NDLI: Modelling of sparking contacts for hazardous area applications

Content Provider	IEEE Xplore Digital Library
Author	Shekhar, R. Uber, C.
Copyright Year	2015
Description	Author affiliation: Phys.-Tech. Bundesanstalt, Braunschweig, Germany (Shekhar, R.; Uber, C.)
Abstract	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.
Starting Page	347
Ending Page	352
File Size	2525807
Page Count	6
File Format	PDF
e-ISBN	9781467393416
DOI	10.1109/HOLM.2015.7355119
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hazardous areas
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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