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EMC TESTING FOR THE IoT ❱❱ TÜV SÜD Product Service test


chambers probe the limits of product EMC emissions and susceptibility


Avoiding compliance anxiety


Jonathan Newell talks to Andy Lawson at TÜV SÜD Product Service about preparing for increasingly complex standards compliance.


F


or all its promise of convenience, efficiency, fun and even future necessity, the Internet of Things (IoT) brings with it the potential for device manufacturers’


compliance anxiety as the race to get connected is held back by the anchors of an increasingly complex regulatory compliance environment. Recognising this changing


environment, the standards bodies are striving for a simpler set of regulations to make it clearer to manufacturers and ease the process of gaining compliance but the standards which need to be met still depend on the technology within the product and the environment in which it will be used.


CE MARKING


Gaining the CE mark is a requirement in the EU for electrical apparatus, which is any finished appliance or combination. It isn’t required for fixed installations such as electrical equipment that forms part


2 /// EMC Testing 2017


of a factory production line, for example. The CE Marking directive has three components which are applicable in the EU, including: • 2014/30/EU – Electromagnetic Compatibility (EMC)


• 2014/35/EU – Low Voltage Directive (LVD)


• 2014/53/EU – Radio Equipment directive (RED) These replace the previously most recent 2004 directive. EMC doesn’t cover safety, which is now catered for in the LVD.


Additionally, the Radio Equipment


Directive is an important addition which covers connected devices. This is the key element in gaining compliance for IoT devices and applies even to equipment that wouldn’t have been associated with the transmission or receiving of signals in the past, such as smart, connected watches, other wearables and even home appliances that are connected into the internet of things.


❱❱ Modern technology from autonomous cars to wearables need to conform to a catalogue of EMC and other standards


According to TÜV SÜD Product


Service’s EMC Supervisor and Lab Manager, Andy Lawson, this is a new element of legislation to many who are not accustomed to dealing with RF equipment and can easily be overlooked. “The Internet of Things is seeing all kinds of equipment that would previously not have been considered a communications device requiring compliance to RED,” he told me. He went on to explain that anything


electrical needs to be tested for EMC compliance and safety against the Low Voltage Directive for voltages up to 240v. RED is for anything with RF capabilities.


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