Indonesia – MV Control Cables for Hydropower Stations

Products Supplied:

• Medium Voltage (MV) Copper Control Cables

• Cable Lugs, Glands, and Terminations

• Metal Cable Trays and Support Systems

Product Overview

Cable Type: Cu/XLPE/PVC, Cu/XLPE/PVC/SWA/PVC
Voltage Class: 6/10kV, 8.7/15kV
Conductor: Plain annealed copper, Class 2 stranded
Insulation: Cross-linked polyethylene (XLPE)
Sheath: Flame retardant PVC (black)
Armoring: Optional galvanized steel wire armor (SWA) for mechanical protection
Core Configurations:

• 2C, 3C, 4C, 3.5C for various control and power distribution needs

• Sectional Area: 2.5mm² – 120mm²

• Operating Temp: -15°C to +90°C

• Flame Retardant: IEC 60332-1

Project Application & Scenario

This shipment supported the Phase 2 expansion of small- and medium-sized hydropower stations in East and Central Java, where rugged terrain and high ambient humidity demand durable, weather-resistant cable solutions.

Application Areas:

• Control and signal transmission between generators and switchgear

• Protection relays and motor control centers (MCCs)

• Outdoor/underground routing to turbine control huts

Client Requirements:

• High dielectric strength

• UV, flame, and moisture resistance

• Durable mechanical protection for underground routing

• Compliance with Indonesian SNI + international IEC standards

Solution & Customization

To meet these demands, Uni Cable customized a hybrid control cable solution:

• Integrated Cu/XLPE/PVC cables with galvanized SWA for zones prone to mechanical damage

• Delivered pre-labeled drum packaging with unique color-coded cores for easy installation

• All accessories (lugs, glands, cable ties) sourced to match exact core sizes and armor compatibility

Quality Assurance & Production Standards

• Type Tests:
  Conducted per IEC 60502-2 (MV cables) and IEC 60228 (conductor class compliance)

• Routine Tests:
  Voltage withstand, conductor resistance, insulation thickness, and elongation under tension

• Factory Acceptance Testing (FAT) witnessed by Indonesian third-party inspection agent

• SNI and PLN-Approved Vendor Certification presented pre-shipment

Shipment & Export Details

• Total Supplied Length: 42,000 meters of MV control cable + 7,000 units of matching accessories

• Shipping Port: Qingdao Port, China

• Incoterm: CIF Surabaya Port

• Packaging: Anti-UV wooden drums, wrapped with moisture-proof film

• Shipping Time: 24 days (sea freight)

• Customs Documentation: Form E (FTA), Certificate of Origin, Test Reports, Cable Datasheets, Packing List, Commercial Invoice

Uni Cable Value

• Long-term strategic supplier of PLN contractors
• Consistent product quality, traceability via drum serial numbers
• Strong local coordination with agents for inspection & after-sales support
• Integrated supply of cables + accessories = reduced sourcing time for the customer