Data centres and critical mission facilities don’t forgive vague specifications. A poorly scoped earthing or lightning protection strategy rarely reveals itself during the design phase it shows up during commissioning, or during a fault, when the cost of getting it wrong is far higher than the cost of getting it right from the start. TERRATECH brings together engineering depth and direct field experience to give project teams a clear, accurate picture of what a site needs and why.

Getting the foundations right before a single cable is pulled.

ur consultation practice covers the full scope of earthing systems, cross bonding, and lightning protection from initial site appraisal and risk assessment through to technical review of contractor documentation and standards compliance advisory.

We work with developers, data centre operators, M&E consultants, and main contractors across EU especially Germany, Belgium, the Netherlands, and Luxembourg. The facilities we advise on are ones where availability is critical: new-build data halls, live operational facilities undergoing expansion, carrier-neutral exchanges, and high-availability infrastructure where downtime is measured in financial and reputational terms, not inconvenience.

Our approach is direct. We communicate clearly with your engineering and project teams, we give honest assessments of risk and compliance gaps, and we produce recommendations that are specific enough to act on. The standards we work to IEC 62305, DIN EN 62305, and applicable national regulations across the Benelux are not treated as boxes to tick. They’re the framework within which sound engineering decisions are made.

One measure of how our consultation work holds up in practice: the project packages that follow our inputs tend to require significantly fewer post-tender variations than those where specialist input came later in the process. That’s not an accident. It’s the direct result of investing time and rigour at the front end.

Key Capabilities

Lightning Risk Assessment
Structured assessment in accordance with IEC 62305-2, covering classification of structures, calculation of tolerable annual frequencies of dangerous events, and determination of the appropriate level of protection required.

Earthing System Studies
Site-specific analysis of soil resistivity conditions, earth electrode design strategy, and earthing network configuration for new-build and retrofit data centre environments including substation interfaces, generator neutrals, and raised-floor hall layouts.

Cross Bonding & Equipotential Bonding Review
Technical assessment of bonding requirements across electrical, mechanical, and structural interfaces, with particular attention to the complexity of bonding networks within active server hall environments.

Surge Protection Coordination
Advisory input on the selection, location, and coordination of surge protective devices across LV distribution infrastructure, particularly where sensitive IT loads are involved.

Design & Documentation Review
Independent review and comment on existing earthing and LPS designs, contractor drawings, tender specifications, and as-built documentation including verification against DIN VDE, NEN, AREI/RGIE, and client-specific technical requirements.

Onsite Surveys
Physical inspection of existing earthing and lightning protection infrastructure to identify non-conformities with current standards, deterioration, or changes to the facility that affect system performance.

Interference & EMC Studies
Assessment of earthing system interactions with adjacent telecommunications, power, and transport infrastructure, including electromagnetic compatibility considerations relevant to data centre environments.

Why Clients Choose Terratech

We are frequently brought in because an earlier specification raised more questions than it answered. A well-written earthing or LPS consultancy report should make the contractor’s job clearer, not harder and it should produce a tender document that doesn’t generate a stream of clarification requests once works begin.

That level of precision is what clients consistently find when they work with us. It’s also why most of our clients come back. We don’t rely on volume we rely on the quality of what we produce and the relationships that follow from it.

Terratech Blitzschutz is among the most sought-after specialists in earthing and lightning protection across the DACH and Benelux markets. That reputation was built project by project, not through marketing.