1DV DR Modification ofClause 1 to replace with the following:
This part of IEC 60079 standard specifies alternative requirements for construction, test and marking for electrical equipment that provides Equipment Protection Level EPL) Ga when single standardised Types of Protection (e.g. Ex “ia” , Ex “ma”, Ex “da”) cannot be applied. This standard also applies to equipment mounted across a boundary where different Equipment Protection Levels may be required.
