{"id":2154,"date":"2025-03-02T16:36:56","date_gmt":"2025-03-02T08:36:56","guid":{"rendered":"https:\/\/led.amasly.com\/?p=2154"},"modified":"2025-03-06T23:04:38","modified_gmt":"2025-03-06T15:04:38","slug":"coal-mine-explosion-proof-inspection-standards","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/cs\/explosion-proof-equipment\/coal-mine-explosion-proof-inspection-standards\/","title":{"rendered":"Normy pro inspekce d\u016fln\u00edch za\u0159\u00edzen\u00ed odoln\u00fdch proti v\u00fdbuchu"},"content":{"rendered":"

Normy pro inspekce v uheln\u00fdch dolech odoln\u00fdch proti v\u00fdbuchu<\/strong><\/strong><\/h1>\n\n\n\n

I. Obecn\u00e1 ustanoven\u00ed:<\/strong><\/strong><\/h2>\n\n\n\n

    1. Za \u00fa\u010delem dal\u0161\u00edho prov\u00e1d\u011bn\u00ed \u201cBezpe\u010dnostn\u00edch p\u0159edpis\u016f pro uheln\u00e9 doly\u201d a norem a p\u0159edpis\u016f o nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00edch, zlep\u0161en\u00ed znalost\u00ed elektromechanik\u016f o fungov\u00e1n\u00ed nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed a usnadn\u011bn\u00ed zvl\u00e1dnut\u00ed pou\u017e\u00edv\u00e1n\u00ed norem v praxi, aby se pos\u00edlilo v\u011bdeck\u00e9 \u0159\u00edzen\u00ed nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed v hlubinn\u00fdch uheln\u00fdch dolech, zlep\u0161ila kvalita \u00fadr\u017eby, odstranila porucha elektrick\u00fdch za\u0159\u00edzen\u00ed a realizoval bezpe\u010dn\u00fd provoz elektrick\u00fdch za\u0159\u00edzen\u00ed, jsou formulov\u00e1na \u201cPravidla\u201d.<\/p>\n\n\n\n

    2. V\u0161echna elektrick\u00e1 za\u0159\u00edzen\u00ed v podzem\u00ed (v\u010detn\u011b mal\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed) mus\u00ed b\u00fdt vybr\u00e1na v souladu s po\u017eadavky \u010dl\u00e1nk\u016f 444 a 7 p\u0159edpis\u016f o bezpe\u010dnosti v uheln\u00fdch dolech.<\/p>\n\n\n\n

    3. Inspekto\u0159i nev\u00fdbu\u0161nosti na pln\u00fd \u00favazek mus\u00ed b\u00fdt vy\u0161koleni a p\u0159ezkou\u0161eni vy\u0161\u0161\u00edmi org\u00e1ny a mus\u00ed z\u00edskat osv\u011bd\u010den\u00ed o zp\u016fsobilosti. Inspekto\u0159i nev\u00fdbu\u0161nosti na \u010d\u00e1ste\u010dn\u00fd \u00favazek mus\u00ed absolvovat \u0161kolen\u00ed a p\u0159ezkou\u0161en\u00ed na \u00farovni dolu a z\u00edskat osv\u011bd\u010den\u00ed o zp\u016fsobilosti.<\/p>\n\n\n\n

    4. Nev\u00fdbu\u0161n\u00e1 elektrick\u00e1 za\u0159\u00edzen\u00ed mus\u00ed b\u00fdt p\u0159ed vstupem do vrtu zkontrolov\u00e1na inspektory na pln\u00fd \u00favazek, aby byla ov\u011b\u0159ena jejich \u201ccertifikace v\u00fdrobku\u201d, \u201ccertifikace nev\u00fdbu\u0161nosti\u201d, \u201cbezpe\u010dnostn\u00ed zna\u010dka d\u016fln\u00edho v\u00fdrobku\u201d a bezpe\u010dnostn\u00ed proveden\u00ed; teprve po \u00fasp\u011b\u0161n\u00e9m absolvov\u00e1n\u00ed kontroly a vyd\u00e1n\u00ed certifik\u00e1tu shody bude povolen vstup do vrtu. Po \u00fasp\u011b\u0161n\u00e9m absolvov\u00e1n\u00ed kontroly a vyd\u00e1n\u00ed osv\u011bd\u010den\u00ed o shod\u011b bude za\u0159\u00edzen\u00ed povoleno vstoupit do vrtu. Nev\u00fdbu\u0161n\u00e9 elektrick\u00e9 v\u00fdrobky pro pr\u016fmyslov\u00fd zku\u0161ebn\u00ed provoz mus\u00ed m\u00edt \u201cpovolen\u00ed k pr\u016fmyslov\u00fdm zkou\u0161k\u00e1m\u201d vydan\u00e9 odd\u011blen\u00edm dozoru a kontroly kvality a bezpe\u010dnostn\u00ed opat\u0159en\u00ed formulovan\u00e1 jednotkou, kter\u00e1 je pou\u017e\u00edv\u00e1, p\u0159ezkoum\u00e1 a odsouhlas\u00ed n\u00e1m\u011bstek gener\u00e1ln\u00edho \u0159editele pro d\u016fln\u00ed mechaniku a elektrotechniku, jinak jim nebude povolen vstup do vrtu.<\/p>\n\n\n\n

    5. Elektrick\u00e1 za\u0159\u00edzen\u00ed odoln\u00e1 proti v\u00fdbuchu pro zm\u011bnu jmenovit\u00e9 hodnoty pou\u017eit\u00ed a technick\u00e9 transformace mus\u00ed b\u00fdt schv\u00e1lena st\u00e1tn\u00edm dohledem nad kvalitou d\u016fln\u00edch v\u00fdrobk\u016f a inspek\u010dn\u00edmi odd\u011blen\u00edmi.<\/p>\n\n\n\n

    6. Provoz, \u00fadr\u017eba a opravy podzemn\u00edch nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed mus\u00ed spl\u0148ovat technick\u00e9 po\u017eadavky na nev\u00fdbu\u0161nost. Nev\u00fdbu\u0161n\u00e9 proveden\u00ed je po\u0161kozen\u00e9 elektrick\u00e9 za\u0159\u00edzen\u00ed, mus\u00ed b\u00fdt okam\u017eit\u011b \u0159e\u0161eno nebo vym\u011bn\u011bno, je p\u0159\u00edsn\u011b zak\u00e1z\u00e1no jej d\u00e1le pou\u017e\u00edvat.<\/p>\n\n\n\n

    7. \u00dadr\u017eba nev\u00fdbu\u0161n\u00e9ho pl\u00e1\u0161t\u011b mus\u00ed b\u00fdt prov\u00e1d\u011bna v souladu s \u201cP\u0159edpisy pro opravy nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed v uheln\u00fdch dolech\u201d a mus\u00ed b\u00fdt opravov\u00e1na jednotkou nebo v\u00fdrobcem, kter\u00fd z\u00edskal kvalifikaci pro nev\u00fdbu\u0161nou kontrolu.<\/p>\n\n\n\n

    8. Pos\u00edlit kontrolu nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch vlastnost\u00ed p\u0159i pou\u017eit\u00ed v podzem\u00ed:<\/p>\n\n\n\n

    (1) Pracovn\u00edci \u00fadr\u017eby (nev\u00fdbu\u0161n\u00ed inspekto\u0159i na \u010d\u00e1ste\u010dn\u00fd \u00favazek) nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed, kter\u00e1 spadaj\u00ed do jejich p\u016fsobnosti, mus\u00ed prov\u00e1d\u011bt kontrolu nev\u00fdbu\u0161n\u00fdch elektrick\u00fdch za\u0159\u00edzen\u00ed nejm\u00e9n\u011b jednou za sm\u011bnu.<\/p>\n\n\n\n

    (2) Nev\u00fdbu\u0161n\u00fd inspektor na pln\u00fd \u00favazek kontroluje nev\u00fdbu\u0161nou elektroinstalaci v dole s vysok\u00fdm obsahem plynu nebo v oblasti s vysok\u00fdm obsahem plynu v dole s n\u00edzk\u00fdm obsahem plynu nejm\u00e9n\u011b dvakr\u00e1t t\u00fddn\u011b. Nev\u00fdbu\u0161n\u00e1 elektroinstalace dol\u016f s n\u00edzkou koncentrac\u00ed plynu se kontroluje jednou t\u00fddn\u011b.<\/p>\n\n\n\n

    (3) Person\u00e1ln\u00ed obsazen\u00ed inspektor\u016f nev\u00fdbu\u0161nosti na pln\u00fd a \u010d\u00e1ste\u010dn\u00fd \u00favazek mus\u00ed odpov\u00eddat pot\u0159eb\u00e1m inspek\u010dn\u00ed \u010dinnosti v oblasti nev\u00fdbu\u0161nosti.<\/p>\n\n\n\n

  II. Obecn\u00e1 ustanoven\u00ed:<\/strong><\/strong><\/p>\n\n\n\n

    1. Nev\u00fdbu\u0161n\u00e1 elektrick\u00e1 za\u0159\u00edzen\u00ed (v\u010detn\u011b mal\u00fdch elektrick\u00fdch spot\u0159ebi\u010d\u016f), p\u0159i pou\u017eit\u00ed kabelu nesm\u00ed b\u00fdt \u00farove\u0148 nap\u011bt\u00ed vy\u0161\u0161\u00ed ne\u017e jeho jmenovit\u00e1 \u00farove\u0148 nap\u011bt\u00ed, jinak se pova\u017euje za ztracen\u00fd.<\/p>\n\n\n\n

    2. Pokud je svorka 9# nev\u00fdbu\u0161n\u00e9ho magnetick\u00e9ho sp\u00edna\u010de pou\u017e\u00edvan\u00e9ho v dolech s vysok\u00fdm obsahem plynu, uhl\u00ed a prominentn\u00edho plynu uzemn\u011bna nebo pokud je nev\u00fdbu\u0161n\u00fd pl\u00e1\u0161\u0165 z n\u011bjak\u00e9ho d\u016fvodu elektrizov\u00e1n, pova\u017euje se to za ztr\u00e1tu v\u00fdbuchu.<\/p>\n\n\n\n

    3. Pou\u017eit\u00ed sp\u00edna\u010d\u016f pro ovl\u00e1d\u00e1n\u00ed p\u0159\u00edvodn\u00edch a odvodn\u00edch elektrick\u00fdch veden\u00ed p\u0159\u00edchoz\u00edch a odchoz\u00edch za\u0159\u00edzen\u00ed se pova\u017euje za ztr\u00e1tu v\u00fdbu\u0161nin (s v\u00fdjimkou p\u0159\u00edstupu k rel\u00e9 detekce \u00faniku a nap\u00e1jen\u00ed \u0159\u00eddic\u00edho obvodu).<\/p>\n\n\n\n

4. V\u0161echna nev\u00fdbu\u0161n\u00e1 elektrick\u00e1 za\u0159\u00edzen\u00ed by m\u011bla b\u00fdt spravov\u00e1na v souladu s po\u017eadavky na nev\u00fdbu\u0161nost bez ohledu na to, kde jsou pou\u017e\u00edv\u00e1na v podzem\u00ed. <\/strong><\/strong><\/p>\n\n\n\n

III<\/strong>, nev\u00fdbu\u0161n\u00fd pl\u00e1\u0161\u0165 mus\u00ed m\u00edt z\u0159eteln\u00e9 nev\u00fdbu\u0161n\u00e9 zna\u010dky, bezpe\u010dnostn\u00ed zna\u010dky uhl\u00ed. Jedna z n\u00e1sleduj\u00edc\u00edch podm\u00ednek pro ztr\u00e1tu v\u00fdbuchu:<\/strong><\/strong><\/p>\n\n\n\n

    1. Pl\u00e1\u0161\u0165 m\u00e1 praskliny, otev\u0159en\u00e9 sv\u00e1ry, v\u00e1\u017en\u00e9 deformace (d\u00e9lka deformace je v\u011bt\u0161\u00ed ne\u017e 50 mm a hloubka konvexity a konk\u00e1vity je v\u011bt\u0161\u00ed ne\u017e 5 mm).<\/p>\n\n\n\n

    2. Nev\u00fdbu\u0161n\u00fd pl\u00e1\u0161\u0165 uvnit\u0159 i vn\u011b odizolovan\u00fd od rzi (tlou\u0161\u0165ka rzi 0,2 mm a v\u00edce).<\/p>\n\n\n\n

    3. Pr\u016fhledn\u00e1 deska pozorovac\u00edho otvoru (okna) nev\u00fdbu\u0161n\u00e9 komory (dutiny) je uvoln\u011bn\u00e1, rozbit\u00e1 nebo je pou\u017eito oby\u010dejn\u00e9 sklo.<\/p>\n\n\n\n

    4. nev\u00fdbu\u0161n\u00e1 za\u0159\u00edzen\u00ed nev\u00fdbu\u0161n\u00e1 dutina p\u0159\u00edmo skrz, vyjm\u011bte nev\u00fdbu\u0161nou rozvodnou sk\u0159\u00ed\u0148ku v nev\u00fdbu\u0161n\u00e9m izola\u010dn\u00edm sedle.<\/p>\n\n\n\n

5. Blokovac\u00ed za\u0159\u00edzen\u00ed je ne\u00fapln\u00e9, deforma\u010dn\u00ed po\u0161kozen\u00ed nem\u016f\u017ee hr\u00e1t roli blokov\u00e1n\u00ed.<\/p>\n\n\n\n

IV<\/strong>, nev\u00fdbu\u0161n\u00fd povrch by m\u011bl b\u00fdt udr\u017eov\u00e1n \u010dist\u00fd, neporu\u0161en\u00fd, mus\u00ed m\u00edt opat\u0159en\u00ed proti korozi.<\/strong><\/strong><\/h2>\n\n\n\n

    1. Konstruk\u010dn\u00ed parametry povrchu nev\u00fdbu\u0161n\u00e9ho spoje mus\u00ed spl\u0148ovat n\u00e1sleduj\u00edc\u00ed ustanoven\u00ed, jinak se pova\u017euje za ztr\u00e1tu v\u00fdbuchu:<\/p>\n\n\n\n

    (1) elektrick\u00e1 za\u0159\u00edzen\u00ed stacion\u00e1rn\u00ed \u010d\u00e1st nev\u00fdbu\u0161n\u00e9ho kloubov\u00e9ho povrchu, joystick a h\u0159\u00eddel a lo\u017eiskov\u00fd h\u0159\u00eddel nev\u00fdbu\u0161n\u00e9ho kloubov\u00e9ho povrchu a odpov\u00eddaj\u00edc\u00ed objem pl\u00e1\u0161t\u011b odpov\u00eddaj\u00edc\u00ed maxim\u00e1ln\u00ed v\u016fli mus\u00ed b\u00fdt v souladu s ustanoven\u00edmi tabulky I. Minim\u00e1ln\u00ed \u00fa\u010dinn\u00e1 d\u00e9lka rychlouz\u00e1v\u011bru typu dve\u0159\u00ed nen\u00ed 25 mm. Nev\u00fdbu\u0161n\u00fd kloubov\u00fd povrch rychloup\u00ednac\u00edho typu dve\u0159\u00ed o minim\u00e1ln\u00ed \u00fa\u010dinn\u00e9 d\u00e9lce nejm\u00e9n\u011b 25 mm.<\/p>\n\n\n\n

    (2) Pr\u016fm\u011brn\u00e1 drsnost povrchu nev\u00fdbu\u0161n\u00e9ho spoje nesm\u00ed b\u00fdt v\u011bt\u0161\u00ed ne\u017e 6,3 \u03bcm.<\/p>\n\n\n\n

    (3) \u017e\u00e1dn\u00e1 rez na povrchu izolace v\u00fdbuchu (t\u0159ela se bavln\u011bnou g\u00e1zou, st\u00e1le existuj\u00ed rezav\u00e9 skvrny pro rez, zat\u00edmco pouze zanech\u00e1v\u00e1 st\u00edn mraku, nepo\u010d\u00edt\u00e1 se jako rez).<\/p>\n\n\n\n

    (4) \u0160roubovan\u00e9 a upevn\u011bn\u00e9 povrchy izoluj\u00edc\u00ed od v\u00fdbuchu:<\/p>\n\n\n\n

    \u2460 \u0160rouby a pru\u017en\u00e9 podlo\u017eky mus\u00ed b\u00fdt kompletn\u00ed a dota\u017een\u00e9 (dota\u017een\u00ed do roviny podlo\u017eky je kvalifikovan\u00e9).<\/p>\n\n\n\n

    \u2461 specifikace pru\u017einov\u00e9 podlo\u017eky mus\u00ed b\u00fdt kompatibiln\u00ed se \u0161roubem, (ob\u010das se jednotliv\u00e9 pru\u017einov\u00e9 podlo\u017eky zlom\u00ed nebo ztrat\u00ed pru\u017enost, zkontrolujte v\u016fli proti v\u00fdbuchu, pokud nen\u00ed nad limit, vym\u011b\u0148te kvalifikovanou pru\u017einovou podlo\u017eku nen\u00ed ztr\u00e1ta v\u00fdbuchu).<\/p>\n\n\n\n

    \u2462 \u0160rouby nebo otvory pro \u0161rouby nemohou prokluzovat (s v\u00fdjimkou v\u00fdm\u011bny dlouh\u00fdch \u0161roub\u016f stejn\u00e9ho pr\u016fm\u011bru a upevn\u011bn\u00ed matic).<\/p>\n\n\n\n

    (iv) U \u0161roub\u016f a nepropustn\u00fdch otvor\u016f pro \u0161rouby by m\u011bla b\u00fdt osov\u00e1 d\u00e9lka zb\u00fdvaj\u00edc\u00edch z\u00e1vit\u016f na \u0161roubech a otvorech pro \u0161rouby po uta\u017een\u00ed v\u011bt\u0161\u00ed ne\u017e 1,5n\u00e1sobek tlou\u0161\u0165ky pru\u017en\u00fdch podlo\u017eek; tlou\u0161\u0165ka kolem otvor\u016f pro \u0161rouby a na jejich dn\u011b by m\u011bla b\u00fdt v\u011bt\u0161\u00ed ne\u017e 3 mm.<\/p>\n\n\n\n

    \u2464 Specifikace \u0161roub\u016f a matic ve stejn\u00e9 \u010d\u00e1sti by m\u011bly b\u00fdt stejn\u00e9 a hloubka ocelov\u00fdch upev\u0148ovac\u00edch \u0161roub\u016f za\u0161roubovan\u00fdch do matic by nem\u011bla b\u00fdt men\u0161\u00ed ne\u017e pr\u016fm\u011br \u0161roub\u016f.<\/p>\n\n\n\n

    (vi) D\u00e9lka zapu\u0161t\u011bn\u00e9ho otvoru ocelov\u00e9ho upev\u0148ovac\u00edho \u0161roubu do otvoru pro \u0161roub by m\u011bla b\u00fdt v\u011bt\u0161\u00ed ne\u017e pr\u016fm\u011br \u0161roubu, litinov\u00e9, m\u011bd\u011bn\u00e9, hlin\u00edkov\u00e9 d\u00edly ne men\u0161\u00ed ne\u017e 1,5n\u00e1sobek pr\u016fm\u011bru \u0161roubu; pokud hloubka otvoru pro \u0161roub nen\u00ed dostate\u010dn\u00e1, mus\u00ed b\u00fdt na pln\u00e9m otvoru.<\/p>\n\n\n\n

    (vii) Kryt rozvodn\u00e9 sk\u0159\u00edn\u011b motoru nesm\u00ed b\u00fdt obr\u00e1cen\u00fd.<\/p>\n\n\n\n

    2. Na povrchu izoluj\u00edc\u00edm v\u00fdbuch nesm\u00ed vady v r\u00e1mci stanoven\u00e9 d\u00e9lky a nejkrat\u0161\u00ed \u00fa\u010dinn\u00e9 d\u00e9lky od okraje otvoru pro \u0161roub po okraj povrchu izoluj\u00edc\u00edho v\u00fdbuch p\u0159ekro\u010dit n\u00e1sleduj\u00edc\u00ed ustanoven\u00ed:<\/p>\n\n\n\n

    (1) Pro m\u00edstn\u00ed vzhled pr\u016fm\u011bru nen\u00ed v\u011bt\u0161\u00ed ne\u017e 1 mm; hloubka nen\u00ed v\u011bt\u0161\u00ed ne\u017e 2 mm p\u00edskov\u00fdch otvor\u016f, v 40, 25, 15 mm povrchu odoln\u00e9ho proti v\u00fdbuchu, ne v\u00edce ne\u017e 2 na centimetr \u010dtvere\u010dn\u00ed.<\/p>\n\n\n\n

    (2) Mechanick\u00e1 r\u00e1na vznikl\u00e1 n\u00e1hodn\u011b, jej\u00ed \u0161\u00ed\u0159ka a hloubka nen\u00ed v\u011bt\u0161\u00ed ne\u017e 0,5 mm, \u00fa\u010dinn\u00e1 d\u00e9lka zb\u00fdvaj\u00edc\u00edho neporan\u011bn\u00e9ho povrchu trysk\u00e1n\u00ed nen\u00ed men\u0161\u00ed ne\u017e 2\/3 stanoven\u00e9 d\u00e9lky.<\/p>\n\n\n\n

    (3) nev\u00fdbu\u0161n\u00fd povrch nen\u00ed dovoleno nat\u00edrat (nalezen\u00fd v n\u00e1t\u011bru p\u0159i kontrole mezery nep\u0159esahuje ustanoven\u00ed o d\u00e9lce spoje bez n\u00e1t\u011bru v d\u00e9lce spoje nen\u00ed men\u0161\u00ed ne\u017e d\u00e9lka ustanoven\u00ed 2\/3 nen\u00ed ztr\u00e1ta v\u00fdbuchu).<\/p>\n\n\n\n

    3. Nev\u00fdbu\u0161n\u00fd motor<\/p>\n\n\n\n

    (1) Povrch nev\u00fdbu\u0161n\u00e9ho spoje h\u0159\u00eddele motoru a otvoru h\u0159\u00eddele by nem\u011bl za norm\u00e1ln\u00edch pracovn\u00edch podm\u00ednek vytv\u00e1\u0159et t\u0159en\u00ed. P\u0159i pou\u017eit\u00ed v\u00e1lcov\u00e9ho nev\u00fdbu\u0161n\u00e9ho kloubov\u00e9ho povrchu nesm\u00ed b\u00fdt minim\u00e1ln\u00ed jednostrann\u00e1 v\u016fle mezi h\u0159\u00eddelem a otvorem pro h\u0159\u00eddel men\u0161\u00ed ne\u017e 0,075 mm.<\/p>\n\n\n\n

    (2) Konstrukce valiv\u00e9ho lo\u017eiska, maxim\u00e1ln\u00ed jednostrann\u00e1 v\u016fle mezi h\u0159\u00eddelem a otvorem pro h\u0159\u00eddel nesm\u00ed b\u00fdt v\u011bt\u0161\u00ed ne\u017e 2\/3 hodnoty uveden\u00e9 v tabulce I. v. Za\u0159\u00edzen\u00ed pro zaveden\u00ed kabelu:<\/strong><\/strong><\/p>\n\n\n\n

    Za\u0159\u00edzen\u00ed pro zaveden\u00ed kabelu mus\u00ed b\u00fdt kompletn\u00ed, \u00fapln\u00e9, t\u011bsn\u00e9 a dob\u0159e ut\u011bsn\u011bn\u00e9, p\u0159i\u010dem\u017e jedna z n\u00e1sleduj\u00edc\u00edch podm\u00ednek je nev\u00fdbu\u0161nost:<\/p>\n\n\n\n

    1. Vnit\u0159n\u00ed pr\u016fm\u011br t\u011bsn\u011bn\u00ed je v\u011bt\u0161\u00ed ne\u017e vn\u011bj\u0161\u00ed pr\u016fm\u011br kabelu o v\u00edce ne\u017e 1 mm.<\/p>\n\n\n\n

    2. Rozd\u00edl mezi vnit\u0159n\u00edm pr\u016fm\u011brem vstupn\u00ed trysky a vn\u011bj\u0161\u00edm pr\u016fm\u011brem t\u011bsnic\u00edho krou\u017eku je v\u011bt\u0161\u00ed ne\u017e hodnota uveden\u00e1 v tabulce II.<\/p>\n\n\n\n

    3. \u0160\u00ed\u0159ka t\u011bsnic\u00edho krou\u017eku je men\u0161\u00ed ne\u017e 0,7n\u00e1sobek vn\u011bj\u0161\u00edho pr\u016fm\u011bru kabelu nebo minim\u00e1ln\u00ed \u0161\u00ed\u0159ka je men\u0161\u00ed ne\u017e 10 mm.<\/p>\n\n\n\n

    4. Tlou\u0161\u0165ka t\u011bsnic\u00edho krou\u017eku je men\u0161\u00ed ne\u017e 0,3 n\u00e1sobek vn\u011bj\u0161\u00edho pr\u016fm\u011bru kabelu (s v\u00fdjimkou kabel\u016f o rozm\u011brech 70 mm2 a v\u00edce) nebo je minim\u00e1ln\u00ed tlou\u0161\u0165ka men\u0161\u00ed ne\u017e 4 mm.<\/p>\n\n\n\n

    5. T\u011bsn\u011bn\u00ed s v\u00edce kabely navle\u010den\u00fdmi do jednoho otvoru.<\/p>\n\n\n\n

    6. Od\u0159\u00edzn\u011bte t\u011bsnic\u00ed krou\u017eek nad kabelem.<\/p>\n\n\n\n

    7. Tvrdost t\u011bsnic\u00edho krou\u017eku neodpov\u00edd\u00e1 Sauerov\u011b tvrdosti 45 stup\u0148\u016f - 55 stup\u0148\u016f, st\u00e1rnut\u00ed (prask\u00e1n\u00ed, lepen\u00ed, tvrdnut\u00ed, m\u011bknut\u00ed, rozm\u011bl\u0148ov\u00e1n\u00ed, zm\u011bna barvy a dal\u0161\u00ed jevy) ztr\u00e1ta pru\u017enosti, trval\u00e1 deformace, \u00fa\u010dinn\u00e1 velikost sp\u00e1ry ulo\u017een\u00ed neodpov\u00edd\u00e1 po\u017eadavk\u016fm na t\u011bsnic\u00ed \u00falohu.<\/p>\n\n\n\n

    8. T\u011bsnic\u00ed krou\u017eek nen\u00ed zcela na pl\u00e1\u0161ti kabelu (nebo na panc\u00e9\u0159ov\u00e9m pl\u00e1\u0161ti veden\u00ed kabelu).<\/p>\n\n\n\n

    9. Mezi t\u011bsnic\u00edm krou\u017ekem a pl\u00e1\u0161t\u011bm kabelu (nebo olov\u011bn\u00fdm pl\u00e1\u0161t\u011bm panc\u00e9\u0159ov\u00e9ho kabelu) jsou dal\u0161\u00ed obaly; mezi t\u011bsnic\u00edm krou\u017ekem a p\u0159\u00edvodn\u00ed tryskou jsou v\u00fdpln\u011b.<\/p>\n\n\n\n

   10. V jedn\u00e9 vstupn\u00ed trysce je pou\u017eito v\u00edce t\u011bsn\u011bn\u00ed.<\/p>\n\n\n\n

   11. Za\u0159\u00edzen\u00ed pro zav\u00e1d\u011bn\u00ed kabel\u016f se z\u00e1vity, se zapojen\u00edm m\u00e9n\u011b ne\u017e 5 spojovac\u00edch prvk\u016f, s d\u00e9lkou z\u00e1vitov\u00e9 \u010d\u00e1sti men\u0161\u00ed ne\u017e 8 mm a s m\u00e9n\u011b ne\u017e 6 z\u00e1vitov\u00fdmi prvky.<\/p>\n\n\n\n

   12. P\u0159esnost z\u00e1vitu je men\u0161\u00ed ne\u017e stupe\u0148 3 a stoup\u00e1n\u00ed je men\u0161\u00ed ne\u017e 0,7 mm.<\/p>\n\n\n\n

   13. Nepou\u017eit\u00e1 pod\u00e1vac\u00ed tryska nem\u00e1 t\u011bsnic\u00ed krou\u017eek nebo p\u0159ep\u00e1\u017eku; nebo je p\u0159ep\u00e1\u017eka um\u00edst\u011bna uvnit\u0159 t\u011bsnic\u00edho krou\u017eku; pr\u016fm\u011br p\u0159ep\u00e1\u017eky je men\u0161\u00ed ne\u017e vnit\u0159n\u00ed pr\u016fm\u011br pod\u00e1vac\u00ed trysky o v\u00edce ne\u017e 2 mm; tlou\u0161\u0165ka p\u0159ep\u00e1\u017eky je men\u0161\u00ed ne\u017e 2 mm nebo tlou\u0161\u0165ka p\u0159ep\u00e1\u017eky je men\u0161\u00ed ne\u017e 3 mm, pokud je pr\u016fm\u011br p\u0159ep\u00e1\u017eky 110 mm a v\u00edce (v\u0161echny p\u0159ep\u00e1\u017eky by m\u011bly b\u00fdt pozinkovan\u00e9).<\/p>\n\n\n\n

   14. P\u0159i pou\u017eit\u00ed spir\u00e1lov\u00e9 pod\u00e1vac\u00ed trysky chyb\u00ed kovov\u00fd krou\u017eek; nesoulad kovov\u00e9ho krou\u017eku a pod\u00e1vac\u00ed trysky. (Nepou\u017eit\u00e9 pod\u00e1vac\u00ed trysky lze pou\u017e\u00edt bez kovov\u00fdch krou\u017ek\u016f).<\/p>\n\n\n\n

   15. Po stla\u010den\u00ed vstupn\u00ed trysky nen\u00ed \u017e\u00e1dn\u00e1 rezerva nebo vnit\u0159n\u00ed okraj vstupn\u00ed trysky nem\u016f\u017ee t\u011bsn\u011b p\u0159itla\u010dit t\u011bsnic\u00ed krou\u017eek; \u010deln\u00ed plocha t\u011bsnic\u00edho krou\u017eku nen\u00ed v dobr\u00e9m kontaktu se st\u011bnou; nebo se t\u011bsnic\u00ed krou\u017eek m\u016f\u017ee pohybovat.<\/p>\n\n\n\n

   16. P\u0159\u00edtla\u010dn\u00e1 deska typu trysky pro pod\u00e1v\u00e1n\u00ed dr\u00e1tu nem\u00e1 kompresn\u00ed \u0161roub nebo nen\u00ed dota\u017een, rukou m\u016f\u017ee b\u00fdt z\u0159ejm\u00e9, \u017ee se tryska pro pod\u00e1v\u00e1n\u00ed dr\u00e1tu t\u0159ese.<\/p>\n\n\n\n

   17. Trysky podava\u010d\u016f dr\u00e1tu s matic\u00ed, kter\u00e9 nelze dot\u00e1hnout na m\u00edst\u011b z d\u016fvodu chaotick\u00e9ho vzp\u0159\u00ed\u010den\u00ed, zreziv\u011bn\u00ed apod. nebo u kter\u00fdch se palec, ukazov\u00e1\u010dek a prost\u0159edn\u00ed\u010dek jedn\u00e9 ruky pou\u017e\u00edvaj\u00ed k tomu, aby se p\u0159\u00edtla\u010dn\u00e1 matice posunula o v\u00edce ne\u017e p\u016fl ot\u00e1\u010dky ve sm\u011bru za\u0161roubov\u00e1n\u00ed.<\/p>\n\n\n\n

   18 kabel na vstupn\u00ed trysce, kter\u00fd se jednou rukou tla\u010d\u00ed ve sm\u011bru vstupu kabelu.<\/p>\n\n\n\n

   19. Pokud je v rozvodn\u00e9 sk\u0159\u00edni vysokonap\u011b\u0165ov\u00e9ho panc\u00e9\u0159ov\u00e9ho kabelu pou\u017eita izola\u010dn\u00ed pry\u017e, nen\u00ed izola\u010dn\u00ed pry\u017e vypln\u011bna nad \u00fast\u00edm se t\u0159emi vidlicemi; izola\u010dn\u00ed pry\u017e m\u00e1 trhliny, kter\u00e9 mohou b\u00fdt relativn\u011b aktivn\u00ed.<\/p>\n\n\n\n

VI. P\u0159ipojen\u00ed kabel\u016f:<\/strong><\/strong><\/h2>\n\n\n\n

    Kabelov\u00e9 p\u0159ipojen\u00ed se pova\u017euje za p\u0159eru\u0161en\u00e9, pokud plat\u00ed jedna z n\u00e1sleduj\u00edc\u00edch podm\u00ednek:<\/p>\n\n\n\n

    1. Kabel nen\u00ed spojen vulkanizovanou horkou z\u00e1platou.<\/p>\n\n\n\n

    2. Kabely (v\u010detn\u011b komunika\u010dn\u00edch, osv\u011btlovac\u00edch, signaliza\u010dn\u00edch, ovl\u00e1dac\u00edch kabel\u016f), pokud je rozvodn\u00e1 sk\u0159\u00ed\u0148 s ne jiskrov\u011b bezpe\u010dn\u00fdm za\u0159\u00edzen\u00edm, nepou\u017e\u00edvejte nev\u00fdbu\u0161nou kabelovou rozvodnou sk\u0159\u00ed\u0148 (pat\u0159\u00edc\u00ed do jiskrov\u011b bezpe\u010dn\u00e9ho ovl\u00e1d\u00e1n\u00ed komunika\u010dn\u00edch kabel\u016f, m\u011bla by b\u00fdt pou\u017eita jiskrov\u011b bezpe\u010dn\u00e1 rozvodn\u00e1 sk\u0159\u00ed\u0148);<\/p>\n\n\n\n

    3. Panc\u00e9\u0159ov\u00e9 kabelov\u00e9 p\u0159ipojen\u00ed nepou\u017e\u00edv\u00e1 spojovac\u00ed sk\u0159\u00ed\u0148ku, st\u0159edn\u00ed sk\u0159\u00ed\u0148ka nen\u00ed napln\u011bna izola\u010dn\u00edm v\u00fdpl\u0148ov\u00fdm materi\u00e1lem nebo v\u00fdpl\u0148 nen\u00ed p\u0159\u00edsn\u00e1 net\u011bsnost j\u00e1dra spoj\u016f;<\/p>\n\n\n\n

    4. Konec kabelu nen\u00ed p\u0159ipojen k instalaci nev\u00fdbu\u0161n\u00e9ho elektrick\u00e9ho za\u0159\u00edzen\u00ed nebo nev\u00fdbu\u0161n\u00fdch sou\u010d\u00e1st\u00ed;<\/p>\n\n\n\n

    5. Elektrick\u00e1 za\u0159\u00edzen\u00ed a kabely s odkryt\u00fdmi vodi\u010di;<\/p>\n\n\n\n

6. Pry\u017eov\u00fd pl\u00e1\u0161\u0165, zes\u00ed\u0165ovan\u00fd polyethylenov\u00fd pl\u00e1\u0161\u0165 kabelu po\u0161kozen\u00ed obna\u017een\u00e9ho j\u00e1dra (st\u00edn\u011bn\u00fd kabel obna\u017een\u00e9 st\u00edn\u011bn\u00ed nebo jiskrov\u011b bezpe\u010dn\u00e9 za\u0159\u00edzen\u00ed p\u0159ipojen\u00e9 k obna\u017een\u00e9mu vodi\u010di kabelu krom\u011b, ale m\u011blo by b\u00fdt neprodlen\u011b opraveno).<\/p>\n\n\n\n

VII. Neho\u0159lav\u00e9 z\u00e1suvn\u00e9 za\u0159\u00edzen\u00ed:<\/strong><\/strong><\/h2>\n\n\n\n

    1. Nap\u00e1jec\u00ed strana z\u00e1str\u010dky elektrick\u00e9 vrta\u010dky na uhl\u00ed by m\u011bla b\u00fdt p\u0159ipojena k z\u00e1suvce, m\u011b\u0159en\u00ed z\u00e1t\u011b\u017ee je p\u0159ipojeno k z\u00e1str\u010dce a p\u0159ipojen\u00ed je obr\u00e1cen\u00e9, aby bylo pova\u017eov\u00e1no za ztr\u00e1tu v\u00fdbuchu.<\/p>\n\n\n\n

    2. Za\u0159\u00edzen\u00ed pro spojov\u00e1n\u00ed nezabra\u0148uje n\u00e1hl\u00e9mu odpojen\u00ed za\u0159\u00edzen\u00ed pro pohyb Xu, nap\u00e1jec\u00ed nap\u011bt\u00ed v rozmez\u00ed 660 V - 1140 V z\u00e1str\u010dkov\u00e9ho za\u0159\u00edzen\u00ed chyb\u00ed elektrick\u00e9 blokovac\u00ed za\u0159\u00edzen\u00ed, kter\u00e9 je pova\u017eov\u00e1no za nev\u00fdbu\u0161n\u00e9.<\/p>\n\n\n\n

    3. Z\u00e1str\u010dka v kontaktn\u00edm odpojova\u010di v okam\u017eiku v\u00fdpadku nap\u00e1jen\u00ed, pl\u00e1\u0161\u0165 o maxim\u00e1ln\u00edm pr\u016fm\u011bru rozd\u00edlu povrch\u016f prasknut\u00ed w a minim\u00e1ln\u00ed \u00fa\u010dinn\u00e9 d\u00e9lce L, nespl\u0148uje ustanoven\u00ed tabulky III pro ztr\u00e1tu v\u00fdbuchu.<\/p>\n\n\n\n

VIII. Osv\u011btlovac\u00ed za\u0159\u00edzen\u00ed:<\/a><\/strong><\/h2>\n\n\n\n

    1. Nev\u00fdbu\u0161n\u00e9 bezpe\u010dnostn\u00ed lampy a sv\u00edtilny pro zm\u011bnu tlakov\u00e9ho portu na port Luo pro ztr\u00e1tu v\u00fdbuchu.<\/p>\n\n\n\n

    2. Nev\u00fdbu\u0161n\u00e9 lampy a sv\u00edtilny lze otev\u0159\u00edt a\u017e po odpojen\u00ed pr\u016fhledn\u00e9ho krytu nap\u00e1jec\u00edho zdroje p\u0159i selh\u00e1n\u00ed blokovac\u00edho za\u0159\u00edzen\u00ed pro p\u0159\u00edpad v\u00fdbuchu.<\/p>\n\n\n\n

    3. Sklen\u011bn\u00fd kryt nev\u00fdbu\u0161n\u00fdch lamp a sv\u00edtilen se zd\u00e1 b\u00fdt uvoln\u011bn\u00fd, praskl\u00fd, rozbit\u00fd, co\u017e je jeden z p\u0159\u00edpad\u016f ztr\u00e1ty v\u00fdbuchu.<\/p>\n\n\n\n

IX. D\u016fln\u00ed lampy:<\/strong><\/strong><\/h2>\n\n\n\n

   D\u016fln\u00ed sv\u00edtidla pou\u017e\u00edvan\u00e1 v podzem\u00ed mus\u00ed m\u00edt zna\u010dku nev\u00fdbu\u0161nosti a bezpe\u010dnostn\u00ed zna\u010dku d\u016fln\u00edch v\u00fdrobk\u016f a za ztr\u00e1tu v\u00fdbu\u0161nosti se pova\u017euje jeden z n\u00e1sleduj\u00edc\u00edch stav\u016f:<\/p>\n\n\n\n

   1. Praskl\u00e1 hlava sv\u011btlometu, uvoln\u011bn\u00fd krou\u017eek hlavy sv\u011btlometu, praskl\u00e9 sklo, \u0161patn\u00e9 t\u011bsn\u011bn\u00ed hlavy sv\u011btlometu, porucha z\u00e1mku sv\u011btlometu.<\/p>\n\n\n\n

   2. Veden\u00ed lampy je p\u0159eru\u0161en\u00e9 a odhalen\u00e9 j\u00e1dro dr\u00e1tu, za\u0159\u00edzen\u00ed pro zaveden\u00ed veden\u00ed lampy je po\u0161kozen\u00e9, t\u011bsn\u011bn\u00ed nen\u00ed t\u011bsn\u00e9, veden\u00ed lampy je po\u0161kozen\u00e9.<\/p>","protected":false},"excerpt":{"rendered":"

Coal mine explosion-proof inspection standards I. General provisions:     1. In order to further implement the “Coal Mine Safety Regulations” and the standards and regulations on explosion-proof electrics, to improve the understanding of electromechanical workers on the performance of explosion-proof electrics, and to facilitate the mastery of the use of the standards in practical […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2154","post","type-post","status-publish","format-standard","hentry","category-explosion-proof-equipment"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/cs\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"Coal mine explosion-proof inspection standards I. General provisions:     1. 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