China OEM Porcelain insulator Suppliers –Medium Voltage Copper Cable– HolleyDetail:
Specifications
DESCRIPTION | UNIT | VALUE | VALUE | VALUE | VALUE | VALUE | VALUE | VALUE | |
1 | GENERAL |
| 1X70mm2 8.7 / 15 (17.5) kV | 1x120mm2, 8.7 / 15 (17.5) kV | 1×150 mm2, 8.7 / 15 (17.5) kV | 1x70mm2, 18/30 (36) kV | 1X120mm2 FOR 18/30 (36) kV | 1×185 mm2, 8.7 / 15 (17.5) kV | 1X185mm2 FOR 18/30 (36) kV |
| Standard |
| NTP IEC 60502-2 | NTP IEC 60502-2 | NTP IEC 60502-2 | NTP IEC 60502-2 | NTP IEC 60502-2 | NTP IEC 60502-2 | NTP IEC 60502-2 |
2 | DESIGNATION N2XSY | 1 x 70 mm2 | 1 x 120 mm2 | 1 x 150 mm2 | 1 x 70 mm2 | 1 x 120 mm2 | 1 x 185 mm2 | 1 x 185 mm2 | |
| Rated Voltage Uo / U (Uo) | kV | 8.7 / 15 (17.5) | 8.7 / 15 (17.5) | 8.7 / 15 (17.5) | 18/30 (36) | 18/30 (36) | 8.7 / 15 (17.5) | 18/30 (36) |
| Maximum temperature under normal conditions | ° C | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| Maximum short-circuit temperature (5 s. Maximum) | ° C | 250 | 250 | 250 | 250 | 250 | 250 | 250 |
3 | PHASE CONDUCTOR | ||||||||
| Standard | NTP IEC 60228 | NTP IEC 60228 | NTP IEC 60228 | NTP IEC 60228 | NTP IEC 60228 | NTP IEC 60228 | NTP IEC 60228 | |
| Material | Uncoated Annealed Copper | Uncoated Annealed Copper | Uncoated Annealed Copper | Uncoated Annealed Copper | Uncoated Annealed Copper | Uncoated Annealed Copper | Uncoated Annealed Copper | |
| Purity | % | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 |
| Nominal section | mm2 | 70 | 120 | 150 | 70 | 120 | 185 | 185 |
| Class | 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| Minimum number of wires | No. | 19 | 37 | 37 | 19 | 37 | 37 | 37 |
| Density at 20 ° C | gr / cm3 | 8.89 | 8.89 | 8.89 | 8.89 | 8.89 | 8.89 | 8.89 |
| Electrical resistivity at 20 ° C | Wmm2 / m | 0.017241 | 0.017241 | 0.017241 | 0.017241 | 0.017241 | 0.017241 | 0.017241 |
| Maximum electrical resistance in DC at 20 ° C | Ohm / km | 0.268 | 0.153 | 0.124 | 0.268 | 0.153 | 0.099 | 0.099 |
| Insulation | ||||||||
| Material | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | XLPE-TR (Tree Retardant Cross-linked Polyethylene) | ||
| Colour | natural | natural | natural | natural | natural | natural | natural | ||
| Average nominal thickness | mm | 4.5 | 4.5 | 4.5 | 8 | 8 | 4.5 | 8 | |
| Screen |
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| Semiconductor tape or extruded compound semiconductor on the conductor | YES | YES | YES | YES | YES | YES | YES | ||
| About the insulator | |||||||||
| Semiconductor tape or extruded composite semiconductor | YES | YES | YES | YES | YES | YES | YES | ||
| Copper wire braided mesh or tape with resistance less than 3 ohm/km at 20 ° C |
| YES | YES | YES | YES | YES | YES | YES |
| Sheath | |||||||||
| Material | PVC –ST2 | PVC – ST2 | PVC – ST2 | PVC –ST2 | PVC – ST2 | PVC – ST2 | PVC – ST2 | ||
| Colour | Red | Red | Red | Red | Red | Red | Red | ||
| Minimal thickness | mm | 1.2 | 1.2 | 1.3 | 1.4 | 1.5 | 1.4 | 1.6 | |
| Tests |
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| Insulation Continuity Test Voltage | kV | 30.5 | 30.5 | 30.5 | 63 | 63 | 30.5 | 63 | |
| Insulation construction process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process | Through simultaneous triple extrusion process |
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