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J P Polymer Sheetings Limited

Contact Details


Unit 26 Coneygre Industrial Estate,

Birmingham New Road,


West Midlands.



Tel:  +44 (0) 1215205020

Fax: +44 (0) 1215224610



IEC 61111 Explained

Table 1

The IEC standard offers a class selection system from 1000V to 36,000V for end users to select the correct product to protect them against the possible working voltages they may be exposed to.


The table below explains the IEC classification system against maximum working voltages.

For example, previous users of BS 921 650 volt working, 15kV tested, would choose IEC 61111 Class 0 in the new specification.


The previous BS921 650V working classification would come under the 1000V maximum working voltage in IEC specification.


You will note that the new specification offers a higher and safer working voltage of 1000V.


For those exposed through risk assessment of exposure to higher voltages, a selection of matting up to class 4 can be taken.


A new feature of the BS EN 61111 is that all classes are colour coded every running metre on the underside, as per table below.

Table 2


The new specification is more comprehensive in its development and apart from electrical insulation, requires additional material testing for:-


         Mechanical Puncture Resistance;

         Oil Resistance;

         Acid Resistance;

         Slip Resistance;

         Flame Retardancy;


         Marking Durability.

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