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Full Scope
WHAT'S INCLUDED IN OUR Cable design SCOPE
Cable Sizing & Selection
Current rating calculations to IEC 60287, cable type selection, thermal analysis and derating for installation conditions.
Cable System Design
Trefoil and flat formation layouts, joint bay and sealing end design, cable screen bonding and sheath voltage limiters.
Sheath Bonding & Earthing
Single-point, mid-point and cross-bonding design, SVL specification, link box schedules and earthing connection drawings.
Route Survey & Planning
Desktop and walkover survey, utility clash identification, route optimisation and crossing agreement documentation.
Civil & Duct Design
Duct bank layout, cable trench design, directional drilling schematics, joint bay excavation and thrust bore packages.
Thermal & Rating Analysis
IEC 60853 cyclic rating, soil thermal resistivity testing, group rating derating and hot-spot temperature assessment.
Our Process
FROM ROUTE SURVEY TO Energisation
01
ROUTE SURVEY & CONSTRAINTS
Desktop utility search, walkover route survey, landowner access agreements and constraint identification. Cable route feasibility confirmed within 3 weeks of award.
02
CABLE SIZING & SPECIFICATION
Current rating analysis, cable type selection and specification preparation. Long-lead cable and joint items identified and procurement schedule agreed with client.
03
DETAILED DESIGN
Produce cable route drawings, joint bay designs, civil duct bank layouts, bonding schematics and installation instruction drawings to IFC standard.
04
INSTALLATION SUPPORT
Review contractor installation method statements, witness joint assembly, carry out drum schedule checks and attend sheath pressure tests and HV acceptance tests.
05
COMMISSIONING & AS-BUILT
Witness cable HV commissioning tests, review test data and compile final as-built cable schedules, route drawings and cable system documentation for handover.
Capabilities
Technical Specifications
Voltage Range | 11kV, 33kV, 66kV, 110kV, 132kV, 220kV, 400kV |
Cable Types | XLPE, EPR, PILC; copper and aluminium conductor options |
Installation Methods | Direct buried, duct bank, tunnel, tray, J-tube, HDD |
Bonding Arrangements | Single-point, mid-point and cross-bonding to IEC 60840 |
Standards Followed | IEC 60287, IEC 60840, IEC 62067, BS 7671, IS 1554 |
Software Used | CYMCAP, ETAP Cable, AutoCAD, Civil 3D |
Deliverables | Route drawings, cable schedules, bonding diagrams, test records |
Proof of Work
HV & MV Cable Projects We've Delivered
Electrical Engineering Consultant in UK