The paper begins by discussing those aspects of maintenance of low-power electrical equipment in hazardous atmospheres that are common to both intrinsically safe and type ‘N’ equipment. The salient points particular to each of the techniques are then discussed separately, the points made on intrinsically safe equipment being in line with current accepted practice and those on type ‘N’ equipment being slightly more controversial.
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References
1.
BS 5345: Part 1: 1976. Code of Practice for the selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres. Part 1: Basic requirements for all Parts of the Code.
2.
ReddingR. J.Intrinsic Safety. The safe use of electronics in hazardous locations. McGraw — Hill.
3.
MagisonE. C.Electrical Instruments in Hazardous Locations. Plenum Press.
4.
AN 9003. A User's Guide to Intrinsic Safety. Measurement Technology Ltd.
5.
AN 9004. A User's Guide to Zone 2 Instrumentation. Measurement Technology Ltd.
6.
GauntD. R.Standards for Hazardous Areas. July/August 1976.
7.
TowleL. C.‘Selecting Electrical Equipment for use in Explosive Atmospheres, Electrotechnology, July 1974.
