Antes de algu\u00e9m entrar numa c\u00e2mara de inspe\u00e7\u00e3o ou passagem que constitua um espa\u00e7o confinado sujeito a autoriza\u00e7\u00e3o, \u00e9 necess\u00e1rio avaliar o espa\u00e7o, testar a atmosfera, designar um assistente e um supervisor de entrada, organizar o resgate e emitir uma autoriza\u00e7\u00e3o de entrada assinada. Durante a entrada, as condi\u00e7\u00f5es s\u00e3o monitorizadas e o assistente permanece no exterior. Sempre que a tampa estiver removida, a c\u00e2mara de inspe\u00e7\u00e3o aberta deve ser protegida e as pessoas devem ser alertadas para o perigo.<\/p>\n
Segue-se um resumo pr\u00e1tico das normas da OSHA dos EUA e do Regulamento de 1997 do Reino Unido relativo a espa\u00e7os confinados. N\u00e3o se trata de aconselhamento jur\u00eddico; leia sempre a regulamenta\u00e7\u00e3o aplic\u00e1vel ao seu local de trabalho.<\/p>\n
Under 29 CFR 1910.146(b), a confined space can be bodily entered to perform work, has limited or restricted means for entry or exit, and “is not designed for continuous employee occupancy.” Tanks, vessels and pits are named as examples. It becomes a permit-required confined space (permit space) when it:<\/p>\n
O empregador deve avaliar o local de trabalho para identificar os espa\u00e7os sujeitos a autoriza\u00e7\u00e3o ((c)(1)) e informar os trabalhadores expostos atrav\u00e9s da afixa\u00e7\u00e3o de sinais de perigo ou de qualquer outro meio igualmente eficaz ((c)(2)).<\/p>\n
As medidas previstas na al\u00ednea d), n.\u00ba 3, s\u00e3o registadas numa autoriza\u00e7\u00e3o de entrada antes de esta ser autorizada (al\u00ednea e), n.\u00ba 1), e o supervisor de entrada assina-a antes do in\u00edcio da entrada (al\u00ednea e), n.\u00ba 2).<\/p>\n
Conditions are tested or monitored during entry ((d)(5)(ii)). Under paragraph (i), the attendant keeps an accurate count of entrants, remains outside until relieved, communicates with entrants, orders evacuation and summons rescue when needed. If unauthorized persons approach, the attendant must “Warn the unauthorized persons that they must stay away from the permit space” ((i)(8)(i)). A clearly visible barrier at the manhole supports that job.<\/p>\n
O supervisor de acesso cancela a autoriza\u00e7\u00e3o quando os trabalhos estiverem conclu\u00eddos ou quando surgir uma situa\u00e7\u00e3o n\u00e3o permitida pela autoriza\u00e7\u00e3o ((e)(5)). As autoriza\u00e7\u00f5es canceladas s\u00e3o conservadas durante, pelo menos, um ano, com a indica\u00e7\u00e3o de quaisquer problemas ((e)(6)). At\u00e9 que a tampa seja recolocada, a c\u00e2mara de inspe\u00e7\u00e3o aberta continua a necessitar de prote\u00e7\u00e3o.<\/p>\n
Paragraph (c)(3) of 1910.146 says that if the employer decides its employees will not enter permit spaces, “the employer shall take effective measures to prevent its employees from entering the permit spaces.” For construction, 29 CFR 1926.1203(c) is similar.<\/p>\n
For entries under the alternate procedures of 1910.146(c)(5), paragraph (c)(5)(ii)(B) states: “When entrance covers are removed, the opening shall be promptly guarded by a railing, temporary cover, or other temporary barrier that will prevent an accidental fall through the opening and that will protect each employee working in the space from foreign objects entering the space.” The construction standard, 1926.1203(e)(2)(ii), uses similar wording and requires the opening to be “immediately guarded.”<\/p>\n
Importante:<\/strong> As barreiras para espa\u00e7os confinados CableSafe restringem a entrada e alertam o pessoal. N\u00e3o constituem prote\u00e7\u00e3o contra quedas. Nos casos em que seja poss\u00edvel uma queda atrav\u00e9s da abertura, utilize prote\u00e7\u00f5es concebidas para impedir quedas e recorra \u00e0s barreiras CableSafe para sinalizar e restringir o acesso \u00e0 abertura.<\/p>\nQual barreira CableSafe se adapta a cada abertura<\/h3>\n