Ubufakazi bokuqhuma kwe-Shenhai
Umaka ovikela ukuqhuma ezimpahleni zokukhanyisa ezingaqhumi ilebula elichaza izinga lokuvikela ukuqhuma, iqembu lokushisa, uhlobo, nezindawo ezisebenzayo zokukhanyisa izibani.
Incazelo yokumaka okungaqhumi:
Ngokusho kwe-GB 3836 izindinganiso, ukumaka okuvimbela ukuqhuma kwezinto zokukhanyisa kuhlanganisa:
Uhlobo olungaqhumi + Isigaba Sezisetshenziswa + (Iqembu Legesi) + Iqembu Lokushisa.
1. Uhlobo olungaqhumi:
Ithebula 1 Izinhlobo Eziyisisekelo Zobufakazi Bokuqhuma
| Ifomu lokufakazela ukuqhuma | Uphawu lwefomu lokufakazela ukuqhuma | Ifomu lokufakazela ukuqhuma | Uphawu lwefomu lokufakazela ukuqhuma |
|---|---|---|---|
| Uhlobo lwe-flameproof | EX d | Uhlobo olugcwele isihlabathi | EX |
| Uhlobo lokuphepha olunyusiwe | EX kanye | I-Ecapsulation | EX m |
| Uhlobo lwe-Barotropic | KUSUKA ek | N-uhlobo | EX n |
| Uhlobo oluphephile ngaphakathi | EX EX i | Uhlobo olukhethekile | EX s |
| Uhlobo lokuhlasela uwoyela | EX noma | Uhlobo olungaqhumi uthuli | EX A EX B |
2. Isigaba Sezisetshenziswa:
Impahla kagesi ye eziqhumayo igesi emkhathini ihlukaniswe yaba:
Ikilasi I: Ezosetshenziswa ezimayini zamalahle;
Ikilasi II: Izosetshenziswa ezindaweni ezineziqhumane zegesi ngaphandle kwezimayini zamalahle.
I-Class II-proof-proof “d” kanye nokuphepha kwangaphakathi “i” izinto zikagesi ziphinde zihlukaniswe zibe yi-IIA, IIB, kanye namakilasi e-IIC.
Impahla kagesi ye uthuli oluvuthayo izindawo zihlukaniswe:
Uhlobo A lwemishini evimbela uthuli; Imishini yohlobo B eqinisa uthuli;
Uhlobo A lwemishini engangeni uthuli; Imishini yokuvikela uthuli yohlobo B.
3. Incazelo yokumaka okungaqhumi:
Ikhono lengxube yegesi eqhumayo yokusabalalisa ukuqhuma libonisa izinga layo lengozi yokuqhuma. Ikhono elikhulu lokusakaza ukuqhuma, iyanda ingozi. Leli khono lingamelwa yigebe enkulu yokuphepha yokuhlola. Ukwengeza, kalula amagesi aqhumayo, umhwamuko, noma izinkungu zingaba kwavutha futhi ikhombisa izinga lengozi yokuqhuma, imelelwa isilinganiso samanje esincane sokuthungela. Izinto zikagesi ezingaqhumeki noma eziphephile ngaphakathi zihlukaniswa futhi zibe yi-IIA, IIB, kanye ne-IIC ngokusekelwe kugebe eliphephile lokuhlola eliphezulu elisebenzayo noma isilinganiso esincane sokuvutha kwamanje.
Ithebula 2 Ubudlelwano phakathi kweQembu Lemixube Yegesi Eqhumayo kanye Negebe Eliphephile Lokuhlola Eliphezulu noma Isilinganiso Samanje Sokubasa
| Iqembu legesi | Igebe eliphakeme lokuphepha lokuhlola i-MESG (m m) | Isilinganiso esincane sokuthungela samanje se-MICR |
|---|---|---|
| IIA | I-MESG≥0.9 | I-MICR-0.8 |
| IIB | 0.9＞MESG≥0.5 | 0.8≥MICR≥0.45 |
| I-IIC | 0.5≥MESG | 0.45＞I-MICR |
4. Iqembu Lokushisa:
Ukuthungela izinga lokushisa yengxube yegesi eqhumayo izinga lokushisa elilinganiselwe elingathungela ngalo.
Izinto zikagesi zihlukaniswa ngamaqembu e-T1 kuya ku-T6 ngokuya ngezinga lawo lokushisa eliphezulu kakhulu, ukuqinisekisa ukuthi izinga lokushisa eliphezulu eliphezulu lezinto zokusebenza alidluli inani elivumelekile leqembu lokushisa elihambisanayo. Ubudlelwano phakathi kwamaqembu okushisa, izinga lokushisa kwamanzi emishini, kanye nezinga lokushisa lomlilo we ezivuthayo amagesi noma umhwamuko kukhonjiswe kuThebula 3.
Ithebula 3 Ubudlelwano phakathi Kwamaqembu Okushisa, Izisetshenziswa Zokushisa Okuphezulu, kanye Nezinga Lokushisa Lokushisa Lamagesi Avuthayo noma Izihwamuko
| Izinga lokushisa IEC/EN/GB 3836 | Inani eliphakeme kakhulu lama-T [℃] | Izinga lokushisa le-Lgnition lezinto ezivuthayo [℃] |
|---|---|---|
| T1 | 450 | T = 450 |
| T2 | 300 | 450≥T＞300 |
| T3 | 200 | 300≥T＞200 |
| T4 | 135 | 200≥T＞135 |
| T5 | 100 | 135≥T＞100 |
| T6 | 85 | 100≥T＞8 |
5. Izidingo Zokusetha Izimpawu:
(1) Izimpawu kufanele zibekwe ngokugqamile emzimbeni omkhulu wezinto zikagesi;
(2) Izimpawu kufanele zihlale zicacile futhi ziqinile ngaphansi kokugqwala kwamakhemikhali okungenzeka. Izimpawu ezifana ne-Ex, uhlobo lokuvikela ukuqhuma, isigaba, kanye neqembu lokushisa kungenziwa embossed noma debossed ezingxenyeni ezibonakalayo casing. Impahla yepuleti lokumaka kufanele imelane namakhemikhali, njengethusi, zethusi, noma insimbi engagqwali.