I-OEM Liquid Oxygen Pipe Series
I-OEM Liquid Oxygen Pipe Series Ethuthukisiwe: Imboni yethu yokukhiqiza iyaziqhenya ukwethula uchungechunge lwepayipi lomoya-mpilo we-OEM oluthuthukisiwe olwenzelwe izinhlelo zokusebenza zezimboni. Lawa mapayipi akhiwe ngokukhethekile ukuze kube lula ukuthuthwa okusebenzayo nokuphephile komoyampilo owuketshezi ngaphakathi kwezilungiselelo zezimboni, njengezikhungo zezokwelapha, imisebenzi yensimbi, kanye nezicelo ze-aerospace.
Izinto Ezisezingeni eliphezulu kanye Nokukhiqiza Okunembayo: Uchungechunge lwepayipi lomoya-mpilo we-OEM oluwuketshezi lwakhiwe kusetshenziswa izinto zekhwalithi ephezulu futhi lungena ezinqubweni zokukhiqiza ezinembayo ukuze kuqinisekiswe ubuqotho besakhiwo, ukuqina, nokuphepha. Lawa mapayipi aklanyelwe ukumelana nezidingo ezinzima zezindawo zezimboni, ehlinzeka ngomsele onokwethenjelwa novikelekile wokuthuthwa komoya-mpilo owuketshezi.
Izinketho Ezenzeka Ngokwezifiso Zezidingo Zezimboni Ezihlukahlukene: Ngokubona izidingo ezihlukahlukene zabasebenzisi bezimboni, uchungechunge lwethu lwepayipi lomoya-mpilo we-OEM oluwuketshezi lunikeza izinketho ongazikhetha ezifana nobubanzi, ubude, nokucushwa kokufaneleka. Lokhu kuvumelana nezimo kuvumela amakhasimende ethu ukuthi enze amapayipi afanele izidingo zawo ezithile, aqinisekise ukuhlanganiswa okungenamthungo ezinhlelweni nasezinqubweni zawo ezikhona.
Ikhiqizwe Imboni Yokukhiqiza Enolwazi: Ngokugxila okuqinile kwikhwalithi nokusebenza okukhethekile, ifekthri yethu yokukhiqiza isebenzisa ulwazi lwayo olubanzi nobuchwepheshe bokukhiqiza uchungechunge lwamapayipi omoya-mpilo we-OEM. Lokhu kuzibophezela ekwenzeni okuhle kubonakala kubunjiniyela bokunemba kanye nezinyathelo eziqinile zokulawula ikhwalithi ezisetshenziswa epayipini ngalinye, okuqinisekisa ukwethembeka nokuphepha.
Ividiyo
Vacuum Insulated Piping
Ipayipi Elifakwe Ipayipi Levacuum (i-VI Piping), okuyipayipi elinejakhethi ye-Vacuum (VJ Piping), njengendawo Ephelele yokufaka ukufakwa kwamapayipi okuvamile. Uma kuqhathaniswa nokufakwa kwamapayipi okuvamile, inani lokuvuza lokushisa kwe-VIP liyizikhathi ezingu-0.05~0.035 kuphela zokuvala amapayipi okuvamile. Yonga kakhulu amandla nezindleko zamakhasimende.
Uchungechunge lomkhiqizo we-Vacuum Jacketed Pipe, Vacuum Jacketed Hose, Vacuum Jacketed Valve, kanye ne-Phase Separator e-HL Cryogenic Equipment Company, edlule ochungechungeni lwezindlela zokwelapha eziqine kakhulu, zisetshenziselwa ukudlulisa umoya-mpilo owuketshezi, i-nitrogen eyi-liquid, i-argon ewuketshezi, i-liquid hydrogen, i-helium ewuketshezi, i-LEG ne-LNG, futhi le mikhiqizo isetshenziselwa okokusebenza kwe-cryogenic (isb. amathangi e-cryogenic, ama-dewars namabhokisi abandayo njll.) ezimbonini zokuhlukanisa umoya, amagesi, ezondiza, zikagesi, i-superconductor, ama-chips, i-automation assembly, ukudla & isiphuzo, ikhemisi, isibhedlela, i-biobank, irabha, ubunjiniyela bamakhemikhali obusha bokukhiqiza, insimbi nensimbi, kanye nocwaningo lwesayensi njll.
Izinhlobo ezintathu zokuxhuma ze-VI Piping
Izinhlobo ezintathu zokuxhuma lapha zisebenza kuphela ezindaweni zokuxhuma phakathi kwamapayipi we-VI. Lapho i-VI Pipe ixhuma nemishini, ithangi lokugcina nokunye, ukuxhuma okuhlangene kungenziwa ngokwezifiso ngokuvumelana nezidingo zamakhasimende.
Ukuze kwandiswe izidingo ezihlukene zamakhasimende, i-Vacuum Insulated Pipe isungule izinhlobo ezintathu zokuxhuma, okuyi-Vacuum Bayonet Connection Type with Clamps, Vacuum Bayonet Connection Type with Flanges kanye nama-Bolt kanye Nohlobo Lokuxhumana Olushiselwe. Zinezinzuzo ezihlukene futhi zifanele izimo zokusebenza ezihlukene.
Ububanzi Besicelo
VI-acuum Bayonet Connection Uhlobo olunama-Clamps | Vacuum Bayonet Connection Uhlobo olunama-Flanges nama-Bolts | Uhlobo Lokuxhuma Olushiselwe | |
Uhlobo Lokuxhumana | Ama-clamps | Ama-Flanges nama-Bolts | Weld |
Uhlobo lwe-Insulation emajoyini | Vacuum | Vacuum | I-Perlite noma i-Vacuum |
Ukwelashwa Kwe-Insulated Esizeni | No | No | Yebo, i-perlite igcwaliswe noma ikhiphe iphampu Kuma-Sleeves Angagqunyiwe emajoyintini. |
Ububanzi Begama Lepayipi Elingaphakathi | DN10(3/8")~DN25(1") | DN10(3/8")~DN80(3") | DN10(3/8")~DN500(20") |
I-Design Pressure | ≤8 ibha | ≤16 ibha | ≤64 ibha |
Ukufakwa | Kulula | Kulula | Weld |
Izinga Lokushisa Lokuklama | -196℃~ 90℃ (LH2 & LHe:-270℃ ~ 90℃) | ||
Ubude | 1 ~ 8.2 imitha/ama-pcs | ||
Okubalulekile | 300 Series Stainless Steel | ||
Maphakathi | LN2, LOX, LAr, LHe, LH2, LEG, LNG |
Ububanzi Bomkhiqizo Wokunikezela
Umkhiqizo | Ukucaciswa | Vacuum Bayonet Connection nge Clamps | Vacuum Bayonet Connection nge Flanges kanye Bolts | I-Weld Insulated Connection |
Vacuum Insulated Pipe | DN8 | YEBO | YEBO | YEBO |
I-DN15 | YEBO | YEBO | YEBO | |
DN20 | YEBO | YEBO | YEBO | |
DN25 | YEBO | YEBO | YEBO | |
I-DN32 | / | YEBO | YEBO | |
I-DN40 | / | YEBO | YEBO | |
I-DN50 | / | YEBO | YEBO | |
DN65 | / | YEBO | YEBO | |
I-DN80 | / | YEBO | YEBO | |
I-DN100 | / | / | YEBO | |
I-DN125 | / | / | YEBO | |
I-DN150 | / | / | YEBO | |
I-DN200 | / | / | YEBO | |
I-DN250 | / | / | YEBO | |
I-DN300 | / | / | YEBO | |
I-DN400 | / | / | YEBO | |
I-DN500 | / | / | YEBO |
Isici sobuchwepheshe
I-Compensator Design Pressure | ≥4.0MPa |
Izinga Lokushisa Lokuklama | -196C~90℃ (LH2& LHe: -270~90℃) |
I-Ambient Temperature | -50 ~ 90℃ |
Isilinganiso sokuvuza kweVacuum | ≤1*10-10Pa*m3/S |
Vacuum Level ngemva kwesiqinisekiso | ≤0.1 Pa |
Indlela Ye-Insulated | I-High Vacuum Multi-Layer Insulation. |
I-Adsorbent ne-Getter | Yebo |
NDE | 100% Ukuhlolwa kwe-Radiographic |
Ingcindezi Yokuhlola | I-1.15 Times Design Pressure |
Maphakathi | LO2, LN2, LAr, LH2,LHe,LEG,LNG |
Uhlelo Lokufaka Amapayipi Aguquguqukayo Anamandla futhi Aqinile
I-Vacuum Insulated (VI) Uhlelo Lokufaka Amapayipi lungahlukaniswa nge-Dynamic kanye ne-Static VI Piping System.
lI-Static VI Piping iqedwe ngokuphelele efektri yokukhiqiza.
lI-Dynamic VI Piping inikezwa indawo yokukhipha umoya ozinzile ngokumpompa ngokuqhubekayo uhlelo lwephampu ye-vacuum esizeni, futhi okunye ukuhlanganisa nokwelashwa kwenqubo kusesembonini yokukhiqiza.
I-Dynamic Vacuum Insulated Piping System | I-Static Vacuum Insulated Piping System | |
Isingeniso | Idigri yevacuum ye-vacuum interlayer igadwa ngokuqhubekayo, futhi iphampu yevacuum ilawulwa ngokuzenzekelayo ukuze ivuleke futhi ivalwe, ukuze kuqinisekiswe ukuzinza nokusebenza kwe-vacuum degree. | Ama-VJP aqeda umsebenzi wokufaka i-vacuum embonini yokukhiqiza. |
Izinzuzo | Ukugcinwa kwe-vacuum kuzinzile, ngokuyisisekelo kuqeda ukulungiswa kwe-vacuum ekusebenzeni okuzayo. | Ukutshalwa kwezimali okongayo okwengeziwe kanye nokufakwa okulula esizeni |
Vacuum Bayonet Connection Uhlobo olunama-Clamps | Kuyasebenziseka | Kuyasebenziseka |
Vacuum Bayonet Connection Uhlobo olunama-Flanges nama-Bolts | Kuyasebenziseka | Kuyasebenziseka |
Uhlobo Lokuxhuma Olushiselwe | Kuyasebenziseka | Kuyasebenziseka |
Isistimu Yamapayipi Evacuum Insulated Amandla: Ihlanganisa Amapayipi Angagqunywanga Ngevacuum, Amapayipi Agxumayo kanye Nesistimu Yephampu Yevacuum (okuhlanganisa amaphampu evacuum, amavalvu e-solenoid kanye namageji e-vacuum).
Ukucaciswa kanye Nemodeli
HL-PX-X-000-00-X
Ibhrendi
I-HL Cryogenic Equipment
Incazelo
PD: Ipayipi le-VI elinamandla
PS: Ipayipi le-VI elimile
Uhlobo Lokuxhumana
W: Uhlobo olushiselwe
B: Vacuum Uhlobo lwe-Bayonet olunama-Clamps
F: Vacuum Uhlobo lwe-Bayonet olunamaFlange nama-Bolt
Ububanzi Begama Lepayipi Elingaphakathi
010:DN10
…
080:DN80
…
500: DN500
I-Design Pressure
08:8 nxa
16:16;
25:25 nxa
32:32 nxa
40:40 nxa
Izinto zepayipi elingaphakathi
A: SS304
B: SS304L
C: SS316
I-D: SS316L
E:Okunye
I-Static Vacuum Insulated Piping System
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
I-HLPSB01008X | Uhlobo Lokuxhuma Lwe-Bayonet Olunezinsimbi Zohlelo Lokufaka Amapayipi Okufakwayo Kwe-Vacuum Okumile | DN10, 3/8" | 8 ibha
| 300 Series Stainless Steel | I-ASME B31.3 | X: Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
I-HLPSB01508X | DN15, 1/2" | |||||
I-HLPSB02008X | DN20, 3/4" | |||||
I-HLPSB02508X | I-DN25, 1" |
Ububanzi Begama Lepayipi Langaphakathi:Kunconyiwe ≤ DN25 noma 1". Noma khetha Uhlobo Lokuxhuma Lwe-Vacuum Bayonet olunamaFlange nama-Bolt (kusuka ku-DN10, 3/8" ukuya ku-DN80, 3"), Uhlobo Lokuxhuma Okushiselwe i-VIP (kusuka ku-DN10, 3/8" ukuya ku-DN500, 20" )
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Ingcindezi Yokuklama: Kunconyiwe ≤ 8 amabha. Noma khetha Uhlobo Lokuxhuma Lwe-Bayonet Yevacuum elinama-Flange nama-Bolt (≤16 ibha), Uhlobo Loxhumano Olushiselwe (≤64 ibha)
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
I-HLPSF01000X | Uhlobo Loxhumano Lwe-Bayonet Yevacuum Nama-Flange kanye nama-Bolt Ohlelo Lokufaka Amapayipi Okufakwayo Kwe-Vacuum Okumile | DN10, 3/8" | 8~16 ibha | 300 Series Stainless Steel | I-ASME B31.3 | 00: Ingcindezi Yokuklama. 08 yi 8bar, 16 ngu16bar.
X: Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
I-HLPSF01500X | DN15, 1/2" | |||||
I-HLPSF02000X | DN20, 3/4" | |||||
I-HLPSF02500X | I-DN25, 1" | |||||
I-HLPSF03200X | I-DN32, 1-1/4" | |||||
I-HLPSF04000X | I-DN40, 1-1/2" | |||||
I-HLPSF05000X | I-DN50, 2" | |||||
I-HLPSF06500X | DN65, 2-1/2" | |||||
I-HLPSF08000X | I-DN80, 3" |
Ububanzi Begama Lepayipi Langaphakathi:Kunconyiwe ≤ DN80 noma 3". Noma khetha Uhlobo Loxhumano Olushiselwe (kusuka ku-DN10, 3/8" ukuya ku-DN500, 20"), Uhlobo Lokuxhuma Lwe-Bayonet Vacuum olunama-Clamps (kusuka ku-DN10, 3/8" kuya ku-DN25, 1").
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Ingcindezi Yokuklama: Kunconyiwe ≤ 16 ibha. Noma khetha Uhlobo Lokuxhumana Olushiselwe (≤64 ibha).
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
I-HLPSW01000X | Uhlobo Lokuxhuma Olushiselwe Lohlelo Lokufaka Amapayipi Okufakwayo Kwe-Vacuum Okumile | DN10, 3/8" | 8 ~ 64 ibha | 300 Series Stainless Steel | I-ASME B31.3 | 00: I-Design Pressure 08 yi 8bar, 16 ngu 16bar, kanye nama-25, 32, 40, 64.
X: Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
I-HLPSW01500X | DN15, 1/2" | |||||
I-HLPSW02000X | DN20, 3/4" | |||||
I-HLPSW02500X | I-DN25, 1" | |||||
I-HLPSW03200X | I-DN32, 1-1/4" | |||||
I-HLPSW04000X | I-DN40, 1-1/2" | |||||
I-HLPSW05000X | I-DN50, 2" | |||||
I-HLPSW06500X | DN65, 2-1/2" | |||||
I-HLPSW08000X | I-DN80, 3" | |||||
HI-LPSW10000X | I-DN100, 4" | |||||
HI-LPSW12500X | I-DN125, 5" | |||||
HI-LPSW15000X | I-DN150, 6" | |||||
HI-LPSW20000X | I-DN200, 8" | |||||
HI-LPSW25000X | I-DN250, 10" | |||||
HI-LPSW30000X | I-DN300, 12" | |||||
HI-LPSW35000X | I-DN350, 14" | |||||
HI-LPSW40000X | I-DN400, 16" | |||||
HI-LPSW45000X | I-DN450, 18" | |||||
HI-LPSW50000X | I-DN500, 20" |
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
I-Dynamic Vacuum Insulated Piping System
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
HLPDB01008X | Uhlobo Lokuxhuma Lwe-Bayonet Olunezinsimbi Zohlelo Lokufaka Amapayipi Okufakwayo Kwe-Vacuum Okumile | DN10, 3/8" | 8 ibha | 300 Series Stainless Steel | I-ASME B31.3 | X:Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
I-HLPDB01508X | DN15, 1/2" | |||||
I-HLPDB02008X | DN20, 3/4" | |||||
I-HLPDB02508X | I-DN25, 1" |
Ububanzi Begama Lepayipi Langaphakathi:Kunconyiwe ≤ DN25 noma 1". Noma khetha Uhlobo Lokuxhuma Lwe-Vacuum Bayonet olunamaFlange nama-Bolt (kusuka ku-DN10, 3/8" ukuya ku-DN80, 3"), Uhlobo Lokuxhuma Okushiselwe i-VIP (kusuka ku-DN10, 3/8" ukuya ku-DN500, 20" )
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Ingcindezi Yokuklama: Kunconyiwe ≤ 8 amabha. Noma khetha Uhlobo Lokuxhuma Lwe-Bayonet Yevacuum elinama-Flange nama-Bolt (≤16 ibha), Uhlobo Loxhumano Olushiselwe (≤64 ibha)
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
Isimo samandla:Isizinda sidinga ukuhlinzeka ngamandla kumaphampu evacuum futhi sazise i-HL Cryogenic Equipment ngolwazi lwasendaweni lukagesi (I-Voltage ne-Hertz)
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
HLPDF01000X | Uhlobo Loxhumano Lwe-Bayonet Yevacuum Nama-Flange kanye nama-Bolt Ohlelo Lokufaka Amapayipi Okufakwayo Kwe-Vacuum Okumile | DN10, 3/8" | 8~16 ibha | 300 Series Stainless Steel | I-ASME B31.3 | 00: Ingcindezi Yokuklama. 08 yi 8bar, 16 ngu16bar.
X: Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
I-HLPDF01500X | DN15, 1/2" | |||||
I-HLPDF02000X | DN20, 3/4" | |||||
I-HLPDF02500X | I-DN25, 1" | |||||
I-HLPDF03200X | I-DN32, 1-1/4" | |||||
I-HLPDF04000X | I-DN40, 1-1/2" | |||||
I-HLPDF05000X | I-DN50, 2" | |||||
I-HLPDF06500X | DN65, 2-1/2" | |||||
I-HLPDF08000X | I-DN80, 3" |
Ububanzi Begama Lepayipi Langaphakathi:Kunconyiwe ≤ DN80 noma 3". Noma khetha Uhlobo Loxhumano Olushiselwe (kusuka ku-DN10, 3/8" ukuya ku-DN500, 20"), Uhlobo Lokuxhuma Lwe-Bayonet Vacuum olunama-Clamps (kusuka ku-DN10, 3/8" kuya ku-DN25, 1").
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Ingcindezi Yokuklama: Kunconyiwe ≤ 16 ibha. Noma khetha Uhlobo Lokuxhumana Olushiselwe (≤64 ibha).
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
Isimo samandla:Isizinda sidinga ukuhlinzeka ngamandla kumaphampu evacuum futhi sazise i-HL Cryogenic Equipment ngolwazi lwasendaweni lukagesi (I-Voltage ne-Hertz)
Mi-odel | UkuxhumanaUhlobo | Ububanzi Begama Lepayipi Elingaphakathi | I-Design Pressure | Okubalulekilewe Inner Pipe | Okujwayelekile | Phawula |
HLPDW01000X | Uhlobo Lokuxhuma Olushiselwe Lohlelo Lwepayipi Oluguquguqukayo Lwevacuum Engafakwanga | DN10, 3/8" | 8 ~ 64 ibha | Insimbi Engagqwali 304, 304L, 316, 316L | I-ASME B31.3 | 00: I-Design Pressure 08 yi 8bar, 16 ngu 16bar, kanye nama-25, 32, 40, 64. .
X: Impahla yepayipi elingaphakathi. A yi-304, B ingu-304L, C ngu-316, I-D ingu-316L, U-E omunye. |
HLPDW01500X | DN15, 1/2" | |||||
HLPDW02000X | DN20, 3/4" | |||||
HLPDW02500X | I-DN25, 1" | |||||
I-HLPDW03200X | I-DN32, 1-1/4" | |||||
I-HLPDW04000X | I-DN40, 1-1/2" | |||||
I-HLPDW05000X | I-DN50, 2" | |||||
I-HLPDW06500X | DN65, 2-1/2" | |||||
I-HLPDW08000X | I-DN80, 3" | |||||
HLPDW10000X | I-DN100, 4" | |||||
HLPDW12500X | I-DN125, 5" | |||||
HLPDW15000X | I-DN150, 6" | |||||
HLPDW20000X | I-DN200, 8" | |||||
HLPDW25000X | I-DN250, 10" | |||||
HLPDW30000X | I-DN300, 12" | |||||
HLPDW35000X | I-DN350, 14" | |||||
HLPDW40000X | I-DN400, 16" | |||||
HLPDW45000X | I-DN450, 18" | |||||
HLPDW50000X | I-DN500, 20" |
Ububanzi Begama Lepayipi Langaphandle:Kunconywe Izinga Lebhizinisi le-HL Cryogenic Equipment. Ingabuye ikhiqizwe ngokwezidingo zekhasimende.
Impahla Yepayipi Elingaphandle: Ngaphandle kwesidingo esikhethekile, impahla yepayipi yangaphakathi nepayipi yangaphandle izokhethwa ngokufanayo.
Isimo samandla:Isizinda sidinga ukuhlinzeka ngamandla kumaphampu evacuum futhi sazise i-HL Cryogenic Equipment ngolwazi lwasendaweni lukagesi (I-Voltage ne-Hertz)