extra high voltage cables
SMOOTH ALUMINIUM SHEATHED CABLES
A high-performance power cable with compacted circular or segmental copper/aluminium conductor, XLPE insulation, bonded semi-conductive screening, smooth aluminium sheath, and outer jacket ensuring durability, safety, and reliable power transmission across demanding applications.
1
Conductor
Compacted Circular Stranded/ Segmental Round Milliken Copper or Aluminium
2
separator tape
Semi-conducting Tape
3
Conductor Screen
Extruded Semi-conducting Compound
4
Insulation
Cross-Linked Polyethylene (XLPE)
5
Insulation Screen
Extruded Semi-conducting Compound
6
bedding tape
Semiconducting Foam Tape
7
metallic screen
Smooth Aluminium Sheath
8
Outer Sheath
Extruded High Density Poly-Ethylene (PE ST-7) Outer Jacket/ LSZH HFFR compound
Laying Conditions
Buried Direct in the Ground
Trefoil
flat spaced
In Air
trefoil
flat spaced
maximum conductor temperature
90⁰C
ambient air temperature (as per standard)
30⁰C
ground temperature (as per standard)
20⁰C
depth of laying (as per standard)
1.5m
Thermal Resistivity of Soil
1.5 K·m/W
Customization Requests
The following customizations can be provided to customers on request
Water Tight Construction
Customized specific fault current levels
Extruded Semi-conducting Polyethylene Jacket as conducting layer
FAQs
Got questions? We’ve got answers. Here’s everything you need to know about our products.
application
Where are Extra High Voltage (EHV) cables typically used?
When are EHV cables preferred over overhead transmission lines?
Are EHV cables suitable for underground and submarine applications?
Can EHV cables be used for renewable energy evacuation?
Are EHV cables used for interconnections between substations?
features and benefits
What are the key benefits of using EHV cables?
How do EHV cables improve grid reliability?
Do EHV cables reduce visual and environmental impact?
Are EHV cables suitable for long-term operation?
How do EHV cables support urban power demand growth?
technical specifications
What voltage levels are classified as EHV cables?
What insulation systems are used in EHV cables?
What conductor materials are used in EHV cables?
How is thermal performance managed in EHV cable systems?
What are typical installation configurations for EHV cables?
certification and standards
Which international standards apply to EHV cables?
What type tests are conducted on EHV cables?
Are EHV cable systems factory- and site-tested?
How is long-term reliability of EHV cables ensured?
Are accessories tested as part of the EHV cable system?
procurement and ordering
Can EHV cables be customized for specific project conditions?
What all is included in an EHV cable supply scope?
What information is required to request an EHV cable quotation?
What is the typical lead time for EHV cable projects?
Do suppliers provide installation and commissioning support?
