An End-to-End Service For Surge Protection

SPDs are coordinated from the main incomer to local distribution and final circuits using the lightning protection zone (LPZ) concept, in line with EN 62305-4, IEC 60364-5-53, and EN 61643.

• Type 1 SPDs (lightning current arresters) handle high-energy 10/350 μs lightning currents at the origin of the installation.

• Type 2 and Type 3 SPDs provide staged protection downstream, forming a robust barrier against switching and lightning-induced surges.

Surge Protection Devices

Designing the right surge protection means:

• SPDs coordinated from the main incomer to local distribution and final circuits

• Lightning protection zone (LPZ) strategy applied across the full installation

• Devices selected and located to suit expected energy discharge and equipment immunity

• Full compliance with national and international standards from day one

• Early certainty on scope and cost before installation begins

SPDs For Power Systems

With over 170 projects delivered across nine countries since 2011, you can be assured of our expertise and experience in this specialist discipline. From risk assessment and design through to supply, installation, testing, commissioning, and ongoing maintenance, you can rely on our ATLAS-accredited specialists at every stage of your project.

Direct Strike designs, supplies, installs, and commissions Surge Protection Devices (SPDs) that keep your site running when lightning or switching surges hit, protecting the power and data systems your business relies on and cutting the risk of damaged equipment, emergency call-outs, and unexpected downtime. We are specialists providing surge protection design and installation services for architects, engineers, and main contractors on large-scale construction projects.

With particular expertise in coordinated SPD strategy across power and IT/data systems, we design protection that integrates with your overall lightning protection and earthing design, in line with EN 62305-4, IEC 60364-5-53, and EN 61643. Every system is specified, installed, and commissioned by a single accountable team.

Why Direct Strike?

SPDs For IT and Data Systems

Our designers are ATLAS-accredited and our installation teams work to ISO 45001. We back every project with annual maintenance and compliance-led inspection, so your surge protection continues to perform exactly as designed, year after year.

What We Do For Surge Protection

IT, telecom, and data systems need a different SPD strategy that accounts for voltage, current, signal transmission type, frequency, and signal type, so protection doesn't compromise signal quality.

• Lightning protection zones, expected energy discharge, device arrangement, and terminal equipment immunity are all considered when selecting and locating SPDs.

• This ensures critical communication and control signals remain stable even during severe surge events.

Accredited Quality

Direct Strike provides a full surge protection service, from initial design through installation to ongoing testing and maintenance.

• Design and consultancy — Assessing your site and drawings, coordinating SPDs with lightning and earthing systems, and selecting devices to EN 62305-4, IEC 60364-5-53, and EN 61643.

• Supply and installation — Supplying high-grade Surge Protection Devices and installing them at main incomers, distribution boards, and sensitive equipment, with testing and commissioning on completion.

• Inspection and maintenance — Carrying out regular testing, inspection, and replacement of SPDs so your protection remains compliant and effective over the life of the system.