Guide · Lightning

Lightning risk assessment: do you need protection?

Malaysia has high lightning activity, but not every building needs the same level of protection — or any external system at all. A lightning risk assessment replaces guesswork with a structured calculation. This guide explains what it covers and how it fits with installation work.

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The assessment

What a risk assessment looks at

The structure and its setting

Struktur & lokasi

Size, height and shape of the building and its roof.
Local lightning flash density and surrounding terrain, trees and neighbouring structures.
Construction materials and whether the building has metal frames or reinforcement.
Whether the site is isolated, on high ground or among taller structures.

What is inside and who is exposed

Kandungan & penghuni

Occupancy: homes, schools, factories, hospitals and public buildings carry different risk levels.
Value and sensitivity of equipment, data systems and processes.
Incoming power, telecom and data lines that can carry surges.
Hazards such as fuel, chemicals or crowds, which raise the consequences of a strike.

The outcome

Keputusan

A conclusion on whether an external lightning protection system is needed.
A protection level, which sets the design of air terminals, conductors and earthing.
Recommendations for surge protection at power and signal entry points.
A design basis that installers, owners and insurers can all rely on.

Who it’s for

Where this work fits

Factory and warehouse owners

Large roofs and valuable equipment make a documented assessment worthwhile.

Schools, mosques and community buildings

Buildings where many people gather deserve a structured decision.

Owners of solar, EV and telecoms sites

Exposed sites where equipment damage is the main loss.

Homeowners on exposed sites

Hilltop and open-area houses that have had strike or surge damage.

How we work

From survey to handover

STEP 1

Site information

We collect plans, dimensions, occupancy details, services and any history of strike or surge damage.

STEP 2

Assessment by specialist partner

Our specialist partner carries out the formal risk calculation and issues the assessment.

STEP 3

Design and quotation

Based on the result, we design the installation, surge protection and testing scope, and quote it.

STEP 4

Installation and testing

Elektrika installs the system and tests earthing and continuity, with documents for your records.

Partner delivery

The assessment is carried out by a specialist partner

Elektrika does not perform the formal lightning risk calculation itself. This is done by a specialist partner experienced in the process. Elektrika coordinates the information, then carries out the electrical and installation works that follow: conductors, bonding, earthing, SPD and testing. Our lightning protection service page lists what we install.

FAQ

Frequently asked questions

Is a lightning risk assessment compulsory in Malaysia?

Requirements depend on the building type, authority and insurer. Even where not mandatory, an assessment is the best way to justify the level of protection and avoid under or over-spending.

Who performs the risk assessment?

A specialist partner performs the formal assessment. We handle the information gathering and the installation that follows.

How long does the assessment take?

It depends on the complexity of the site and how quickly plans and details are provided. Straightforward sites are quicker than large industrial complexes.

What if the assessment says I do not need a lightning protection system?

You may still need surge protection for sensitive equipment and good earthing. We can advise and install those separately.

Does a lightning protection system make a building immune to lightning?

No system guarantees zero damage, but a properly designed one greatly reduces the risk of fire, structural damage and equipment loss.

Lightning protection

Air terminals, down conductors, earthing and SPD.

Earthing testing

Earth resistance, loop impedance and RCD testing.

Electrical guides

Plain-language guides on phase, tripping, solar, lightning and EECA.

Get a quote

Ask us about lightning risk assessment

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Start with a lightning risk review. Free site visit & quote.

Free site visit & quote · registered contractor · tested & documented.