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RHZ1-2OL(AS)-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV Specifications)
RHZ1-2OL(AS)-AL are enhanced flame-retardant, low smoke, zero halogen (LSZH) medium voltage cables with aluminum conductors, manufactured under IEC 60502-2 standards. They feature a double layer of insulation for improved electrical performance and are intended for permanent installations in critical infrastructure such as subways, hospitals, and data centers where superior fire resistance and minimal emission of toxic gases are essential.
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Voltage Rating
Uo/U
8.7/15 (17.5) KV
12/20 (24)KV
18/30 (36)KV - Temperature Rating -40°C to +90°C
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Minimum Bending Radius
20 x overall diameter during installation
15 x overall diameter installed
Construction
Technical Specifications
Quality Control
Application
Construction
RHZ1-2OL(AS)-AL Medium Voltage Power Cable Constrution
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Conductor
Class 2 stranded aluminium with longitudinal water tightness
Insulation
XLPE (Cross-Linked Polyethylene)
Conductor Screen
Semi-conductive material
Insulation Screen
Semi-conductive material
Longitudinal Waterblocking
Water-swellable tape
Screen
Copper wires
Sheath
PO (Polylefin) DMZ2/ST8
Sheath Color
Red with/Green stripes
Manufacturer Standard
IEC 60502-2, HD 620 10E-5, EN 60228
Flame retardant
CPR Classification Cca s1b, d2, a1
Halogen Free
IEC 60754-1/2
UV Resistant
UNE 211605, HD 605, Subclause 2.2.13
Technical Specifications
RHZ1-2OL(AS)-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV Specifications)
RHZ1-2OL(AS)-AL 8.7/15 (17.5) KV
RHZ1-2OL(AS)-AL 12/20 (24)KV
RHZ1-2OL(AS)-AL 18/30 (36)KV
|
No of Cores |
Nominal Cross Section Area |
Nominal Conductor Diameter |
Nominal Thickness of Insulation |
Nominal Diameter Over insulation |
Nominal Metallic Screen Cross Section |
Nominal Outer Sheath Thickness |
Nominal Outer Diameter |
Approximate Weight |
| mm2 | mm | mm | mm | mm2 | mm | mm | kg/km | |
| 1 | 50 | 8.0 | 4.5 | 18.2 | 16 | 2.5 | 28.1 | 720 |
| 1 | 95 | 11.2 | 4.5 | 21.4 | 16 | 2.5 | 31.2 | 1100 |
| 1 | 150 | 14.0 | 4.5 | 24.2 | 16 | 2.7 | 34.1 | 1440 |
| 1 | 240 | 17.9 | 4.5 | 28.1 | 16 | 3.0 | 37.8 | 1780 |
| 1 | 400 | 23.1 | 4.5 | 33.3 | 16 | 3.0 | 42.8 | 2300 |
| 1 | 630 | 29.1 | 4.5 | 39.6 | 16 | 3.0 | 50.3 | 3190 |
|
No of Cores |
Nominal Cross Section Area |
Nominal Conductor Diameter |
Nominal Thickness of Insulation |
Nominal Diameter Over insulation |
Nominal Metallic Screen Cross Section |
Nominal Outer Sheath Thickness |
Nominal Outer Diameter |
Approximate Weight |
| mm2 | mm | mm | mm | mm2 | mm | mm | kg/km | |
| 1 | 50 | 8.0 | 5.5 | 20.2 | 16 | 2.5 | 28.0 | 850 |
| 1 | 95 | 11.2 | 5.5 | 23.4 | 16 | 2.7 | 32.0 | 1100 |
| 1 | 150 | 14.0 | 5.5 | 26.2 | 16 | 3.0 | 34.0 | 1400 |
| 1 | 240 | 17.9 | 5.5 | 30.1 | 16 | 3.0 | 38.0 | 1800 |
| 1 | 400 | 23.1 | 5.5 | 35.3 | 16 | 3.0 | 43.0 | 2500 |
| 1 | 630 | 29.1 | 5.5 | 41.6 | 16 | 3.0 | 50.0 | 3500 |
|
No of Cores |
Nominal Cross Section Area |
Nominal Conductor Diameter |
Nominal Thickness of Insulation |
Nominal Diameter Over insulation |
Nominal Metallic Screen Cross Section |
Nominal Outer Sheath Thickness |
Nominal Outer Diameter |
Approximate Weight |
| mm2 | mm | mm | mm | mm2 | mm | mm | kg/km | |
| 1 | 50 | 8.0 | 5.5 | 25.2 | 16 | 2.7 | 32.0 | 900 |
| 1 | 95 | 8.0 | 5.5 | 28.4 | 16 | 3.0 | 35.0 | 1200 |
| 1 | 150 | 8.0 | 5.5 | 31.2 | 16 | 3.0 | 38.0 | 1500 |
| 1 | 240 | 8.0 | 5.5 | 35.1 | 16 | 3.0 | 43.0 | 1900 |
| 1 | 400 | 8.0 | 5.5 | 40.3 | 16 | 3.0 | 48.0 | 2750 |
| 1 | 630 | 8.0 | 5.5 | 46.6 | 16 | 3.0 | 56.0 | 3500 |
Quality Control
RHZ1-2OL(AS)-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV Specifications)
Raw Material Test
NPC has always chosen raw material suppliers who have a good reputation, possess stable supply capabilities and have passed international quality system certifications (such as ISO 9001). And establish a long-term cooperative relationship with it, forming a stable and reliable raw material supply chain.
We will ensure that all raw materials are subject to strict inspection procedures upon entry to the factory, and can only be stored in the warehouse after they have been confirmed to meet the standards.
Process inspection
NPC has strict quality control procedures for each process in the cable production process.
Process documents: Develop detailed process flow and operation instructions to clarify the operating specifications and quality standards of each process.
Equipment calibration: Regularly calibrate key equipment such as wire drawing machines, stranding machines, extruders, and diameter gauges to ensure that the accuracy meets the requirements.
First piece confirmation: Before each batch of production, the first piece is trial-produced to confirm that the process parameters, product dimensions, electrical performance, etc. meet the standards before mass production can be carried out.
Finished Product
Inspectors conduct ex-factory inspections on cables according to relevant standards and corresponding product inspection specifications to ensure that each ex-factory product complies with the process regulations.
Application
RHZ1-2OL(AS)-AL is a halogen-free, flame-retardant, CPR-rated medium-voltage cable suitable for connecting trunk lines in power distribution networks, power generation equipment, and industrial equipment. It can be directly laid underground, outdoors, indoors, or in cable ducts, and is particularly suitable for locations with high requirements for fire safety and environment.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
Wires and Cables packaging (4)
Wires and Cables packaging (5)
Wires and Cables packaging (6)
Wires and Cables packaging (7)
Wires and Cables packaging (8)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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