China Vacuum mkpuchi Pipe Series
Nkọwa nkenke ngwaahịa:
- Teknụzụ mkpuchi ikuku na-egbutu ọnụ maka ichekwa okpomọkụ dị elu
- Owuwu na-adịgide adịgide na corrosion na-eguzogide maka ntụkwasị obi ogologo oge
- Nhọrọ ndị a na-agbanwe agbanwe iji zute ihe ndị ụlọ ọrụ chọrọ
- Nrụpụta dị oke ọnụ na nke dị elu sitere na ụlọ ọrụ China na-eduga
Nkọwa nkọwa ngwaahịa: Dị ka ụlọ ọrụ mmepụta ihe na-eduga na China, anyị na-enwe nnukwu mpako na-eweta China Vacuum Insulation Pipe Series, ihe ngwọta dị elu nke e mere iji gboo mkpa nke ngwa mmepụta ihe. Ahịrị ngwaahịa a zuru oke na-agụnye teknụzụ mkpuchi ikuku na-egbu egbu, ihe owuwu na-adịgide adịgide, yana nhọrọ ndị nwere ike ịhazi ya, na-eme ka ọ bụrụ nhọrọ kacha mma maka ụlọ ọrụ na-achọ ihe mkpuchi mkpuchi ntụkwasị obi na arụmọrụ dị elu.
Teknụzụ mkpuchi mkpuchi nke ịkpụ-Edge: China Vacuum Insulation Pipe Series na-anya teknụzụ mkpuchi ikuku ọgbara ọhụrụ, nke na-ebelata mbufe ọkụ nke ọma ma na-echekwa okpomọkụ nke mmiri ndị a na-ebuga. Akụkụ a dị elu na-asụgharị iji mee ka ike dị mma na-ebelata okpomọkụ, na-eme ka ọ dị mma maka ụlọ ọrụ ebe nchekwa okpomọkụ dị oké mkpa maka ịrụ ọrụ usoro kachasị mma.
Nrụpụta na-adịgide adịgide na nke na-eguzogide corrosion: Ewuru ya maka ogologo ndụ na nkwụghachi, a na-eji ọkpọkọ mkpuchi ikuku anyị na-eji ihe ndị dị elu nke na-adịgide adịgide ma na-eguzogide corrosion. Nke a na-achọpụta na ọkpọkọ nwere ike iguzogide gburugburu ụlọ ọrụ mmepụta ihe siri ike ma nọgide na-arụ ọrụ kachasị mma n'ime ogologo ndụ ogologo oge, na-ebelata ụgwọ ọrụ nlekọta na ịba ụba arụmọrụ n'ozuzu ya.
Nhọrọ a na-agbanwe agbanwe iji zute ihe ndị achọrọ: N'ịghọta mkpa dị iche iche nke ngwa ụlọ ọrụ mmepụta ihe, China Vacuum Insulation Pipe Series na-enye nhọrọ nhazi iji nabata ihe ndị a chọrọ. Site na nha mkpuchi dị iche iche na dayameta ọkpọkọ dị iche iche, enwere ike ịhazi ahịrị ngwaahịa anyị iji gboo ihe pụrụ iche nke ụlọ ọrụ dị iche iche, na-enye ihe ngwọta na-agbanwe agbanwe maka ọtụtụ ngwa.
Nrụpụta dị ọnụ ahịa na ịdị elu dị elu: ụlọ ọrụ nrụpụta China anyị na-agba mbọ na-ebuga ngwaahịa dị oke ọnụ ma dị elu, na-edobe anyị dị ka onye mmekọ tụkwasịrị obi maka azụmaahịa na-achọ azịza mkpuchi ụlọ ọrụ a pụrụ ịdabere na ya. Site n'ịkwalite nka anyị na usoro mmepụta nke ọma yana ụkpụrụ njikwa mma siri ike, anyị na-ahụ na China Vacuum Insulation Pipe Series na-enye uru pụrụ iche na-emebighị ogo ma ọ bụ arụmọrụ.
N'ikpeazụ, China Vacuum Insulation Pipe Series na-eguzo dị ka ihe akaebe na ntinye aka anyị na mmepụta ihe ọhụrụ, ịdịte aka na ọnụ ahịa. Site na ijikọ teknụzụ mkpuchi ikuku na-egbu egbu, ihe owuwu na-adịgide adịgide, na nhọrọ ndị nwere ike ịhazi ya, ejiri ahịrị ngwaahịa a maka ịkwalite arụmọrụ ike, hụ na ntụkwasị obi ogologo oge, yana gboo mkpa dị iche iche nke ngwa ụlọ ọrụ, na-eme ka ọ bụrụ nhọrọ kacha mma maka azụmaahịa na-achọ elu. -arụmọrụ mkpuchi ihe ngwọta.
Vidiyo
Vacuum mkpuchi ọkpọkọ
Vacuum Insulated Pipe (VI Piping), ya bụ Vacuum Jacketed Pipe (VJ Piping), dị ka ihe ngbanwe zuru oke maka mkpuchi ọkpọkọ. N'iji ya na mkpuchi ọkpọkọ nke a na-ahụkarị, uru mgbapụta okpomọkụ nke VIP bụ naanị oge 0.05 ~ 0.035 nke mkpuchi ọkpọkọ. Chekwaa ike na ọnụ ahịa ndị ahịa nke ọma.
Usoro ngwaahịa nke Vacuum Jacketed Pipe, Vacuum Jacketed Hose, Vacuum Jacketed Valve, na Phase Separator na HL Cryogenic Equipment Company, nke gafere usoro ọgwụgwọ teknụzụ siri ike, na-eji maka ịnyefe oxygen mmiri mmiri, nitrogen mmiri mmiri, argon mmiri mmiri, mmiri mmiri hydrogen, mmiri mmiri helium, LEG na LNG, na ngwaahịa ndị a na-eje ozi maka cryogenic akụrụngwa (eg cryogenic tankị, dewars na coldboxes wdg) na ụlọ ọrụ nke ikuku nkewa, gas, ụgbọ elu, electronics, superconductor, ibe, akpaaka mgbakọ, nri & ihe ọṅụṅụ, ụlọ ahịa ọgwụ, ụlọ ọgwụ, biobank, roba, ihe ọhụrụ na-emepụta chemical engineering, iron & steel, na nchọpụta sayensị wdg.
Ụdị njikọ atọ nke ọkpọkọ VI
Ụdị njikọ atọ ebe a na-emetụta naanị ọnọdụ njikọ n'etiti ọkpọkọ VI. Mgbe VI Pipe jikọtara ya na akụrụngwa, tank nchekwa na ihe ndị ọzọ, enwere ike ịhazi njikọ njikọ dịka ihe ndị ahịa chọrọ.
Iji bulie mkpa dị iche iche nke ndị ahịa, Vacuum Insulated Pipe ewepụtala ụdị njikọ atọ, ya bụ Vacuum Bayone Connection Type with Clamps, Vacuum Bayone Connection Type with Flanges na Bolts na Welded Connection Type. Ha nwere uru dị iche iche ma dị mma maka ọnọdụ ọrụ dị iche iche.
Oke ngwa
| Vacuum Bayonetị Njikọ Ụdị na Clamps | Ụdị Njikọ Vacuum Bayonet nwere Flanges na Bolts | Ụdị Njikọ Welded | |
| Ụdị njikọ | Mkpọchi | Flanges na bolts | Weld |
| Ụdị mkpuchi na nkwonkwo | Vacuum | Vacuum | Perlite ma ọ bụ Vacuum |
| Ọgwụgwọ mkpuchi mkpuchi na saịtị | No | No | Ee, perlite jupụtara n'ime ma ọ bụ na-ekpochapụ mgbapụta site na mkpuchi mkpuchi mkpuchi na nkwonkwo. |
| Ọnụ ala dayameta nke Inner Pipe | DN10(3/8")~DN25(1") | DN10(3/8")~DN80(3") | DN10(3/8")~DN500(20") |
| Nrụgide imewe | ≤8 mmanya | ≤16 mmanya | ≤64 mmanya |
| Nwụnye | Mfe | Mfe | Weld |
| Imepụta okpomọkụ | -196℃~ 90℃ (LH2 & LHe：-270℃ ~ 90℃) | ||
| Ogologo | 1 ~ 8.2 mita / pcs | ||
| Ihe onwunwe | 300 Series igwe anaghị agba nchara | ||
| Ọkara | LN2, LOX, LAr, LHe, LH2, Ụkwụ, LNG | ||
Oke ngwaahịa nke nnweta
| Ngwaahịa | Nkọwapụta | Njikọ Vacuum Bayonet na Clamps | Njikọ Vacuum Bayonet na Flanges na Bolts | Weld mkpuchi mkpuchi |
| Vacuum mkpuchi ọkpọkọ | DN8 | EE | EE | EE |
| DN15 | EE | EE | EE | |
| DN20 | EE | EE | EE | |
| DN25 | EE | EE | EE | |
| DN32 | / | EE | EE | |
| DN40 | / | EE | EE | |
| DN50 | / | EE | EE | |
| DN65 | / | EE | EE | |
| DN80 | / | EE | EE | |
| DN100 | / | / | EE | |
| DN125 | / | / | EE | |
| DN150 | / | / | EE | |
| DN200 | / | / | EE | |
| DN250 | / | / | EE | |
| DN300 | / | / | EE | |
| DN400 | / | / | EE | |
| DN500 | / | / | EE |
Njirimara nka nka
| Nrụgide Nrụpụta Nkwụghachi | ≥4.0MPa |
| Imepụta okpomọkụ | -196C ~ 90 ℃ (LH2& LHe:-270~90℃) |
| Okpomọkụ gburugburu | -50 ~ 90 ℃ |
| Ọnụego mkpofu agụụ | ≤1*10-10Pa*m3/S |
| Ọkwa Vacuum mgbe nkwa gachara | ≤0.1 Pa |
| Usoro mkpuchi | Igwe mkpuchi Multi-Layer High Vacuum. |
| Adsorbent na Getter | Ee |
| NDE | 100% Nyocha redio |
| Nnwale Nrụgide | 1.15 ugboro imewe nrụgide |
| Ọkara | LO2,LN2LAr, LH2LHe, LEG, LNG |
Sistemụ ọkpọkọ ekpochapụ ọkụ na static vacuum
Enwere ike ikewa sistemu ọkpọkọ ka ọ bụrụ Sistemụ ọkpọkọ ka ọ bụrụ Dynamic na Static VI Piping System.
lA rụchachara ọkpọkọ Static VI n'ụlọ ọrụ mmepụta ihe.
lThe Dynamic VI Piping na-enye ọnọdụ ohere kwụsiri ike site na ịgbapụta sistemu mgbapụta agụụ na-aga n'ihu na saịtị, yana ndị ọzọ mgbakọ na usoro ọgwụgwọ ka dị na ụlọ ọrụ nrụpụta.
| Sistemụ ọkpọkọ ekpochapụ ọkụ na-agbanwe agbanwe | Sistemụ ọkpọkọ mkpuchi mkpuchi Static Vacuum | |
| Okwu mmalite | A na-enyocha ogo oghere nke oghere interlayer mgbe niile, a na-achịkwa mgbapụta ikuku na-akpaghị aka imeghe ma mechie, iji hụ na nkwụsi ike na ịdị irè nke ogo agụụ. | VJP na-arụcha ọrụ mkpuchi ikuku na ụlọ ọrụ mmepụta ihe. |
| Uru | The agụụ njide ka kwụsiri ike, isi kpochapụ agụụ na-arụ ọrụ n'ọdịnihu. | Ego ndị ọzọ na-echekwa akụ na ụba na ntinye dị mfe na saịtị |
| Ụdị Njikọ Vacuum Bayonet nwere ihe mgbochi | Ngwa | Ngwa |
| Ụdị Njikọ Vacuum Bayonet nwere Flanges na Bolts | Ngwa | Ngwa |
| Ụdị Njikọ Welded | Ngwa | Ngwa |
Sistemụ ọkpọkọ ekpochapụrụ ọkụ na-adịghị agbanwe agbanwe: mejupụtara ọkpọkọ ndị na-ekpo ọkụ na-ekpo ọkụ, ihe ndị na-awụlikwa elu na Sistemụ mgbapụta Vacuum (gụnyere nfuli agụụ, valvụ solenoid na ihe nlele agụụ).
Nkọwapụta na Nlereanya
HL-PX-X-000-00-X
Ụdị
Ngwa HL Cryogenic
Nkọwa
PD: Dynamic VI Pipe
PS: Static VI Pipe
Ụdị njikọ
W: Ụdị welded
B: Vacuum Bayonet Ụdị na Clamps
F: Ụdị Vacuum Bayonet nwere Flanges na Bolts
Ọnụ ala dayameta nke Inner Pipe
010: DN10
…
080: DN80
…
500: DN500
Nrụgide imewe
08: 8 ụlọ
16:16 ụlọ mmanya
25:25 bar
32:32 bar
40: 40 bar
Ihe nke Inner Pipe
A: SS304
B: SS304L
C: SS316
D: SS316L
E: Ọzọ
Sistemụ ọkpọkọ mkpuchi mkpuchi Static Vacuum
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPSB01008X | Ụdị Njikọ Vacuum Bayonet nwere Mkpọchi maka Sistemụ Ọkụ Mkpuchi Mgbochi Static | DN10, 3/8" | 8 mmanya
| 300 Series igwe anaghị agba nchara | ASME B31.3 | X: Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPSB01508X | DN15, 1/2" | |||||
| HLPSB02008X | DN20, 3/4" | |||||
| HLPSB02508X | DN25, 1" |
Ọnụ ala dayameta nke ọkpọkọ ime:Akwadoro ≤ DN25 ma ọ bụ 1". )
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Nrụgide imewe: Akwadoro ≤ 8 mmanya. Ma ọ bụ họrọ Ụdị Njikọ Vacuum Bayonet na Flanges na Bolts (≤16 mmanya), Ụdị Njikọ Welded (≤64 mmanya)
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPSF01000X | Ụdị Njikọ Vacuum Bayonet nwere Flanges na bolts maka Sistemụ Ọkpụkpọ Mgbochi Static Vacuum. | DN10, 3/8" | 8-16 mmanya | 300 Series igwe anaghị agba nchara | ASME B31.3 | 00: Nrụgide imewe. 08 bụ 8 bar, 16 bụ 16 bar.
X: Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPSF01500X | DN15, 1/2" | |||||
| HLPSF02000X | DN20, 3/4" | |||||
| HLPSF02500X | DN25, 1" | |||||
| HLPSF03200X | DN32, 1-1/4" | |||||
| HLPSF04000X | DN40, 1-1/2" | |||||
| HLPSF05000X | DN50, 2" | |||||
| HLPSF06500X | DN65, 2-1/2" | |||||
| HLPSF08000X | DN80, 3" |
Ọnụ ala dayameta nke ọkpọkọ ime:Akwadoro ≤ DN80 ma ọ bụ 3".
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Nrụgide imewe: Akwadoro ≤ 16 mmanya. Ma ọ bụ họrọ Ụdị Njikọ Welded (≤64 mmanya).
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPSW01000X | Ụdị Njikọ Welded maka Sistemụ Ọkụ Mkpuchiri Static Vacuum | DN10, 3/8" | 8-64 mmanya | 300 Series igwe anaghị agba nchara | ASME B31.3 | 00: Nrụgide imewe 08 bụ 8 bar, 16 bụ 16 bar, na 25, 32, 40, 64.
X: Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPSW01500X | DN15, 1/2" | |||||
| HLPSW02000X | DN20, 3/4" | |||||
| HLPSW02500X | DN25, 1" | |||||
| HLPSW03200X | DN32, 1-1/4" | |||||
| HLPSW04000X | DN40, 1-1/2" | |||||
| HLPSW05000X | DN50, 2" | |||||
| HLPSW06500X | DN65, 2-1/2" | |||||
| HLPSW08000X | DN80, 3" | |||||
| HLPSW10000X | DN100, 4" | |||||
| HLPSW12500X | DN125, 5" | |||||
| HLPSW15000X | DN150, 6" | |||||
| HLPSW20000X | DN200, 8" | |||||
| HLPSW25000X | DN250, 10" | |||||
| HLPSW30000X | DN300, 12" | |||||
| HLPSW35000X | DN350, 14" | |||||
| HLPSW40000X | DN400, 16" | |||||
| HLPSW45000X | DN450, 18" | |||||
| HLPSW50000X | DN500, 20" |
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
Sistemụ ọkpọkọ ekpochapụ ọkụ na-agbanwe agbanwe
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPDB01008X | Ụdị Njikọ Vacuum Bayonet nwere Mkpọchi maka Sistemụ Ọkụ Mkpuchi Mgbochi Static | DN10, 3/8" | 8 mmanya | 300 Series igwe anaghị agba nchara | ASME B31.3 | X:Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPDB01508X | DN15, 1/2" | |||||
| HLPDB02008X | DN20, 3/4" | |||||
| HLPDB02508X | DN25, 1" |
Ọnụ ala dayameta nke ọkpọkọ ime:Akwadoro ≤ DN25 ma ọ bụ 1". )
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Nrụgide imewe: Akwadoro ≤ 8 mmanya. Ma ọ bụ họrọ Ụdị Njikọ Vacuum Bayonet na Flanges na Bolts (≤16 mmanya), Ụdị Njikọ Welded (≤64 mmanya)
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
Ọnọdụ ike:Saịtị ahụ kwesịrị ịnye ike na nfuli oghere ma gwa HL Cryogenic Equipment ozi ọkụ eletrik mpaghara (Voltage na Hertz)
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPDF01000X | Ụdị Njikọ Vacuum Bayonet nwere Flanges na bolts maka Sistemụ Ọkpụkpọ Mgbochi Static Vacuum. | DN10, 3/8" | 8-16 mmanya | 300 Series igwe anaghị agba nchara | ASME B31.3 | 00: Nrụgide imewe. 08 bụ 8 bar, 16 bụ 16 bar.
X: Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPDF01500X | DN15, 1/2" | |||||
| HLPDF02000X | DN20, 3/4" | |||||
| HLPDF02500X | DN25, 1" | |||||
| HLPDF03200X | DN32, 1-1/4" | |||||
| HLPDF04000X | DN40, 1-1/2" | |||||
| HLPDF05000X | DN50, 2" | |||||
| HLPDF06500X | DN65, 2-1/2" | |||||
| HLPDF08000X | DN80, 3" |
Ọnụ ala dayameta nke ọkpọkọ ime:Akwadoro ≤ DN80 ma ọ bụ 3".
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Nrụgide imewe: Akwadoro ≤ 16 mmanya. Ma ọ bụ họrọ Ụdị Njikọ Welded (≤64 mmanya).
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
Ọnọdụ ike:Saịtị ahụ kwesịrị ịnye ike na nfuli oghere ma gwa HL Cryogenic Equipment ozi ọkụ eletrik mpaghara (Voltage na Hertz)
| Model | NjikọỤdị | Ọnụ ala dayameta nke Inner Pipe | Nrụgide imewe | Ihe onwunwenke Inner Pipe | Ọkọlọtọ | kwuo |
| HLPDW01000X | Ụdị Njikọ Welded maka Sistemụ Ọpụpụ Mkpuchi Mkpuchi Vacuum | DN10, 3/8" | 8-64 mmanya | Igwe anaghị agba nchara 304, 304L, 316, 316L | ASME B31.3 | 00: Nrụgide imewe 08 bụ 8 bar, 16 bụ 16 bar, na 25, 32, 40, 64. .
X: Ihe nke Inner Pipe. A bụ 304, B bụ 304L. C bụ 316. D bụ 316L, E bụ nke ọzọ. |
| HLPDW01500X | DN15, 1/2" | |||||
| HLPDW02000X | DN20, 3/4" | |||||
| HLPDW02500X | DN25, 1" | |||||
| HLPDW03200X | DN32, 1-1/4" | |||||
| HLPDW04000X | DN40, 1-1/2" | |||||
| HLPDW05000X | DN50, 2" | |||||
| HLPDW06500X | DN65, 2-1/2" | |||||
| HLPDW08000X | DN80, 3" | |||||
| HLPDW10000X | DN100, 4" | |||||
| HLPDW12500X | DN125, 5" | |||||
| HLPDW15000X | DN150, 6" | |||||
| HLPDW20000X | DN200, 8" | |||||
| HLPDW25000X | DN250, 10" | |||||
| HLPDW30000X | DN300, 12" | |||||
| HLPDW35000X | DN350, 14" | |||||
| HLPDW40000X | DN400, 16" | |||||
| HLPDW45000X | DN450, 18" | |||||
| HLPDW50000X | DN500, 20" |
Ọnụ ala dayameta nke ọjà dị n'èzí:Akwadoro site n'ụkpụrụ ụlọ ọrụ nke HL Cryogenic Equipment. Enwere ike imepụta ya dịka ihe onye ahịa chọrọ.
Ihe nke Mpụpụ Pipe: Na-enweghị ihe pụrụ iche chọrọ, a ga-ahọrọ ihe nke ọkpọ n'ime na n'èzí.
Ọnọdụ ike:Saịtị ahụ kwesịrị ịnye ike na nfuli oghere ma gwa HL Cryogenic Equipment ozi ọkụ eletrik mpaghara (Voltage na Hertz)
