Magnetic Field Shielding

Transformer and Switchgear Shielding

REDUCE OCCUPANT EXPOSURE

Attenuating low-frequency magnetic fields so people nearby stay within exposure guidelines.

PROTECT SENSITIVE EQUIPMENT

Preventing 50 Hz fields from disrupting electronics, imaging and lab instruments.

ENABLE USABLE DEVELOPMENT SPACE

Freeing up floor area above or beside a substation for safe occupation.

MEET REGULATORY AND PLANNING REQUIREMENTS

Satisfying planning conditions and electromagnetic field (EMF) limits for building near electrical infrastructure.

Shielding for Safety

As the demand for electricity continues to rise, the installation of larger and more powerful transformers, along with their associated cabling, has become more prevalent. As a result of this, there has been an increase in the levels of power-frequency electromagnetic interference (EMI) emitted from these equipment rooms and devices.

All high-current sources in a building, such as transformers, bus-bars, switchgear and power distribution cables, produce magnetic fields. These fields can pass through standard building construction materials and induce currents in the human body or electronic devices.

If intense enough, the radiated magnetic field can affect electronic equipment and the health and wellbeing of the building’s occupants. The guideline reference limits applicable in the UK are those published by the International Commission on Non-Ionising Radiation Protection (ICNIRP).

KEY FEATURES

Magnetic field shielding

High-permeability alloy that redirects low-frequency magnetic fields away from occupied areas.

Site field survey

Detailed measurement of existing field levels to map the problem and design shielding to the required attenuation.

Targeted shielding design

A bespoke layout that shields walls, floors or ceilings precisely where fields are strongest, rather than over-engineering the whole space.

Layered construction

Combining materials and thicknesses to achieve the necessary attenuation, sometimes using multiple shielding layers for high field strengths.

Verification testing

Post-installation measurement to confirm field levels meet the target guidelines (such as ICNIRP) and planning conditions.

Integration with building structure

Shielding that fits within walls, floors and ceilings as part of the construction, maintaining usable space and finish.

CHOOSE THIS SOLUTION FOR

50 Hz

Shielding of high-current cables, typically LV and HV mains feeder cables that are emitting high levels of EMF.

Magnetic Field

Optimised shielding for power frequencies (50/60 Hz) to prevent human exposure to potentially harmful levels of magnetic fields.

Building Shielding

Suitable for industrial, commercial and large residential installations. Provides conformity with long-term public exposure limits of EMF.

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The best place to start is with a conversation

We know that no two projects are the same, which is why we offer a fully bespoke service built around your exact needs. From the dimensions of your installation to the standards you need to meet, we design and manufacture a solution that fits your space and your goals.

Please fill in the ‘Contact Us’ form below and one of our experts will get in touch. We’ll discuss what you’re working on and help you find the right solution, with no obligation.

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