Romela ImeileMedium Voltage aerial bundle cables are most used formela e phahameng ea bobeliholim'a lipalo kapa joalo ka lijo tsa ho jella meahong ea bolulo.
Tloaelo:
IEC 60502-2---- Lithapo tsa motlakase tse nang le insulation e fetisitsoeng le lisebelisoa tsa tsona bakeng sa li-voltages tse lekantsoeng ho tloha ho 1 kV (Um = 1.2 kV) ho fihla ho 30 kV (Um = 36 kV) - Karolo ea 2: Lithapo tsa matla a lekantsoeng ho tloha ho 6 kV ( Um = 7.2 kV) ho fihla ho 30 kV (Um = 36 kV)
Palo ea li-volts:
6.35/11kV, 19/33kV
Kaho :
Mokhanni oa Mokhahlelo: Aluminiamo e khokahantsoeng ea Class 2
Skrine sa Conductor: Lera le pharalletseng la semi-conductive
Insulation: XLPE (Polyethylene e hokahantsoeng ka Sefapano)
Insulation Screen: Lera le fetisitsoeng la semi-conductive
Metallic Screen: Sekirini sa terata ea koporo kapa skrini sa theipi ea koporo
Searohanyi: Theipi e ruruhang semi-conductive
Kantle Sheath: HDPE (Polyethylene e phahameng ea Density)
Mokhanni oa Tšehetso:Lithapo tsa tšepe tse entsoeng ka masenke
MALA:
Insulated Core: Theipi e khubelu, e mosehla le e putsoa
Sheath e kantle: E ntšo
Litšobotsi:
Mocheso oa ho sebetsa: 90°C XLPE
Mocheso Range: -20°C PE sheath
Mocheso o Mokhuts'oane oa Potoloho ( 5 metsotsoana boholo ba nako): 250 ° C XLPE
Radius ea ho Kobela: 15 x bophara ba kakaretso
Ke Hobane'ng ha U Re Khetha?
Re hlahisa lithapo tsa boleng bo holimo ka ho sebelisa thepa ea boleng bo holimo:
Sehlopha se ruileng sa boiphihlelo se tseba seo u se batlang:
Semela se nang le lisebelisoa tse ntle le bokhoni ba ho netefatsa ho tsamaisoa ka nako:
IEC 60502 6.35/11 kV ABC bakeng sa Methapo ea Phano ea Overhead
| Palo ea Cores x Nominal Cross Section | Mokhanni oa Mokhahlelo | Yuniti ea ho Emisa Melaetsa | Tekanyetso e Tsoelang Pele ea Hona Joale ho 300°C Mocheso oa Ambient. | ||||
| Stranding | Sebaka sa Karolo sa Lebitso | Boemo bo phahameng ba ho hanyetsa Mokhanni | Stranding | Sebaka sa Karolo sa Lebitso | Ho roba Moroalo | ||
| Che.×mm² | Che.×mm | mm² | Ω/Km | Che.×mm | mm² | kN | A |
| 3X50 + 1X25 | 19/1.78 | 50 | 0.641 | 7/3.0 | 50 | 60 | 116 |
| 3X70 + 1X50 | 19/.14 | 70 | 0.443 | 7/3.15 | 50 | 62 | 210 |
| 3X95+ 1X50 | 19/2.52 | 95 | 0.32 | 7/3.0 | 50 | 60 | 173 |
| 3X185+1X120 | 37/2.52 | 185 | 0.164 | 7/4.67 | 120 | 150 | 259 |
| 3X150 +1X50 | 37/2.25 | 150 | 0.206 | 7/3.15 | 50 | 62 | 365 |
| 3X240 +1X50 | 61/2.25 | 240 | 0.125 | 7/3.15 | 50 | 62 | 500 |
IEC 60502 19/33 kV ABC bakeng sa Lithapo tsa Phano ea Overhead
| Palo ea Cores x Nominal Cross Section | Mokhanni oa Mokhahlelo | Yuniti ea ho Emisa Melaetsa | Lintlha tse tsoelang pele ho mocheso oa tikoloho ea 300°C | ||||
| Stranding | Sebaka sa Karolo sa Lebitso | Boemo bo phahameng ba ho hanyetsa Mokhanni | Stranding | Sebaka sa Karolo sa Lebitso | Ho roba Moroalo | ||
| Che.×mm² | Che.×mm | mm² | Ω/Km | Che.×mm | mm² | kN | A |
| 3X50 + 1X50 | 19/1.78 | 50 | 0.641 | 7/3.0 | 50 | 60 | 165 |
| 3X150+ 1X50 | 37/2.25 | 150 | 0.206 | 7/3.0 | 50 | 60 | 315 |
| 3X185+1X70 | 37/2.52 | 185 | 0.164 | 7/3.57 | 70 | 91 | 355 |
| 3X70 +1X50 | 19/2.14 | 7 | 0.443 | 7/3.15 | 50 | 62 | 250 |
| 3X150 +1X50 | 37/2.25 | 150 | 0.206 | 7/3.15 | 50 | 62 | 370 |
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