PFLITSCH is an established pioneer in EMC cable glands

 PFLITSCH invited member of staff and EMC specialist Günther Quednau to take part in an interview and talk about today's hot topic "electromagnetic compatibility (EMC)":

 

PFLITSCH: Why is the issue of electromagnetic compatibility becoming more and more important?

Günther Quednau: The increasing use of electronic devices (PC, media centres, microwave ovens) and the proliferation of wireless equipment (mobile phones, WLAN) have real significance for those wishing to achieve interference-free communication.

 

PFLITSCH: What is the status quo with EMC, where are the problems and what is the current trend?

Günther Quednau: The problem is the increasing need for simpler and more consistent formulation of official standards for measuring procedures and conversion factors. I see a requirement for optimisation here. On the other hand, more practical solutions in various branches of industry are increasingly brought on to the market. PFLITSCH has been involved with EMC in tests and variants since 1985. Recently we have produced hygiene cable glands, such as blueglobe CLEAN^®, as EMC variants. This product solution is primarily used in the food production and chemical industries. Another trend is the increasing use of EMC cable glands in the field of maritime transport.

 

PFLITSCH: What approaches to solutions has PFLITSCH to offer on the problem of EMC?

Günther Quednau: Firstly, PFLITSCH has been active on EMC standards committees for several years in the search for valid measuring procedures. Secondly, we have been able to offer our customers EMC solutions tailored to meet their individual requirements.

 

PFLITSCH: What can these EMC products from PFLITSCH, such as blueglobe TRI^®, offer in comparison with other products?

Günther Quednau: PFLITSCH is the leading supplier of cable glands for EMC products and worthy of special mention here is the blueglobe TRI^®. In this product solution, the seal and the EMC screening are separated from one another. This achieves the highest damping values: Generally around 80 dB to 100 MHz, while even in a frequency range of up to 2.5 GHz the typical values are at least 50 dB. A triangular spring fits around the cable's braided shielding. The design of the spring precludes its getting caught in the braiding if the assembly is dismantled. Furthermore, PFLITSCH is the only manufacturer so far to test its EMC cable glands in accordance with IEC 62153-4-10. By playing its part in the development of the KoKeT^® procedure among other things, the company has shown itself to be well ahead of other players in the industry.

 

 

PFLITSCH: As touched on above, PFLITSCH has been instrumental in developing the KoKeT^® procedure for testing EMC cable glands: What is special about it?

Günther Quednau: KoKeT is a Anglo-German acronym for Koaxial (coaxial measuring device), Kelvin (four-terminal sensing) and Tube (tubular construction). The KoKeT procedure codeveloped by PFLITSCH is optimised for the testing of cable glands and allows the use of older and simpler high-frequency measuring devices, often already in a company's instrument cabinet. The procedure can also be used to test products in interference-compromised environments (non-screened rooms). What's more, we can use it to check cable glands, cables and plug-in connectors individually. We can perform these measurements and tests in our laboratory on behalf of customers.

 

PFLITSCH: Has the KoKeT^® procedure been incorporated into the IEC standard yet?

Günther Quednau: Yes, the procedure has been incorporated into IEC 62153-4-10 and has been officially proved to be fully compatible with the standard.

 

Further information on the subject of EMC can be found here:

Günther Quednau:

PFLITSCH GmbH & Co. KG

e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it  

< Prev		Next >