Ports and shipyards are facilities with high and variable power demands — from quay cranes to slipway supplies, from cold stores to wide-area lighting. What is more, the salty, humid marine environment rapidly wears out ordinary electrical equipment. Electrical infrastructure at these facilities must be built with both capacity and durability in mind.
Miratek takes on the entire electrical infrastructure of port and shipyard sites turnkey — from the MV distribution network to crane supplies, from transformer substations to area lighting. Equipment selection is based on protection ratings suited to corrosive environments, and cable routes are planned so as not to disrupt port operations.
The work can proceed in stages while the facility remains in operation. After commissioning, a periodic maintenance program preserves the long-term performance of the infrastructure in the marine environment.
Technical Scope Summary
| Voltage levels | MV distribution (1-35 kV) and LV installations |
| Systems supplied | Quay and yard cranes (STS, RTG), slipway and dock supplies, workshops |
| Environmental conditions | High-IP-rated equipment suited to the salty, corrosive marine environment |
| Distribution infrastructure | Transformer substations, MV cubicles, cable ducts and galleries |
| Lighting | High-mast area lighting and quay lighting systems |
| Delivery model | Turnkey: design, procurement, installation, testing, and commissioning |
How We Work
Site survey and load analysis
Crane, workshop, and yard loads plus future capacity needs are mapped out to define the distribution architecture.
Design
The MV distribution scheme, transformer substation locations, and cable routes are designed around the port operations plan.
Equipment procurement
Panels, cubicles, and lighting equipment with protection ratings suited to the marine environment are procured.
Site installation
Transformer substations, cable galleries, crane supply lines, and lighting masts are installed in stages without disrupting operations.
Testing and commissioning
Protection coordination, grounding measurements, and load tests are completed and the system is put into operation.
Periodic maintenance
Corrosion checks, thermal scans, and protection relay tests keep the health of the infrastructure under regular surveillance.
Scope of Work
- Construction of the MV distribution network and transformer substations
- Supply lines for quay cranes and heavy equipment
- Cable ducts, galleries, and on-site power distribution
- High-mast area and quay lighting systems
- Electrical installations for workshops, slipways, and docks
- Grounding, lightning protection, and protection coordination
- Testing, commissioning, and periodic maintenance services
Frequently Asked Questions
Can the electrical infrastructure be renewed while port operations continue?
Yes — such projects are run with a staged migration plan prepared together with the port operator. Power outages are confined to planned windows, temporary solutions are deployed for critical supplies, and crane downtime is kept to a minimum.
How does the marine environment affect equipment selection?
Salty, humid air causes rapid corrosion and insulation problems in standard equipment. Panels and lighting equipment are therefore specified with high IP protection ratings, corrosion-resistant enclosure materials, and suitable cable types. Equipment selection is finalized at the survey stage based on the ambient conditions.
Do crane supplies require special infrastructure?
Quay cranes draw high and variable power; supply lines, protection settings, and — where needed — power quality measures are therefore sized to the crane characteristics. Along-the-rail power feeding and cable management are also covered within the design scope.
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