Intrinsic Safety

Tasks

In the field of electrical explosion protection devices and systems for measuring, control and automation, which need only small electrical values, can be protected by "Intrinsic Safety". This means that with sufficient safety a spark occurring in the normal operation or in the event of faults is limited in its energy in such a way that it cannot become an ignition source. For the experimental ignition testing of intrinsically safe electrical circuits as well as for basic research studies a spark test apparatus developed in Germany under co-operation of the PTB (see above) is used, which in 1964 found world-wide acknowledgement and was later adopteded in IEC and European standards.

Contact

Head of working group		Dir. u. Prof Dr.-Ing. Ulrich Johannsmeyer Tel.: +49(0)531-592-3600 Fax: +49(0)531-592-3605 E-Mail: Ulrich.Johannsmeyer@ptb.de
Office		Gerlinde Haas Tel.: +49(0)531-592-3630 E-Mail: Gerlinde.Haas@ptb.de
		Tanja Eckert Tel.: +49(0)531-592-3601 E-Mail: Tanja.Eckert@ptb.de
Adress		Physikalisch-Technische Bundesanstalt Working Group 3.61 Bundesallee 100 38116 Braunschweig, Germany