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Electrical Infrastructure

The part of the installation
that leaves no margin for error

Networks, transformer substations and grid connection. This is the highest-risk part of our work, and therefore the one with the strictest rules on training, equipment and signage.

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Specific training
Medium-voltage work carried out by personnel with appropriate, documented training
Certified workwear
Arc flash protection to EN IEC 61482-2 and EN ISO 11612
25 years
Warranty on panels
10 years
Warranty on inverters
22%
Minimum efficiency
60%
Max. climate control saving
The risk

The discipline where a mistake
allows no second attempt

Medium voltage has its own rules, distinct from those of low voltage: a different training regime, different protective equipment and different signage, all set out in law.

The team entering a transformer substation has specific training and wears certified arc-flash workwear, category III PPE.

Medium voltage with our own team
This part is not subcontracted. The people who build the transformer substation and run the tests are ours, and they are the ones who answer if something fails at commissioning.
What goes underground stops being visible
Cable, cable route and depth are photographed with a positional reference before the trench closes. After that, checking means digging.
The connection depends on third parties
This is the phase where schedules slip, because it does not depend on us alone. We report dates once confirmed, and name what is at risk while there is still time to react.
III PPE category
Electrical Infrastructure

What is guaranteed
in writing

Specific training

Medium-voltage work carried out by personnel with appropriate, documented training.

Certified workwear

Arc flash protection to EN IEC 61482-2 and EN ISO 11612.

25 years
warranty

Standardised signage

Danger-of-death warning and restricted access, in accordance with the regulation in force.

22%
minimum efficiency

Documented testing

Measurements and tests delivered as a report before commissioning.

Solutions

Works at every
point of the network

Solution 01

Transformer substation

Installation, standard signage and testing before commissioning.

See detail →
Solution 02

Buried network

Trenching, cabling and cable routes, photographed before backfilling.

See detail →
Solution 03

Grid connection

Coordination with the network operator until the connection is live.

See detail →
In detail

What sits
behind each one

01

Transformer substation

We work in medium voltage with our own team, without subcontracting. Installation, standard signage and testing are completed before commissioning, because afterwards there is no margin left to discover what was missed.

  • Our own team qualified for medium-voltage work
  • Standardised signage and lock-out procedures documented
  • Testing completed before commissioning, not after
02

Buried network

What goes underground can no longer be inspected. Cabling, cable routes and depths are therefore photographed before the trench is closed, and the layout is handed over as a drawing to whoever has to intervene later.

  • Photographic record with positional reference before backfilling
  • Depths and separations in accordance with the applicable standard to the network type
  • Layout handed over as a drawing, still usable years later
03

Grid connection

The connection depends on third parties, and it is where schedules usually slip. We handle the process with the network operator and report dates as they are confirmed, not as they are hoped for.

  • Process handled with the network operator through to live connection
  • Test documentation prepared for inspection
  • Dates reported once confirmed, with anything at risk named

From first contact
to documented handover

01
Electrical design
Load, protection and routing calculations, with drawings and specifications.
02
Approval
Coordination with the network operator and with the energy authority where applicable.
03
Delivery
Trenching, cabling, switchboards and transformer substation, recorded by phase.
04
Testing
Earthing, insulation and continuity measurement, with signed report.
05
Commissioning
Connection, safety signage on doors and handover of documentation.
The calculation is written down before the first team reaches the site
Delivered works

Installations that
demonstrate our capability

Transformer substation: switchgear, busbars and cable trays
Cable trenches open to the connection point
Cables laid with spacing and a sand bed
Ground prepared ahead of the electrical installation

Questions that deserve
a direct answer

Do you work on medium voltage?

Yes, with specifically trained personnel and certified arc-flash protective workwear to EN IEC 61482-2.

Who is the operator of record?

Not always WChampion. On a turnkey project the owner of the installation becomes the operator, and the door sign says so.

What signage is mandatory on a transformer substation?

A danger-of-death warning on the door, the door locked, and access restricted to suitably trained personnel.

Do you handle grid connection?

Yes, in coordination with the network operator. The timescale for that connection depends on the operator, not on the works, and is indicated in the proposal.

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For projects that demand
a proper standard.

Tell us what you need. We reply with a written technical proposal.

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