CEI EN 61231/A1 PDF

INTRODUCTION TO THE AMENDMENT

This proposal serves:

a) the implementation of the low frequency square wave operation in ILCOS (International Lamp Coding System):

b) the implementation of lamps for use in high-pressure mercury equipment under 5.7.1.2. In order to distinguish this, other lamps are listed as normal lamps under 5.7.1.1.

c) further editorial changes as being presented with PRESCO(RTK)198 and agreed by PRESCO.