E tohutohu ana a OSHA i ngā kaimahi tiaki kia raka, kia tāpirihia he tohu, kia whakahaere hoki i ngā pūtake pūngao kino. Kāore ētahi tāngata e mōhio me pēhea te mahi i tēnei mahi, he rerekē ia mīhini. Getty Images
I roto i te hunga e whakamahi ana i tētahi momo taputapu ahumahi,raka/tārua (LOTO)ehara i te mea hou. Ki te kore te hiko e momotuhia, kāore tetahi e maia ki te mahi i tētahi momo tiaki auau, ki te ngana rānei ki te whakatika i te mīhini, i te pūnaha rānei. He whakaritenga noa iho tēnei mā te whakaaro noa me te Whakahaere Haumaru me te Hauora Mahi (OSHA).
I mua i te mahi i ngā mahi tiaki, i ngā whakatikatika rānei, he māmā noa te momotu i te mīhini mai i tōna pūtake hiko - mā te whakaweto i te pūwāhi hiko - me te raka i te tatau o te papa pūwāhi hiko. He mea ngāwari anō hoki te tāpiri i tētahi tapanga e tohu ana i ngā ingoa o ngā tohunga tiaki.
Ki te kore e taea te raka i te hiko, ko te tapanga anake ka taea te whakamahi. Ahakoa he raka, he kore raka rānei, e tohu ana te tapanga kei te haere tonu te mahi tiaki, ā, kāore te taputapu e whakakahangia ana.
Heoi, ehara i te mutunga o te rota. Ehara i te mea ko te momotu noa i te pūtake hiko te whāinga matua. Ko te whāinga he pau, he tuku rānei i ngā pūngao kino katoa - e ai ki ngā kupu a te OSHA, he whakahaere i ngā pūngao kino.
E whakaatu ana te kani noa i ngā tūponotanga rangitahi e rua. Kia whakawetohia te kani, ka haere tonu te mata kani mō ētahi hēkona, ā, ka mutu noa ina pau te kaha e rongoa ana i roto i te motuka. Ka noho wera tonu te mata mō ētahi meneti tae noa ki te memeha haere o te wera.
Pērā i te kani e penapena ana i te pūngao miihini me te pūngao wera, ka taea e te mahi whakahaere mīhini ahumahi (hiko, waipēhi me te hau) te penapena pūngao mō te wā roa. I runga i te kaha hiri o te pūnaha waipēhi, haupēhi rānei, i te kaha rānei o te ara iahiko, ka taea te penapena pūngao mō te wā roa whakamiharo.
Me nui te kaha e pau ana i ngā mīhini ahumahi. Ka taea e te maitai AISI 1010 te tu atu ki ngā kaha piko tae atu ki te 45,000 PSI, nō reira me tuku e ngā mīhini pēnei i ngā pēhi pēhi, ngā punch, ngā punch, me ngā pipe conduits te kaha i roto i ngā tana. Mena kua katihia, kua momotuhia hoki te ara iahiko e whakakaha ana i te pūnaha papu waipēhi, tera pea ka taea tonu e te wāhanga waipēhi o te pūnaha te whakarato i te 45,000 PSI. Mō ngā mīhini e whakamahi ana i ngā pokepokea, i ngā mata rānei, he nui tēnei hei kuru, hei tapahi rānei i ngā peka.
He rite tonu te morearea o te taraka peere kua kati me te peere kei te rangi ki te taraka peere kāore i kati. Whakatuwheratia te takirere hē, ā, ka riro mai te mana o te kaha ā-papa. Waihoki, ka taea e te pūnaha hau te pupuri i te nui o te pūngao ina whakawetohia. Ka taea e te mīhini piko paipa rahi-waenga te mimiti tae atu ki te 150 ampere o te iahiko. Tae noa ki te 0.040 amps, ka mutu te patu a te ngākau.
He mahi matua te tuku haumaru, te whakaiti rānei i te kaha i muri i te whakaweto i te hiko me te LOTO. Ko te tuku haumaru, te whakapau rānei i te kaha morearea me mārama ki ngā mātāpono o te pūnaha me ngā taipitopito o te mīhini e hiahia ana kia tiakina, kia whakatikahia rānei.
E rua ngā momo pūnaha waipēhi: te porowhita tuwhera me te porowhita kati. I roto i te taiao ahumahi, ko ngā momo papu noa ko ngā taputapu, ngā vane, me ngā piston. Ka taea te mahi kotahi, te mahi takirua rānei te rango o te taputapu e oma ana. Ka taea e ngā pūnaha waipēhi te whai i tētahi o ngā momo takirere e toru - te whakahaere ahunga, te whakahaere rere, me te whakahaere pēhanga - he maha ngā momo o ia momo. He maha ngā mea hei aro atu, nō reira me mārama pai ki ia momo wāhanga hei whakakore i ngā mōrearea e pā ana ki te pūngao.
I mea atu a Jay Robinson, te rangatira me te perehitini o RbSA Industrial: "Tērā pea ka peia te pūwhakaoho waipēhi e te takirere kati-putanga-katoa." "Ka huakina te takirere solenoid e te takirere. Ina rere te pūnaha, ka rere te wai waipēhi ki te taputapu i te pēhanga teitei, ki te tāke hoki i te pēhanga iti," tana kī. . "Mēnā ka whakaputa te pūnaha i te 2,000 PSI, ā, ka whakawetohia te hiko, ka haere te solenoid ki te tūranga pokapū, ka aukati i ngā putanga katoa. Kāore e taea te rere o te hinu, ā, ka mutu te mīhini, engari ka taea e te pūnaha te whai i te 1,000 PSI i ia taha o te takirere."
Wā tuku: Hepetema-04-2021
