{"id":5783,"date":"2025-05-15T17:19:49","date_gmt":"2025-05-15T09:19:49","guid":{"rendered":"https:\/\/kvhipot.com\/?p=5783"},"modified":"2025-05-15T17:20:35","modified_gmt":"2025-05-15T09:20:35","slug":"zvladnuti-zkousek-vysokonapetovym-vybojem-u-kabelu-11-kv","status":"publish","type":"post","link":"https:\/\/kvhipot.com\/cs\/mastering-cable-hipot-testing-for-11kv-cable\/","title":{"rendered":"Zvl\u00e1dnut\u00ed vysokonap\u011b\u0165ov\u00fdch zkou\u0161ek kabel\u016f o nap\u011bt\u00ed 11 kV"},"content":{"rendered":"<p>Ob\u00e1v\u00e1te se, \u017ee poruchy kabel\u016f naru\u0161\u00ed v\u00e1\u0161 provoz? Skryt\u00e9 vady izolace mohou v\u00e9st k n\u00e1kladn\u00fdm v\u00fdpadk\u016fm a bezpe\u010dnostn\u00edm rizik\u016fm, co\u017e p\u0159edstavuje velkou hlavu bolesti pro ka\u017ed\u00e9ho in\u017een\u00fdra.&nbsp;<strong>Hipotov\u00e9 zkou\u0161ky kabel\u016f jsou vysokonap\u011b\u0165ov\u00e9 zkou\u0161ky, kter\u00e9 ov\u011b\u0159uj\u00ed neporu\u0161enost izolace kabelu. Pom\u00e1haj\u00ed odhalit v\u00fdrobn\u00ed vady, po\u0161kozen\u00ed zp\u016fsoben\u00e9 instalac\u00ed nebo opot\u0159eben\u00ed, \u010d\u00edm\u017e zaji\u0161\u0165uj\u00ed spolehlivost a p\u0159edch\u00e1zej\u00ed neo\u010dek\u00e1van\u00fdm poruch\u00e1m ve va\u0161ich energetick\u00fdch syst\u00e9mech.<\/strong>&nbsp;Pro p\u0159esn\u00e9 posouzen\u00ed je z\u00e1sadn\u00ed porozum\u011bt specifik\u016fm zkou\u0161ek Hipot u r\u016fzn\u00fdch typ\u016f kabel\u016f. Pod\u00edvejme se na n\u011bkolik b\u011b\u017en\u00fdch sc\u00e9n\u00e1\u0159\u016f, kter\u00e9 v\u00e1m pomohou zajistit, \u017ee va\u0161e kabely spl\u0148uj\u00ed po\u017eadavky, a p\u0159edej\u00edt tak budouc\u00edm probl\u00e9m\u016fm.<\/p><h2 class=\"wp-block-heading\">Zkou\u0161ka Hipot u kabelu 11 kV?<\/h2><p>M\u00e1te obavy o spolehlivost sv\u00fdch kabel\u016f o nap\u011bt\u00ed 11 kV? Vadn\u00e1 izolace m\u016f\u017ee zp\u016fsobit n\u00e1hl\u00e9 poruchy, kter\u00e9 vedou k v\u00fdznamn\u00fdm v\u00fdpadk\u016fm v dod\u00e1vk\u00e1ch a vysok\u00fdm n\u00e1klad\u016fm na opravy.&nbsp;<strong>U kabelu o nap\u011bt\u00ed 11 kV spo\u010d\u00edv\u00e1 zkou\u0161ka Hipot obvykle v p\u0159iveden\u00ed vy\u0161\u0161\u00edho ne\u017e b\u011b\u017en\u00e9ho nap\u011bt\u00ed po stanovenou dobu. P\u0159esn\u00e1 zku\u0161ebn\u00ed hodnota nap\u011bt\u00ed z\u00e1vis\u00ed na typu kabelu, jeho st\u00e1\u0159\u00ed a platn\u00fdch norm\u00e1ch (nap\u0159\u00edklad IEC nebo IEEE), ale je navr\u017eena tak, aby izolaci vystavila z\u00e1t\u011b\u017ei.<\/strong>&nbsp;! Kdy\u017e my ve spole\u010dnosti KV Hipot spolupracujeme s klienty, jako je Muhammad, kter\u00fd \u0159\u00edd\u00ed kl\u00ed\u010dov\u00e9 energetick\u00e9 projekty, je integrita kabel\u016f o nap\u011bt\u00ed 11 kV naprosto z\u00e1sadn\u00ed. Zkou\u0161ka Hipot u t\u011bchto kabel\u016f p\u0159edstavuje nedestruktivn\u00ed zp\u016fsob, jak zajistit, \u017ee izolace vydr\u017e\u00ed b\u011b\u017en\u00e1 provozn\u00ed nam\u00e1h\u00e1n\u00ed i p\u0159\u00edpadn\u00e1 p\u0159ep\u011bt\u00ed. Postup zkou\u0161ky zahrnuje:<\/p><ol><li><strong>Izolace:<\/strong>&nbsp;Bezpe\u010dn\u00e9 odpojen\u00ed kabelu od v\u0161ech za\u0159\u00edzen\u00ed.<\/li>\n\n<li><strong>Uzemn\u011bn\u00ed:<\/strong>&nbsp;Zajistit, aby v\u0161echny ostatn\u00ed vodi\u010de a st\u00edn\u011bn\u00ed kabelu byly \u0159\u00e1dn\u011b uzemn\u011bny.<\/li>\n\n<li><strong>Nap\u00e1jec\u00ed nap\u011bt\u00ed:<\/strong>&nbsp;Postupn\u00e9 p\u0159iv\u00e1d\u011bn\u00ed stanoven\u00e9ho zku\u0161ebn\u00edho nap\u011bt\u00ed (st\u0159\u00eddav\u00e9ho nebo stejnosm\u011brn\u00e9ho) v\u017edy na jeden vodi\u010d. U nov\u00fdch kabel\u016f XLPE o nap\u011bt\u00ed 11 kV se zku\u0161ebn\u00ed nap\u011bt\u00ed p\u0159i st\u0159\u00eddav\u00e9 zkou\u0161ce Hipot m\u016f\u017ee pohybovat v rozmez\u00ed p\u0159ibli\u017en\u011b 22 kV a\u017e 30 kV po dobu n\u011bkolika minut, zat\u00edmco zku\u0161ebn\u00ed nap\u011bt\u00ed p\u0159i stejnosm\u011brn\u00e9 zkou\u0161ce Hipot m\u016f\u017ee b\u00fdt v\u00fdrazn\u011b vy\u0161\u0161\u00ed, mo\u017en\u00e1 3 a\u017e 5n\u00e1sobek jmenovit\u00e9ho nap\u011bt\u00ed f\u00e1ze v\u016f\u010di zemi dan\u00e9ho kabelu. P\u0159i \u00fadr\u017ebov\u00fdch zkou\u0161k\u00e1ch se \u010dasto pou\u017e\u00edvaj\u00ed m\u00edrn\u011b ni\u017e\u0161\u00ed nap\u011bt\u00ed. Pro p\u0159esn\u00e9 hodnoty je nezbytn\u00e9 nahl\u00e9dnout do p\u0159\u00edslu\u0161n\u00fdch mezin\u00e1rodn\u00edch nebo m\u00edstn\u00edch norem. \u00davahy ohledn\u011b zkou\u0161ek kabel\u016f 11 kV \u2013 typick\u00fd rozsah (pouze orienta\u010dn\u00ed \u00fadaje)<strong>Typ testu<\/strong> st\u0159\u00eddav\u00fd proud (AC), stejnosm\u011brn\u00fd proud (DC) nebo VLF (velmi n\u00edzk\u00e1 frekvence) \u2013 z\u00e1le\u017e\u00ed na norm\u011b a kabelu <strong>Nov\u00fd kabel (st\u0159\u00eddav\u00fd proud)<\/strong>P\u0159ij\u00edmac\u00ed zkou\u0161ky po instalaci 2Uo a\u017e 3Uo (Uo = f\u00e1ze\u2013zem) <strong>Nov\u00fd kabel (DC)<\/strong>Historicky b\u011b\u017en\u00e9 rozlo\u017een\u00ed nap\u011bt\u00ed se li\u0161\u00ed v rozmez\u00ed 3Uo a\u017e 5Uo <strong>D\u00e9lka testu<\/strong> Dostate\u010dn\u00e1 doba pro vytvrzen\u00ed izolace: 1 a\u017e 60 minut <strong>Standardn\u00ed<\/strong> IEC 60502-2, \u0159ada IEEE 400, specifikace m\u00edstn\u00edho dodavatele energie. \u0158i\u010fte se konkr\u00e9tn\u00ed normou. Nezapome\u0148te, \u017ee se jedn\u00e1 o obecn\u00e9 pokyny. V\u017edy se \u0159i\u010fte doporu\u010den\u00edmi v\u00fdrobce a p\u0159\u00edslu\u0161n\u00fdmi zku\u0161ebn\u00edmi normami pro v\u00e1\u0161 konkr\u00e9tn\u00ed kabel 11 kV.<\/li><\/ol><h2 class=\"wp-block-heading\">V \u010dem spo\u010d\u00edv\u00e1 test HIPOT u kabel\u016f o nap\u011bt\u00ed 13,8 kV?<\/h2><p>Zkou\u0161ka Hipot (High Potential) u kabel\u016f je zkou\u0161ka dielektrick\u00e9 pevnosti, kter\u00e1 se prov\u00e1d\u00ed za \u00fa\u010delem ov\u011b\u0159en\u00ed neporu\u0161enosti izolace kabelu. Zaji\u0161\u0165uje, \u017ee kabel vydr\u017e\u00ed p\u0159ep\u011bt\u00ed, s nimi\u017e se m\u016f\u017ee b\u011bhem sv\u00e9 \u017eivotnosti setkat, ani\u017e by do\u0161lo k jeho po\u0161kozen\u00ed. Tato zkou\u0161ka je nezbytn\u00e1 po v\u00fdrob\u011b, instalaci nebo oprav\u011b.<\/p><p>Funguj\u00ed va\u0161e kabely o nap\u011bt\u00ed 13,8 kV optim\u00e1ln\u011b? Slab\u00e1 m\u00edsta v izolaci t\u011bchto st\u0159edonap\u011b\u0165ov\u00fdch kabel\u016f mohou v\u00e9st k neo\u010dek\u00e1van\u00fdm poruch\u00e1m, kter\u00e9 maj\u00ed dopad na spolehlivost syst\u00e9mu a bezpe\u010dnost provozu.&nbsp;<strong>Zkou\u0161ka Hipot u kabel\u016f na 13,8 kV se \u0159\u00edd\u00ed stejn\u00fdm principem: p\u0159iveden\u00edm vysok\u00e9ho nap\u011bt\u00ed za \u00fa\u010delem kontroly izolace. Zku\u0161ebn\u00ed nap\u011bt\u00ed se odv\u00edj\u00ed od jmenovit\u00e9ho nap\u011bt\u00ed kabelu a p\u0159\u00edslu\u0161n\u00e9 normy; obecn\u011b je vy\u0161\u0161\u00ed ne\u017e u kabel\u016f na 11 kV.<\/strong>&nbsp;<\/p><p>Pro in\u017een\u00fdry a vedouc\u00ed projekt\u016f je zaji\u0161t\u011bn\u00ed integrity kabel\u016f o nap\u011bt\u00ed 13,8 kV z\u00e1sadn\u00ed pro nep\u0159etr\u017eit\u00e9 nap\u00e1jen\u00ed. Zkou\u0161ka Hipot poskytuje jistotu ohledn\u011b izola\u010dn\u00edho syst\u00e9mu kabelu. Podobn\u011b jako u kabel\u016f 11 kV zahrnuje tento proces pe\u010dliv\u00e9 izolov\u00e1n\u00ed, uzemn\u011bn\u00ed a \u0159\u00edzen\u00e9 p\u0159iv\u00e1d\u011bn\u00ed nap\u011bt\u00ed. Kl\u00ed\u010dov\u00fd rozd\u00edl spo\u010d\u00edv\u00e1 ve velikosti zku\u0161ebn\u00edho nap\u011bt\u00ed. Nap\u0159\u00edklad:<\/p><ul><li>Nov\u00fd kabel s izolac\u00ed XLPE o nap\u011bt\u00ed 13,8 kV (f\u00e1ze-f\u00e1ze) m\u016f\u017ee b\u00fdt podroben vysokonap\u011b\u0165ov\u00e9 zkou\u0161ce st\u0159\u00eddav\u00fdm proudem (Hipot) p\u0159i nap\u011bt\u00ed odvozen\u00e9m od jeho jmenovit\u00e9ho nap\u011bt\u00ed f\u00e1ze-zem (13,8 kV \/ \u221a3 \u2248 7,97 kV). Zku\u0161ebn\u00ed nap\u011bt\u00ed pro p\u0159ej\u00edmac\u00ed zkou\u0161ky se m\u016f\u017ee pohybovat v rozmez\u00ed 2 a\u017e 3n\u00e1sobku t\u00e9to hodnoty.<\/li>\n\n<li>Zku\u0161ebn\u00ed nap\u011bt\u00ed p\u0159i zkou\u0161k\u00e1ch Hipot v stejnosm\u011brn\u00e9m proudu by bylo \u00fam\u011brn\u011b vy\u0161\u0161\u00ed. Je z\u00e1sadn\u00ed zvolit spr\u00e1vn\u00e9 zku\u0161ebn\u00ed nap\u011bt\u00ed, aby nedo\u0161lo k nadm\u011brn\u00e9mu nam\u00e1h\u00e1n\u00ed kabelu, zejm\u00e9na u star\u0161\u00edch kabel\u016f nebo p\u0159i prov\u00e1d\u011bn\u00ed \u00fadr\u017ebov\u00fdch zkou\u0161ek. Zkou\u0161ka Hipot s velmi n\u00edzkou frekvenc\u00ed (VLF) je rovn\u011b\u017e obl\u00edbenou a \u00fa\u010dinnou metodou pro ter\u00e9nn\u00ed zkou\u0161ky kabel\u016f s extrudovan\u00fdm dielektrikem, jako je XLPE, jeliko\u017e je u dlouh\u00fdch kabel\u016f prakti\u010dt\u011bj\u0161\u00ed ne\u017e zkou\u0161ky st\u0159\u00eddav\u00fdm proudem o s\u00ed\u0165ov\u00e9 frekvenci a pro tento typ izolace je \u010dasto pova\u017eov\u00e1na za m\u00e9n\u011b agresivn\u00ed ne\u017e zkou\u0161ka stejnosm\u011brn\u00fdm proudem. Podrobnosti o parametrech pro v\u00fdznam zkou\u0161ky Hipot kabel\u016f p\u0159i 13,8 kV <strong>Typ kabelu<\/strong> XLPE, EPR, PILC atd. Izola\u010dn\u00ed materi\u00e1l ovliv\u0148uje volbu typu zkou\u0161ky (st\u0159\u00eddav\u00fd proud\/stejnosm\u011brn\u00fd proud\/VLF)<strong>Zku\u0161ebn\u00ed norma<\/strong> Normy \u0159ady IEEE 400, IEC 60502-2 nebo m\u00edstn\u00ed energetick\u00e1 spole\u010dnost Definuj\u00ed nap\u011bt\u00ed, dobu trv\u00e1n\u00ed a krit\u00e9ria pro spln\u011bn\u00ed\/nespln\u011bn\u00ed po\u017eadavk\u016f <strong>Zku\u0161ebn\u00ed nap\u011bt\u00ed<\/strong> Kabely s nap\u011bt\u00edm vy\u0161\u0161\u00edm ne\u017e 11 kV, specifick\u00e9 pro danou normu: Je nutn\u00e9 prov\u00e9st z\u00e1t\u011b\u017eovou zkou\u0161ku izolace, ani\u017e by do\u0161lo k jej\u00edmu po\u0161kozen\u00ed.<strong>Prosp\u011bl\/Neprosp\u011bl<\/strong> \u017d\u00e1dn\u00e1 porucha (p\u0159eskok\/prora\u017een\u00ed), svodov\u00fd proud \u2013 ukazuje stav izolace <strong>Bezpe\u010dnost<\/strong> Z d\u016fvodu vysok\u00fdch nap\u011bt\u00ed je nezbytn\u00e9, aby pr\u00e1ce prov\u00e1d\u011bl vy\u0161kolen\u00fd person\u00e1l a byly dodr\u017eov\u00e1ny spr\u00e1vn\u00e9 postupy<\/li><\/ul><p>Ve spole\u010dnosti KV Hipot v\u017edy doporu\u010dujeme z\u00e1kazn\u00edk\u016fm, aby se p\u0159i zkou\u0161k\u00e1ch kabel\u016f o nap\u011bt\u00ed 13,8 kV striktn\u011b \u0159\u00eddili nejnov\u011bj\u0161\u00edmi verzemi p\u0159\u00edslu\u0161n\u00fdch norem a pokyn\u016f v\u00fdrobc\u016f kabel\u016f.<\/p><h2 class=\"wp-block-heading\">Jak\u00fd je rozsah nap\u011bt\u00ed pro vysokonap\u011b\u0165ovou zkou\u0161ku?<\/h2><p>Zaj\u00edm\u00e1 v\u00e1s, jak\u00e9 nap\u011bt\u00ed je spr\u00e1vn\u00e9 pro zkou\u0161ku Hipot? Pou\u017eit\u00ed nespr\u00e1vn\u00e9ho nap\u011bt\u00ed m\u016f\u017ee po\u0161kodit kabely nebo v\u00e9st k zav\u00e1d\u011bj\u00edc\u00edm v\u00fdsledk\u016fm, co\u017e p\u0159edstavuje z\u00e1sadn\u00ed probl\u00e9m z hlediska zaji\u0161t\u011bn\u00ed integrity syst\u00e9mu.&nbsp;<strong>Pro zkou\u0161ky Hipot neexistuje jedin\u00fd jednotn\u00fd rozsah nap\u011bt\u00ed. Z\u00e1vis\u00ed to na jmenovit\u00e9m nap\u011bt\u00ed kabelu, typu izolace, st\u00e1\u0159\u00ed, konkr\u00e9tn\u00ed zku\u0161ebn\u00ed norm\u011b (nap\u0159. IEEE, IEC) a na tom, zda se jedn\u00e1 o zkou\u0161ku st\u0159\u00eddav\u00fdm proudem, stejnosm\u011brn\u00fdm proudem nebo VLF.<\/strong>&nbsp;<\/p><p>V\u00fdb\u011br vhodn\u00e9ho nap\u011bt\u00ed pro zkou\u0161ku Hipot je pravd\u011bpodobn\u011b nejd\u016fle\u017eit\u011bj\u0161\u00edm krokem. Obecn\u011b plat\u00ed, \u017ee p\u0159i p\u0159ej\u00edmkov\u00fdch zkou\u0161k\u00e1ch nov\u00fdch kabel\u016f se pou\u017e\u00edvaj\u00ed vy\u0161\u0161\u00ed nap\u011bt\u00ed ne\u017e p\u0159i \u00fadr\u017ebov\u00fdch zkou\u0161k\u00e1ch star\u0161\u00edch kabel\u016f. C\u00edlem je p\u0159iv\u00e9st nap\u011bt\u00ed v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e je b\u011b\u017en\u00e9 provozn\u00ed nap\u011bt\u00ed, av\u0161ak ni\u017e\u0161\u00ed ne\u017e je mez pr\u016frazu izolace, pokud se nejedn\u00e1 o zku\u0161ebn\u00ed zkou\u0161ku a\u017e do poruchy (co\u017e je p\u0159i rutinn\u00edch zkou\u0161k\u00e1ch vz\u00e1cn\u00e9). Zde je p\u0159ehled faktor\u016f ovliv\u0148uj\u00edc\u00edch nap\u011bt\u00ed:<\/p><ul><li><strong>Jmenovit\u00e9 nap\u011bt\u00ed (Uo\/U):<\/strong>&nbsp;Z\u00e1kladn\u00ed princip. Uo je nap\u011bt\u00ed mezi f\u00e1z\u00ed a zem\u00ed, U je nap\u011bt\u00ed mezi f\u00e1zemi.<\/li>\n\n<li><strong>Izola\u010dn\u00ed materi\u00e1l:<\/strong>&nbsp;XLPE, EPR, PILC atd. se p\u0159i nam\u00e1h\u00e1n\u00ed st\u0159\u00eddav\u00fdm a stejnosm\u011brn\u00fdm proudem chovaj\u00ed odli\u0161n\u011b.<\/li>\n\n<li><strong>Typ zkou\u0161ky a norma:<\/strong><ul><li><strong>AC Hipot:<\/strong>&nbsp;Pro tov\u00e1rn\u00ed a p\u0159ej\u00edmac\u00ed zkou\u0161ky se \u010dasto pou\u017e\u00edv\u00e1 hodnota 2 a\u017e 3,5n\u00e1sobku Uo. Pro \u00fadr\u017ebu je tato hodnota ni\u017e\u0161\u00ed.<\/li>\n\n<li><strong>DC Hipot:<\/strong>&nbsp;V minulosti se u XLPE pou\u017e\u00edvalo 3 a\u017e 5n\u00e1sobek Uo, av\u0161ak zkou\u0161ky stejnosm\u011brn\u00fdm proudem na zest\u00e1rl\u00fdch extrudovan\u00fdch dielektrik\u00e1ch jsou nyn\u00ed v n\u011bkter\u00fdch norm\u00e1ch m\u00e9n\u011b preferov\u00e1ny kv\u016fli riziku akumulace prostorov\u00e9ho n\u00e1boje. U PILC je to st\u00e1le b\u011b\u017en\u00e9.<\/li>\n\n<li><strong>VLF Hipot:<\/strong>&nbsp;Zku\u0161ebn\u00ed nap\u011bt\u00ed jsou rovn\u011b\u017e n\u00e1sobky hodnoty Uo, kter\u00e9 obvykle doporu\u010duje norma IEEE 400.2 pro konkr\u00e9tn\u00ed pr\u016fb\u011bhy (nap\u0159. sinusov\u00e9, kosinusov\u011b-obd\u00e9ln\u00edkov\u00e9).<\/li><\/ul><\/li>\n\n<li><strong>Stav kabelu:<\/strong>&nbsp;Nov\u00e9 kabely vydr\u017e\u00ed vy\u0161\u0161\u00ed zku\u0161ebn\u00ed nap\u011bt\u00ed ne\u017e star\u00e9 nebo opraven\u00e9 kabely. T\u0159\u00edda nap\u011bt\u00ed P\u0159\u00edklad Typick\u00e1 zkou\u0161ka st\u0159\u00eddav\u00fdm proudem u nov\u00e9ho kabelu (orienta\u010dn\u00ed hodnota) Typick\u00e1 zkou\u0161ka stejnosm\u011brn\u00fdm proudem u nov\u00e9ho kabelu (orienta\u010dn\u00ed hodnota) Zkou\u0161ka VLF (orienta\u010dn\u00ed hodnota, nap\u0159. IEEE 400.2)N\u00edzk\u00e9 nap\u011bt\u00ed (35 kV) Velmi specifick\u00e9 pro danou normu Velmi specifick\u00e9 pro danou normu St\u00e1le \u010dast\u011bji pou\u017e\u00edvan\u00e9, specifick\u00e9 pro danou normu<\/li><\/ul><p><\/p><p>Ve spole\u010dnosti KV Hipot klademe d\u016fraz na to, \u017ee pro stanoven\u00ed spr\u00e1vn\u00e9ho rozsahu zku\u0161ebn\u00edho nap\u011bt\u00ed je nezbytn\u00e9 vych\u00e1zet z \u00fadaj\u016f konkr\u00e9tn\u00edho v\u00fdrobce kabel\u016f a z p\u0159\u00edslu\u0161n\u00fdch mezin\u00e1rodn\u00edch \u010di m\u00edstn\u00edch norem (nap\u0159. IEC 60502, \u0159ada IEEE 400). T\u00edm je zaji\u0161t\u011bna smyslupln\u00e1 zkou\u0161ka, p\u0159i n\u00ed\u017e nedoch\u00e1z\u00ed k nadm\u011brn\u00e9mu nam\u00e1h\u00e1n\u00ed izolace kabelu.<\/p><p>Zvl\u00e1dnut\u00ed vysokonap\u011b\u0165ov\u00fdch zkou\u0161ek kabel\u016f je kl\u00ed\u010dov\u00e9 pro zaji\u0161t\u011bn\u00ed spolehlivosti elektrick\u00fdch syst\u00e9m\u016f. Spr\u00e1vn\u00e9 postupy a volba nap\u011bt\u00ed p\u0159edch\u00e1zej\u00ed poruch\u00e1m a zaji\u0161\u0165uj\u00ed bezpe\u010dnost a nep\u0159etr\u017eitost provozu va\u0161ich projekt\u016f.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hipotov\u00e9 zkou\u0161ky kabel\u016f jsou vysokonap\u011b\u0165ov\u00e9 zkou\u0161ky, kter\u00e9 ov\u011b\u0159uj\u00ed neporu\u0161enost izolace kabelu. Pom\u00e1haj\u00ed odhalit v\u00fdrobn\u00ed vady, po\u0161kozen\u00ed p\u0159i instalaci nebo opot\u0159eben\u00ed, \u010d\u00edm\u017e zaji\u0161\u0165uj\u00ed spolehlivost a p\u0159edch\u00e1zej\u00ed neo\u010dek\u00e1van\u00fdm poruch\u00e1m ve va\u0161ich energetick\u00fdch syst\u00e9mech.<\/p>","protected":false},"author":1,"featured_media":5754,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[35],"tags":[],"_links":{"self":[{"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/posts\/5783"}],"collection":[{"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/comments?post=5783"}],"version-history":[{"count":3,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/posts\/5783\/revisions"}],"predecessor-version":[{"id":5788,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/posts\/5783\/revisions\/5788"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/media\/5754"}],"wp:attachment":[{"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/media?parent=5783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/categories?post=5783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kvhipot.com\/cs\/wp-json\/wp\/v2\/tags?post=5783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}