C
>
a
a
0
+
N
a
N
1
_
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
IEC 61215-1-
4
.
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
IEC 61215-1-
4
.
C
>
a
N
a
0
+
N
a
N
1
REDLINE VERSION
VERSION REDLINE
.
CONTENTS
FOREWORD ........................................................................................................................... 4