Home > Medium Voltage Power Cables > RHZ1-OL RHZ1-2OL 6/10 (12) kV Aluminum XLPE insulated LSZH Cable

RHZ1-OL RHZ1-2OL 6/10 (12) kV Aluminum XLPE insulated LSZH Cable

Application

Medium voltage cables for distribution networks; also for connection to generation units, and for plant and process connections. To be laid directly in the ground, outdoors, indoors, and in cable ducts.

Construction

Conductor: Aluminum, Class 2, Circular Compacted Conductors
Conductor Screen: Non-metallic, Semi -conducting Compound
Insulation: Cross-Linked Polyethylene XLPE
Insulation Screen: Non-metallic, Semi-conducting Compound
Water blocking: Semi-conductive water blocking tape
Metallic Screen: Copper Wire & Copper Tape
Water blocking: water blocking tape
Outer Sheath: Polyolefin, PO (DMZ1, DMZ2, LSOH, LSZH), Black or Red

Note:

RHZ1-OL: Longitudinal water blocking over the insulation screen
RHZ1-2OL: Longitudinal water blocking in conductor and over insulation screen

Main Characteristics

Good electrical and mechanical properties.
Low dielectric loss factor and high insulation resistance.
The PO outer sheath provides adequate resistance to UV and abrasion.
Note: Flame-retardant propagation according to EN 60332-1-2.

Specification

IEC 60502-2 Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1kV (Um=1.2KV) up to 30kV (Um=36KV) – Part 2: Cables for Rated Voltages of 6kV (Um=7.2KV) and 30kV (Um=36kV).

UNE HD 620 S3 Distribution Cables with Extruded Insulation for Rated Voltages from 3.6/6(7.2)kV to 20.8/36(42)kV.

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No.of Cores and Cross Section	Conductor Diameter	Nominal Insulation Thickness	Approx. Overall Diameter	Approx.Weight	D.C.Resistance of Conductor at 20℃
mm²	mm	mm	mm	kg/km	Ω/km
1×50/16	8.1	3.4	26.8	796	0.641
1×95/16	11.6	3.4	30.1	1020	0.32
1×150/25	14.3	3.4	32.8	1312	0.206
1×240/25	18.3	3.4	37.8	1774	0.125
1×400/35	23.2	3.4	42.7	2422	0.0778

Application and case display

FAQ

How Do Water-Blocking Cables Work?

How do you calculate the minimum bending radius of cables?

Longitudinal Water Blocking vs. Lateral Water Blocking?

What is the minimum order quantity for the product?

What is the service life of cables?

What is the purpose of a metallic shield in MV and HV cables?

How Do Water-Blocking Cables Work?

Water-blocking cables are essential for ensuring reliable operation in environments with high levels of moisture or frequent water contact. These cables employ water-blocking techniques to effectively prevent water ingress, protecting them from damage and prolonging their lifespan.

How do you calculate the minimum bending radius of cables?

The bend radius refers to the curved shape in which an electrical cable can be bent or curved without sustaining damage. To determine the minimum bend radius for cables, apply the following formula: Minimum Bend Radius = Cable Outer Diameter×Cable Multiplier. For example, if the outer diameter of a cable is 20mm, its minimum bending radius would be 20mm×6 = 120mm. Conversely, if an armored cable has an outer diameter of 30mm, its minimum bending radius would be 30mm×12 = 360mm.

Longitudinal Water Blocking vs. Lateral Water Blocking?

A longitudinally water blocking cable is designed with a barrier to prevent the spread of moisture along its length. Longitudinal water blocking stops water from migrating along the cable's core, typically between the conductor strands, insulation layers, or metallic screens. Lateral water blocking ensures that water cannot penetrate the cable in the event that the sheathing is pierced or damaged. Radial water blocking prevents water from penetrating the cable's outer sheath or insulation layers, thereby stopping it from entering the cable structure entirely. Longitudinal water blocking can be achieved through various methods, including the application of water-blocking tapes and powders. These are frequently located on either side of a metallic screen and conductor. Lateral water blocking is typically accomplished by applying a layer of aluminum/polyester tape to the underside of the outer sheath.

What is the minimum order quantity for the product?

The minimum order quantity for low and medium voltage cables is 200 meters, whereas for high voltage cables, it is 2000 meters. Should the order quantity fall below the MOQ, however, if the factory has stock, we can still supply it.

What is the service life of cables?

The design life of power cables is typically 20 to 30 years; however, this can vary significantly based on factors such as installation, environmental conditions, and the quality of the cable.

What is the purpose of a metallic shield in MV and HV cables?

Medium and high voltage power cables, typically those in circuits exceeding 2kV, usually feature a shield layer made of copper or aluminum tape. Similar to their use in low voltage cables, metallic wires and tapes are employed to prevent electromagnetic interference. These shields effectively neutralize or significantly diminish the field currents surrounding the conductor or core. The capacitive and inductive charging currents induced under normal operating conditions are subsequently grounded by the metallic screen.

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Tel: +86-371-63395670

Email: info@starsunelectric.com

Address: No. 1207, Building B, No. 96 Kangning Street, Zhengdong New District, Zhengzhou, China

RHZ1-OL RHZ1-2OL 6/10 (12) kV Aluminum XLPE insulated LSZH Cable

Product Parameters

Application and case display

FAQ

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