I-GB/T 3091 “Ipayipi lensimbi elishiselwe ukuthuthwa kwamanzi okucindezelwa okuphansi” (inguqulo ka-2015 yenguqulo evamile) ivunyelwe yiKomidi Likazwelonke Lokulinganisa futhi yakhululwa ngokusemthethweni, kusukela ngo-June 01, 2016 ukuqaliswa okusemthethweni;Ngesikhathi esifanayo, inguqulo yasekuqaleni ye-GB/T 3091-2008 ayivumelekile ngokusemthethweni!
Ukuhunyushwa kwezinhlinzeko ezibalulekile Zezinga Likazwelonke elisha:
1. Isisindo esifakwe uthayela — “Umugqa ongezansi”
Esilinganisweni esisha kazwelonke, ku-zinc layer yesisindo senkomba yepayipi lensimbi okokuqala ngqa beka phambili "izidingo zomugqa ophansi"!Okungukuthi: kunguqulo yakudala yezinga kuphela "imibandela okuxoxiswene ngayo" ngesisekelo sokwenyuka "kwepayipi lensimbi ngaphakathi nangaphandle kwendawo yeyunithi yongqimba lwama-galvanized isisindo isamba akumele sibe ngaphansi kuka-300g/m²" izidingo eziyisibopho ezijwayelekile.
Ngenxa yalokho, ukuphila okujwayelekile kwepayipi lensimbi kunwetshwa okungenani ngama-30% !!
2. Ukuphela kwepayipi
Amapayipi ensimbi anobubanzi obungaphandle obungekho ngaphezu kuka-114.3mm(amayintshi angu-4 noma ngaphansi) kufanele abe flat ngomshini (ngaphandle kwamabhula ekugcineni).
3. Lungisa i-welding yeziphambeko
Ngemva kokubuyekezwa kwezinga elisha, ukulungiswa kweziphambeko kuguqulwa kube: ipayipi eliqondile likagesi elishiselwe ipayipi elinobubanzi obungaphandle obungaphansi kuka-219.1mm alivunyelwe ukulungisa ukushisela.
Ukuqhathanisa: I-GB/T3091-2008 ibeka ukuthi “ipayipi lensimbi elinedayamitha yangaphandle elingengaphezu kuka-114.3mm alivunyelwe ukulungisa ukushisela, ipayipi lensimbi elinedayamitha yangaphandle elingekho ngaphansi kuka-114.3mm, lingalungisa izinkinga esisekelweni sensimbi nokushisela.”
4. Ukujiya kodonga
Izinga elisha libeka inani elincane lokujiya kodonga lwepayipi lensimbi, okungukuthi, Ithebula 1 “Ububanzi bokuzisholo, ububanzi obungaphandle, ukushuba Kodonga Lwebizo kanye nokungazungezi kwepayipi lensimbi elinedayamitha engaphandle elingengaphezu kuka-219.1mm” lingeziwe, elihlinzeka isisekelo esiqondile sokuklama nokukhethwa kwezinto zokwakha amayunithi omklamo wobunjiniyela.
Ø Ipayipi lensimbi elinodonga oluwugqinsi olungaphansi kuka ** oluncane aluvunyelwe ukwenza i-GB/T3091-2015 ejwayelekile!!
5. Uphawu lwepayipi lensimbi
Izinga elisha lithi: “Ukumakwa kwamapayipi ensimbi kuzofaka okungenani lokhu okulandelayo: igama lomkhiqizi noma uphawu lokuhweba, inombolo evamile yomkhiqizo, inombolo yohlobo lwensimbi, ukucaciswa komkhiqizo kanye nenombolo kamazisi yokulandeleka.”
Uphawu lwepayipi lensimbi luqukethe ilebula yomkhiqizo kanye nekhodi yomzimba wepayipi.Uma noma yiluphi ulwazi olungenhla lungekho, akukho emthethweni.
Isikhathi sokuthumela: Jul-09-2022