Service connection & main feeder (LV)

Power supply that supports today’s load — and tomorrow’s growth.

We design and deliver LV service connections, main incoming feeders (HDV) and primary distribution so they’re never “on the edge”. Correct sizing, protection selectivity, clean routes and labeling — that’s the difference between a system that runs for years and one that stops you at the worst moment.

Sizing & headroom

for peaks and expansion

Protection & selectivity

logic, clarity, serviceability

Clean handover

labeling + documentation

LV service connection and main feeder – building power supply

Service connection & HDV

Main feeder of the building

Complete delivery

Civil works • Cabling • Handover

What we deliver for service connections & main feeders

We build it so the installation is safe, clear and “ready for operation”. The difference is in sizing, distribution logic, connection quality and a handover you can actually use.

Get a proposal

LV service connection

  • new connections and refurbishments
  • routes, penetrations, cable runs
  • clean interface to switchboards

Main feeder (HDV) & risers

  • primary feeder and riser routes
  • logical distribution through the building
  • headroom for expansion and changes

Power supply for operations & technology

  • prepared for real loads and peaks
  • sizing for start-up currents
  • reliability and serviceability in mind

Cable routes

  • trays, ladders, conduits, pipes
  • clean routes = faster interventions
  • separation: power / data where needed

Protection, selectivity & reliability

  • correct protective device selection
  • minimizing downtime during faults
  • revision-ready logic and documentation

Labeling & documentation

  • tags, identification of feeders and circuits
  • service-friendly handover
  • digital + printed (as agreed)

Why it pays to build beyond the minimum

The service connection and main feeder is the backbone of your building. If it’s undersized, poorly segmented or unclear, it will show exactly when it hurts most: expansion, new equipment, audits or a fault. We build it so you don’t have to redo “what could have been done right” in the first place.

Related services

It often makes sense to connect service connections and main feeders to the next steps — so the result is complete.

LV electrical service connection – cable routes and building power supply

Service connections & incoming feeders

New builds and refurbishments with clear scope, labeling and handover.

Main feeder and distribution – switchboard and circuit labeling

Main feeders & primary distribution

Main incoming feeder (HDV), risers, primary routes — serviceable, documented, with headroom.

Power supply for technology – cable routes and safe installation

Power for technology and equipment

Built for real operation: sizing, protection, surge, bonding and interfaces to technology.

How we work

Clear steps = faster delivery, fewer changes and a clean handover. For service connections and main feeders, this matters even more.

Step 1

Quick intake & on-site assessment

We confirm required capacity, usage profile, route assumptions and dependencies. For refurbishments, we assess the existing condition and risks.

Step 2

Design & sizing

We size the feeder, protection and distribution so it handles peaks, growth and future expansion — without improvisation later.

Step 3

Installation of routes & feeders

Cable routes, penetrations, labeling, switchboard tie-ins and power distribution — clean, service-friendly workmanship.

Step 4

Checks, measurements & handover

Verification steps, protocols (by scope), tags and documentation so operation is safe and the handover is audit-ready.

Step 5

Follow-up service & revisions

We can follow with initial/periodic revisions, fix findings and provide long-term service support.

Trusted by industry leaders.

Long-term partnerships with top companies in industry and the public sector.

ČEZ ESL
ČEZ ESCO
AISE, s.r.o.
AC Sparta Praha
Forum Nová Karolina
Marlenka

When service connections & main feeders matter most

The biggest ROI comes in projects where operation, future changes and accountability matter — not “just making it work”.

New builds & refurbishments

Homes, apartment buildings, commercial buildings — when you want correct sizing and clarity for the future.

Industry & technology

Halls, warehouses and technology — headroom, selectivity, serviceability and fast changes without chaos.

HOAs & facility management

HDV upgrades, distribution and switchboards — clear handover and easy follow-up revisions.

Municipalities & infrastructure

Reliable power supply for buildings and technology — documentation, operational certainty and accountability.

What we need for a fast quote

Better inputs = faster design and fewer changes during installation. If something is missing, we’ll fill it in together.

Basics

  • site location + building type
  • required capacity / loads / peaks
  • route assumptions (if known)

For refurbishments (extra)

  • photos of the current switchboard/incoming point
  • existing documentation (if available)
  • what doesn’t work today / what must change
Send inquiry

Note: we can follow with revisions and LV installations.

Accepting new projects

Have a project?
Let’s build it together.

  • Consultation & cost estimate
  • Delivered by our in-house teams
  • On-time delivery & long-term service
Global Elektronic – office
Headquarters
Ostrava
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Frequently asked questions

Do you deliver LV service connections and main feeders for companies, halls and industrial sites?

Yes. We deliver LV service connections, building power supply and main feeders for commercial and industrial sites. We handle sizing, capacity headroom, coordination with switchboards and a clean handover with documentation.

What is typically included in “service connection & main feeder” scope for a business building?

Feeder routing and installation, connection to metering, main feeder to switchboards, transitions between building sections, penetrations, labeling, and dependencies on protection and earthing/bonding. In operations, the interface to technology and sub-distribution boards is key.

Can you support capacity upgrades (higher demand), reserved capacity changes and modifications before the meter?

Yes. We assess the current condition, propose technical changes to service connection/main feeder/switchboards and prepare the installation to make sense for today’s operation and future expansion.

Do you coordinate with the distribution operator and connection timelines?

Yes. Coordination and timing is critical for businesses. We set technical interfaces and dependencies so the handover and potential connection steps happen without unnecessary downtime.

How do you size cables and protection (cross-sections, voltage drop, selectivity)?

We base it on required power, route length, installation method, environment and planned headroom. We design for correct voltage drop, selectivity and stable operation during peaks and motor starts.

Can you work while the site is operating and phase the work into stages?

Yes. For businesses, we plan stages, shutdown windows and changeovers to minimize operational impact. The key is a clear sequence, temporary supplies where needed, and single-point responsibility for changeovers.

Do you also handle power supply for technology and interfaces to sub-distribution boards?

Yes. Service connection and main feeders usually connect to sub-boards, production technology, HVAC, compressors or EV charging. We define the interface so it’s clear where the feeder ends and technology begins.

Do you provide civil works, penetrations and coordination with construction?

By agreement, yes. We can coordinate trenching, conduits, penetrations and interfaces to building works. With multiple suppliers, we define clear boundaries and handover points.

Can you include earthing and bonding as part of building power supply?

Yes. Earthing and bonding is essential for safety and reliability — we treat it as part of the whole and add measurements and recommendations based on the site condition.

Is documentation and initial revision readiness part of the delivery?

Yes. Standard is clear as-built documentation and handover-ready outputs. Depending on scope, we can follow with initial revision and protocols so nothing needs to be “fixed at the last minute”.

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