[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.litaxs.cz\/bez-hromosvodu-zbytecne-riskujete\/#Article","mainEntityOfPage":"https:\/\/www.litaxs.cz\/bez-hromosvodu-zbytecne-riskujete\/","headline":"Bez hromosvodu zbyte\u010dn\u011b riskujete","name":"Bez hromosvodu zbyte\u010dn\u011b riskujete","description":"Vyn\u00e1lez hromosvodu poch\u00e1z\u00ed z obdob\u00ed baroka, zaslou\u017eil se o n\u011bj Prokop Divi\u0161, tedy jde o \u010desk\u00fd objev, kter\u00fd chr\u00e1n\u00ed majetek a v z\u00e1sad\u011b i \u017eivoty lid\u00ed na cel\u00e9m sv\u011bt\u011b. Je to sice velice primitivn\u00ed za\u0159\u00edzen\u00ed, ov\u0161em nelze mu po str\u00e1nce funk\u010dnosti nic vytknout ani dnes, po n\u011bkolika stovk\u00e1ch let. Hromosvod je zapot\u0159eb\u00ed podrobovat pravideln\u00fdm reviz\u00edm,...","datePublished":"2025-04-12","dateModified":"2025-04-12","author":{"@type":"Person","@id":"https:\/\/www.litaxs.cz\/author\/#Person","name":"","url":"https:\/\/www.litaxs.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/046c8368865b87ac6ea06cde0e0a80b91304a43fe31de210702ad59bbd9a1974?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/046c8368865b87ac6ea06cde0e0a80b91304a43fe31de210702ad59bbd9a1974?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"litaxs.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.litaxs.cz\/wp-content\/uploads\/lightning-1625550_640_4.jpg","url":"https:\/\/www.litaxs.cz\/wp-content\/uploads\/lightning-1625550_640_4.jpg","height":0,"width":0},"url":"https:\/\/www.litaxs.cz\/bez-hromosvodu-zbytecne-riskujete\/","about":["Podnik\u00e1n\u00ed"],"wordCount":430,"articleBody":"   Vyn\u00e1lez hromosvodu poch\u00e1z\u00ed z obdob\u00ed baroka, zaslou\u017eil se o n\u011bj Prokop Divi\u0161, tedy jde o \u010desk\u00fd objev, kter\u00fd chr\u00e1n\u00ed majetek a v z\u00e1sad\u011b i \u017eivoty lid\u00ed na cel\u00e9m sv\u011bt\u011b. Je to sice velice primitivn\u00ed za\u0159\u00edzen\u00ed, ov\u0161em nelze mu po str\u00e1nce funk\u010dnosti nic vytknout ani dnes, po n\u011bkolika stovk\u00e1ch let. Hromosvod je zapot\u0159eb\u00ed podrobovat pravideln\u00fdm reviz\u00edm, nebo\u0165 je toto za\u0159\u00edzen\u00ed vystavov\u00e1no atmosf\u00e9rick\u00fdm vliv\u016fm a bou\u0159kov\u00e9 \u010dinnosti a v n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee b\u00fdt hromosvod po\u0161kozen i stavebn\u00ed \u010dinnost\u00ed, nap\u0159\u00edklad p\u0159i v\u00fdm\u011bn\u011b st\u0159e\u0161n\u00ed krytiny, zateplov\u00e1n\u00ed fas\u00e1dy apod. Co je vlastn\u011b na hromosvodech zraniteln\u00e9ho?J\u00edma\u010d blesku \u2013 p\u0159i z\u00e1sahu bleskem nebo v d\u016fsledku koroze \u010di mechanick\u00e9ho po\u0161kozen\u00ed m\u016f\u017ee b\u00fdt bleskov\u00fd j\u00edma\u010d (horn\u00ed ty\u010d na konci hromosvodu) \u0161patn\u011b funk\u010dn\u00ed, m\u016f\u017ee se p\u0159i dal\u0161\u00edm z\u00e1sahu blesku odlomit a bleskov\u00fd v\u00fdboj pak m\u016f\u017ee b\u00fdt sveden jinou cestou, ne\u017e po dr\u00e1tov\u00e9m svodu do zem\u011b.Svod -dr\u00e1tov\u00fd svod sice m\u016f\u017ee vytv\u00e1\u0159et zd\u00e1nliv\u00fd dojem, \u017ee je to masivn\u00ed ocelov\u00fd prvek, jen\u017ee kdy\u017e do n\u011bj ude\u0159\u00ed blesk, m\u016f\u017ee se v tomto m\u00edst\u011b doslova roztavit. Svody lze tak\u00e9 docela snadno po\u0161kodit nebo p\u0159e\u0159ezat \u00fahlovou bruskou p\u0159i stavebn\u00edch prac\u00edch, jako jsou fas\u00e1dn\u00ed obklady, v\u00fdm\u011bny \u010di instalace okenn\u00edch parapet\u016f nebo st\u0159e\u0161n\u00edch okap\u016f.Dr\u017e\u00e1ky svodu \u2013 svod mus\u00ed b\u00fdt upevn\u011bn tak, aby se nedot\u00fdkal kovov\u00fdch \u010di d\u0159ev\u011bn\u00fdch \u010d\u00e1st\u00ed objektu, kter\u00e9 by pr\u016fchod blesku mohl roz\u017ehavit a zap\u00e1lit. Proto je t\u0159eba tak\u00e9 kontrolovat pevnost dr\u017e\u00e1k\u016f svodu. Uzemn\u011bn\u00ed \u2013 hromosvody jsou svedeny do zem\u011b a zemnic\u00ed prvky tu podl\u00e9haj\u00ed korozi, proto je tak\u00e9 nutn\u00e9 pravideln\u011b kontrolovat elektrik\u00e1\u0159em z Prahy 8 jejich stav, zda dob\u0159e odv\u00e1d\u00ed blesky do zem\u011b nejkrat\u0161\u00ed cestou, bez zbyte\u010dn\u00e9ho p\u0159echodov\u00e9ho odporu. Hromosvod by bez uzemn\u011bn\u00ed nemohl plnit svou funkci a byl by na dom\u011b \u00fapln\u011b k ni\u010demu. V z\u00e1sad\u011b tu plat\u00ed nepsan\u00e9 pravidlo \u2013 je-li jak\u00e1koli \u010d\u00e1st hromosvodu po\u0161kozena, zvy\u0161uje se t\u00edm pravd\u011bpodobnost po\u017e\u00e1ru objektu a je to podobn\u00e9, jako kdy\u017e tu \u017e\u00e1dn\u00fd hromosvod nen\u00ed, proto je nutn\u00e9 prov\u00e1d\u011bt revize za\u0159\u00edzen\u00ed v pravideln\u00fdch intervalech a tak\u00e9 po ka\u017ed\u00e9m z\u00e1sahu hromosvodu bleskem.                                                                                                                                                                                                                                                                                                                                                                                          5\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Bez hromosvodu zbyte\u010dn\u011b riskujete","item":"https:\/\/www.litaxs.cz\/bez-hromosvodu-zbytecne-riskujete\/#breadcrumbitem"}]}]