Multi-Layer 15kv - 46kv Spacer Cable
Multi-Layer 15kv - 46kv Spacer Cable image
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Basic Info.
Product Description
Hebei Huatong Group Multi-Layer 15kV – 46kV Spacer Cable
Application
Used for primary and secondary overhead distribution where limited space is available or desirable for rights of way. Installed as an uninsulated conductor; however, covering is effective in preventing direct shorts and instantaneous flashovers should tree limbs or other objects contact conductors.
Tree Wire – Used for spans where trees crowd the right-of-way, such as in wooded residential areas, when a minimum of interference with the environment is desired. Covering minimizes power outages due to conductor contact with tree limbs, reducing the need for frequent or severe trimming.
Spacer Cable – Installed with other spacer cables and a supporting messenger through a series of space-maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation; particularly useful in congested areas.
Specification
15kV spacer cable-tree wire meets or exceeds all applicable ICEA specifications and the following ASTM
specifications:
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes.
• B-231 Aluminum Conductors, Concentric-Lay-Stranded.
• B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• B-498 Zinc-Coated (Galvanized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR).
Structure
1. All-aluminum (alloy 1350-H19, compressed) or ACSR conductors, concentrically stranded. Available with high density (HD)
2. polyethylene or crosslinked polyethylene (XLPE) covering.
Core number | Single core |
Conductor | Compact stranded hard drawn Aluminum wire Conductor sizes 35 mm2 up to 240 mm2 |
Conductor shield | Semi conducting cross-linked polyethylene |
Insulation | Cross-linked polyethylene Colour : Natural |
sheath | Track resistant cross-linked polyethylene Colour : Black |
Classification | Normal operation 90 °C Emergency overload conditions 130 °C Short circuit conditions 250°C Voltage rating 25 Kv.( Phase to Phase ) |
Test voltage | 49KV for 5 minutes |
standard | ICEA S-66-524 /MEA/PEA |
minal Sectional Area mm2 |
Minimum Number of wire NO |
Diameter of Conductor (approx.) mm |
Thickness of Insulation mm |
Thickness of sheath mm |
Overall Diameter (approx.) mm |
Maximum DC. conductor resistance at 20°C Ω / km |
Minimum insulation resistance at 15.6°C |
Allowable ampacities in free air at 40°C ambient A |
Cable weight (approx.) kg / km |
25 | 6 | 5.90 | 4.45 | 3.18 | 22.5 | 1.2000 | 3,153 | 118 | 393 |
35 | 6 | 6.95 | 4.45 | 3.18 | 24.5 | 0.8680 | 2,890 | 148 | 443 |
50 | 6 | 8.33 | 4.45 | 3.18 | 25.5 | 0.6410 | 2,606 | 184 | 517 |
70 | 12 | 9.73 | 4.45 | 3.18 | 27.5 | 0.4430 | 2,375 | 227 | 599 |
95 | 15 | 11.45 | 4.45 | 3.18 | 29.0 | 0.3200 | 2,144 | 276 | 711 |
120 | 15 | 12.95 | 4.45 | 3.18 | 31.0 | 0.2530 | 1,952 | 318 | 831 |
150 | 15 | 14.27 | 4.45 | 3.18 | 32.5 | 0.2060 | 1,830 | 367 | 933 |
185 | 30 | 15.98 | 4.45 | 3.18 | 33.5 | 0.1640 | 1,694 | 425 | 1,073 |
240 | 30 | 18.47 | 4.45 | 3.18 | 36.5 | 0.1250 | 1,529 | 515 | 1,293 |
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