor\u00e1ch na vyv\u00fd\u0161en\u00fdch m\u00edstech. Pan Abrh\u00e1m tam svou vystra\u0161enou dru\u017eku uklid\u0148uje sv\u00e9r\u00e1zn\u00fdm a samoz\u0159ejm\u011b nesmysln\u00fdm tvrzen\u00edm, aby \u201ep\u0159e\u0161la do pod\u0159epu, hlavu sev\u0159ela v kolenou a do \u00fast vsunula v\u011btvi\u010dku z jehli\u010dnanu.\u201cTakto to pochopiteln\u011b nefunguje a \u017e\u00e1dn\u00fd podobn\u00fd trik v\u00e1s v krajin\u011b p\u0159ed bou\u0159kou neuchr\u00e1n\u00ed. A je\u0161t\u011b komi\u010dt\u011bj\u0161\u00ed je, kdy\u017e Libu\u0161ka \u0160afr\u00e1nkov\u00e1 pronese, \u017ee: \u201etu nen\u00ed elektrick\u00e9 veden\u00ed, kam by se mohl zapojit hromosvod, kter\u00fd by tu byl t\u00edm p\u00e1dem nefunk\u010dn\u00ed\u201c. Hromosvod opravdu nepot\u0159ebuje ke sv\u00e9 \u010dinnosti elektrick\u00e9 veden\u00ed, je to sice za\u0159\u00edzen\u00ed, jeho\u017e revize zaji\u0161\u0165uje elektrik\u00e1\u0159, ale hromosvody nemaj\u00ed s elektrickou rozvodnou s\u00edt\u00ed ani s fotovoltaikou na st\u0159e\u0161e nic spole\u010dn\u00e9ho. P\u0159esto se revize hromosvod\u016f mus\u00ed prov\u00e1d\u011bt, proto\u017ee hromosvod m\u016f\u017ee b\u00fdt mechanicky po\u0161kozen\u00fd, a v tu chv\u00edli svou funkci p\u0159est\u00e1v\u00e1 plnit. Co je vlastn\u011b na hromosvodu tak z\u00e1sadn\u00edho, a pro\u010d se tohoto za\u0159\u00edzen\u00ed t\u00fdkaj\u00ed revizn\u00ed \u010dinnosti v pravideln\u00fdch intervalech, a tak\u00e9 po ka\u017ed\u00e9m \u00faderu blesku?Hodnota elektrick\u00e9ho odporu \u2013 v okam\u017eiku, kdy blesk zas\u00e1hne hromosvod, kter\u00fd je zcela z\u00e1m\u011brn\u011b vzty\u010den nad nejvy\u0161\u0161\u00ed bod budovy, proch\u00e1z\u00ed bleskov\u00fd v\u00fdboj cestou nejkrat\u0161\u00edho odporu po hromosvodov\u00e9m dr\u00e1tu sm\u011brem k zemi. Je-li hromosvod konstruov\u00e1n spr\u00e1vn\u011b a je nepo\u0161kozen\u00fd, klade blesku pouze minim\u00e1ln\u00ed odpor a blesk nem\u00e1 tendenci proch\u00e1zet jinou cestou, p\u0159ev\u00e1\u017en\u011b po kovov\u00fdch \u010d\u00e1stech stavebn\u00ed konstrukce. Pokud je ale hromosvod po\u0161kozen\u00fd, p\u0159echodov\u00fd odpor se v tomto m\u00edst\u011b zv\u00fd\u0161\u00ed, na\u010de\u017e blesk dok\u00e1\u017ee hromosvod roz\u017ehavit a je-li v jeho bl\u00edzkosti ho\u0159lav\u00fd p\u0159edm\u011bt, nap\u0159\u00edklad d\u0159ev\u011bn\u00e9 bedn\u011bn\u00ed, snadno jej zap\u00e1l\u00ed. Blesk tak\u00e9 m\u016f\u017ee z hromosvodu p\u0159esko\u010dit na kovov\u00e9 z\u00e1bradl\u00ed, okenn\u00ed parapet, \u0159\u00edmsu, ant\u00e9nn\u00ed svod a dal\u0161\u00ed kovov\u00e9 \u010d\u00e1sti objektu a m\u016f\u017ee n\u011bkoho usmrtit.                                                                                                                                                                                                                                                                                                                                                                                                  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