Which materials are required for a 66kV sub-transmission line project?
A typical 66kV project requires steel monopoles or lattice towers, ACSR/AAAC/ACAR conductors, earth wire or OPGW, 72.5kV insulator strings, suspension and dead-end fittings, joints and repair sleeves, vibration-control hardware, tower earthing, arresters or line interfaces, fiber accessories, inspection records and route-coded packing.
TYPICAL SYSTEM BASIS
66kV starting point.
The following values organize the first technical review. They do not replace the utility specification.
Nominal system
66kV
Equipment class
72.5kV
Structure family
Monopole or lattice tower
Phase system
Single conductor per phase unless specified
Communication
Earth wire / OPGW
Packing basis
Route or tower code
COORDINATED SUPPLY PACKAGE
Products matched as one line system.
Every group is checked against the same structures, conductors, insulation, equipment interfaces and approved project codes.
01
Structures & conductors
Route steelwork and current-carrying systems.
Lattice towers or steel monopoles
Tower attachment hardware and fasteners
ACSR, AAAC or ACAR phase conductors
Earth wire and OPGW systems
Foundation hardware where included by design
02
72.5kV insulation & fittings
Complete strings and conductor assemblies.
Composite, porcelain or glass insulator strings
Suspension and dead-end hardware sets
Compression joints and repair sleeves
Armour rods and vibration dampers
Jumper and terminal hardware
03
Interfaces, fiber & delivery
Grid interfaces and traceable project shipment.
72.5kV arresters and disconnectors where specified
Cable sealing ends and support hardware
Tower earthing materials
OPGW fittings, dampers and joint accessories
Technical submittals, inspection records and route-coded packing
TYPICAL APPLICATIONS
Where this package is used.
01Regional sub-transmission corridors
02Industrial plant and mine connections
03Substation interconnection
04Generation evacuation feeders
05Grid reinforcement and line replacement
TECHNICAL COORDINATION
Interfaces to close before final quotation.
01
Match tower attachment points to insulator-string and OPGW hardware drawings.
02
Confirm conductor stringing data, RTS, compression dies and required joints before final fittings selection.
03
Separate line hardware from substation equipment and define the terminal responsibility point.
04
Use route and tower codes consistently across drawings, BOQ, packing lists and package marks.
RFQ INPUTS
Information the buyer should provide.
Unknown fields may be marked “to be confirmed,” but they should remain visible in the clarification list.
Yes when the approved tower schedule and structure codes are available. Hardware, bolts and string assemblies can be grouped by tower or shipment section.
Can OPGW and its fittings be included?
Yes. Fiber count, cable construction, diameter, RTS, span data, tower attachments and joint-box locations are required.
Does KOVYEL provide line construction?
No. KOVYEL supplies equipment and materials and can coordinate documentation, packing and export shipment. Civil works, installation and commissioning are outside the supply boundary.
READY TO REVIEW THE 66kV PROJECT?
Send the BOQ, drawings and technical specification.
