# Modelling of sparking contacts for hazardous area applications

Shekhar, Rajiv and Uber, Carsten (2015). Modelling of sparking contacts for hazardous area applications. In: Proceedings of the 2015 Sixty-First Ieee Holm Conference On Electrical Contacts (Holm). 61st IEEE Holm Conference on Electrical Contacts (Holm), San Diego CA, United States, (347-352). 11-14 October 2015. doi:10.1109/HOLM.2015.7355119

Author Shekhar, RajivUber, Carsten Modelling of sparking contacts for hazardous area applications 61st IEEE Holm Conference on Electrical Contacts (Holm) San Diego CA, United States 11-14 October 2015 Chen, Zhuanke Proceedings of the 2015 Sixty-First Ieee Holm Conference On Electrical Contacts (Holm) Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts Piscataway, NJ United States Institute of Electrical and Electronics Engineers 2015 Fully published paper 10.1109/HOLM.2015.7355119 Not Open Access 9781467393416 1062-6808 2015-December 347 352 6 50 62 2016 eng An understanding of transient contact sparks and how they interact with electrical systems is of critical importance to hazardous area applications, where such sparks are at risk of igniting flammable atmospheres. Hazardous area electrical systems are distinguished from more typical applications of spark modelling by their low voltages and currents. This paper applies an empirical, quasi-static modelling approach to such spark discharges. The use of a classical parametrised empirical model is proposed, and justified with a qualitative treatment of the underlying physics. Parameter values for the model are calculated by studying sparks with constant length and constant current respectively, and then combining the observed trends into the proposed model. The model, is then validated against experimental data obtained from sparks with time varying current and length. The relevance of dynamics arising from energy storage in the arc column is also considered, identifying the situations where a quasi-static approach is sufficient. Finally, methods for determining the thermal output of the spark, the ultimate goal of spark modelling in hazardous area applications, are discussed. E1 Provisional Code UQ

 Document type: Conference Paper Official 2016 Collection School of Information Technology and Electrical Engineering Publications

 Versions Version Filter Type Sun, 13 Mar 2016, 00:20:12 EST Sun, 13 Mar 2016, 06:32:23 EST Sun, 20 Mar 2016, 00:21:28 EST Tue, 22 Mar 2016, 01:41:24 EST Fri, 15 Apr 2016, 10:53:18 EST Tue, 19 Apr 2016, 02:25:35 EST Tue, 03 May 2016, 11:36:32 EST Wed, 04 May 2016, 06:30:16 EST Mon, 30 May 2016, 14:51:26 EST Filtered Full
Citation counts: Cited 0 times in Thomson Reuters Web of Science Article Cited 0 times in Scopus Article Search Google Scholar Sun, 13 Mar 2016, 00:20:09 EST by System User on behalf of School of Information Technol and Elec Engineering