33kV submarine cable manufacturer

Introduction to 33kV submarine cable

He 33kV submarine cable manufacturer plays a critical role in the development of modern marine energy infrastructure. In recent years, the expansion of offshore wind farms, Electrical interconnections between islands and oil and gas platforms have significantly increased the demand for medium voltage submarine cables..

Besides, the cables of 33kV have become a widely used standard in marine energy projects. For example, in offshore wind farms, These cables connect the turbines with the marine substations. Posteriorly, The energy is transmitted to the ground through high voltage cables.

Therefore, and 33kV submarine cable manufacturer must design cables capable of withstanding extremely demanding conditions, including underwater pressure, salt corrosion, mechanical impacts and thermal stresses. To achieve, Manufacturers use advanced materials such as copper or aluminum conductors, isolation XLPE o EPR, Heavy duty metal armor and durable outer covers.

Consequently, Choosing an experienced manufacturer is crucial to ensure safety, efficiency and durability of underwater electrical systems

Submarine cable

What is a 33kV submarine cable?

An underwater cable 33kV is an electrical cable specifically designed to transmit power underwater. Unlike ground cables, These cables must withstand extreme marine conditions for decades.

Generally, and 33kV submarine cable manufacturer Design the cable with multiple layers of protection. Each layer performs a specific function to ensure electrical performance and mechanical resistance.

The main layers include:

  • electrical conductor
  • conductive screen
  • electrical insulation
  • Metal screen
  • inner cover
  • mechanical armor
  • protective outer cover

Thanks to this multi-layer structure, the cable can operate safely during 25 a 30 years in underwater environments.

submarine cables

Typical structure of 33kV submarine cable

Conductor

The conductor is the main component responsible for carrying electrical current. And 33kV submarine cable manufacturer usually uses two materials:

  • copper
  • aluminum

Copper offers greater electrical conductivity and lower resistance. However, aluminum is lighter and reduces overall cable cost.

Isolation

Electrical insulation prevents current leakage and electrical failure. The most used materials are:

  • XLPE (Cross-linked polyethylene)
  • EPR (Ethylene propylene rubber)

XLPE insulation is known for its excellent thermal and electrical resistance. On the other hand, EPR offers greater flexibility and excellent moisture resistance.

Metal screen

The metal shield controls the electric field and improves the safety of the cable. It is usually made with copper wires or tapes..

submarine cable

Armor

Armor provides mechanical protection against damage during installation and operation.

The most common types include:

  • galvanized steel wire armor
  • aluminum wire armor

External cover

Finally, Outer sheath protects cable from corrosion, abrasion and marine organisms.

The most used materials are:

  • PE (polyethylene)
  • PVC (polyvinyl chloride)

submarine cable

IEC conductor sizes for 33kV submarine cable

And 33kV submarine cable manufacturer normally follows IEC standards for conductor size.

Driver section (mm²)Driver typeMaterialApplication
25compact circularCu / Alsmall underwater nets
35compact circularCu / Aloffshore connection
50compact circularCu / Almarine systems
70compact circularCu / Alelectric transmission
95compact circularCu / Alinterconnection
120compact circularCu / Almarine energy
150compact circularCu / Aloffshore
185compact circularCu / Alwind farms
240compact circularCu / Alindustrial projects
300segmentedCu / Altransmission
400segmentedCu / Alsubmarine interconnection
500segmentedCu / Alhigh capacity
630segmentedCu / Aloffshore wind farms
800segmentedCu / Alenergy projects
1000segmentedCu / Alhigh power transmission
1200segmentedCu / Almarine infrastructure
1600segmentedCu / Albig projects
2000segmentedCu / Alunderwater transmission

ASTM Conductors (20 AWG – 1000 MCM)

In addition to IEC sizes, many international projects require drivers based on standards ASTM / AWG. For this reason, and 33kV submarine cable manufacturer must be able to produce cables with these sizes.

ASTM sizeArea mm2ConductorIsolationArmorDeck
20 AWG0.52Cu / AlXLPE / EPRsteel / aluminumPE / PVC
18 AWG0.82Cu / AlXLPE / EPRsteel / aluminumPE / PVC
16 AWG1.31Cu / AlXLPE / EPRsteel / aluminumPE / PVC
14 AWG2.08Cu / AlXLPE / EPRsteel / aluminumPE / PVC
12 AWG3.31Cu / AlXLPE / EPRsteel / aluminumPE / PVC
10 AWG5.26Cu / AlXLPE / EPRsteel / aluminumPE / PVC
8 AWG8.37Cu / AlXLPE / EPRsteel / aluminumPE / PVC
6 AWG13.3Cu / AlXLPE / EPRsteel / aluminumPE / PVC
4 AWG21.2Cu / AlXLPE / EPRsteel / aluminumPE / PVC
3 AWG26.7Cu / AlXLPE / EPRsteel / aluminumPE / PVC
2 AWG33.6Cu / AlXLPE / EPRsteel / aluminumPE / PVC
1 AWG42.4Cu / AlXLPE / EPRsteel / aluminumPE / PVC
1/0 AWG53.5Cu / AlXLPE / EPRsteel / aluminumPE / PVC
2/0 AWG67.4Cu / AlXLPE / EPRsteel / aluminumPE / PVC
3/0 AWG85.0Cu / AlXLPE / EPRsteel / aluminumPE / PVC
4/0 AWG107Cu / AlXLPE / EPRsteel / aluminumPE / PVC
250 MCM127Cu / AlXLPE / EPRsteel / aluminumPE / PVC
300 MCM152Cu / AlXLPE / EPRsteel / aluminumPE / PVC
350 MCM177Cu / AlXLPE / EPRsteel / aluminumPE / PVC
400 MCM203Cu / AlXLPE / EPRsteel / aluminumPE / PVC
500 MCM253Cu / AlXLPE / EPRsteel / aluminumPE / PVC
600 MCM304Cu / AlXLPE / EPRsteel / aluminumPE / PVC
750 MCM380Cu / AlXLPE / EPRsteel / aluminumPE / PVC
800 MCM405Cu / AlXLPE / EPRsteel / aluminumPE / PVC
900 MCM456Cu / AlXLPE / EPRsteel / aluminumPE / PVC
1000 MCM507Cu / AlXLPE / EPRsteel / aluminumPE / PVC

Typical technical parameters table

And 33kV submarine cable manufacturer Provides detailed technical parameters for each cable.

Section mm²Conductor diameter (mm)Insulation thickness (mm)Armor thickness (mm)External diameter (mm)
357.08.04.065
709.58.04.572
12012.58.55.080
18515.08.55.588
24017.59.06.095
30019.59.06.5100
40022.59.57.0108
50025.010.07.5115
63028.010.08.0125
80031.510.58.5135
100035.511.09.0145

Applications of 33kV submarine cable

The submarine cables 33kV They are widely used in various marine energy applications.

Offshore wind farms

First of all, connect wind turbines with marine substations.

Oil platforms

Besides, supply power to offshore oil and gas facilities.

Interconnection between islands

In addition, allow electricity to be transported between islands and continents.

Coastal infrastructure

Finally, They connect industrial and energy facilities located in coastal areas.

Three-phase Submarine Cable

International standards

And 33kV submarine cable manufacturer must comply with international standards.

The most common include:

  • IEC 60502
  • IEC 60228
  • IEC 60840
  • IEC 62067
  • ICEA S-97-682

These standards guarantee safety, cable quality and reliability.

How to choose a 33kV submarine cable manufacturer

Choosing the right manufacturer is essential for the success of any project.

First, the manufacturer must have experience in offshore projects. Besides, must have international certifications and advanced production capabilities.

In addition, It is important to consider the manufacturing capacity of long cables without splices. Finally, technical support during design and installation is a key factor.

Submarine cable

33kV submarine cable manufacturer

He 33kV submarine cable manufacturer plays a crucial role in modern marine energy infrastructure. Thanks to its advanced design, These cables can operate safely in underwater environments for decades.

Besides, the combination of copper or aluminum conductors, isolation XLPE o EPR, Metal armor and protective covers ensure high performance and long life.

Therefore, Selecting a reliable manufacturer not only improves the efficiency of the electrical system, but also significantly reduces long-term operating costs.

For inquiries about submarine cables 20 kV, 22 kV y 24 kV, contact us.