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Why Anechoic Testing Matters for Industrial Charging Systems

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At Enatel, we continue to invest in advanced in-house testing capabilities to ensure every product is validated for safety, compliance, and performance. A key part of this investment is our anechoic chamber, located within our Christchurch, New Zealand facility.

The Enatel anechoic chamber allows our engineering and design teams to test products against the emission and immunity limits defined in electromagnetic compatibility (EMC) standards.

It is one of a limited number of facilities in New Zealand capable of supporting this specialized testing.

 

View the time lapse of the Anechoic EMC Chamber installation.

 

What is an anechoic chamber used for in industrial charging?

An anechoic chamber provides external isolation preventing outside signals (like cell towers, Wi-Fi, or radio broadcasts) from reaching the equipment under test. It also provides internal absorption through walls lined with specialized carbon-loaded foam and ferrite tiles that absorb electromagnetic waves rather than letting them bounce. Finally, it creates a quiet zone establishing a uniform, distortion-free region of space where only the direct signals between a transmitter and receiver are measured.

For industrial fleet charging, this level of isolation is critical. In material handling and ground support environments, charging infrastructure operates alongside vehicles, telematics, and wider site systems. Even minor interference can impact performance. Anechoic testing removes that uncertainty and provides a clear view of how systems behave under controlled conditions.

 

Why does EMC matter for industrial charging systems?

Electromagnetic compatibility (EMC) ensures equipment performs as intended without interfering with other systems or being affected by them. For Enatel customers, this directly impacts uptime. As charging infrastructure becomes more powerful and operations rely on increasing numbers of connected systems, EMC performance becomes increasingly important. Chargers must operate reliably alongside vehicles, telematics, and wider site systems without introducing interference.

This matters most in environments where charging systems support critical operations:
  • Warehouses and distribution centers rely on consistent charging during high demand operations
  • Airport environments require reliable performance alongside critical ground systems

If EMC is not properly managed, equipment can behave unpredictably. Systems can interfere with each other. Operational reliability decreases.

 

How does Enatel test industrial charging systems for EMC?

The Enatel anechoic chamber is central to how we design and validate our charging solutions. We test our Indoor and Outdoor Chargers against strict emission and immunity requirements defined in international EMC standards. By isolating each charger within the chamber, we can accurately measure and validate its performance.

Through this testing, we measure:
  • What the charger emits
  • How it responds to interference
  • How it performs under representative operating conditions

Having this capability in house allows us to test early, test often, and refine continuously. Issues are identified and resolved before products reach site.

 

What does EMC testing mean for charging system performance on site?

In material handling and ground support environments, charging systems must perform consistently alongside tightly integrated site operations.

Customers need assurance that every charger will perform as intended before it reaches site. To support this, Enatel tests and validates each unit in isolation inhouse prior to being validate by independent laboratories as part of a global compliance program. The result is infrastructure customers can deploy with confidence, backed by rigorous testing.