Revised
This International Standard specifies requirements for EHDERS (extra heavy-duty electrical rigid steel) conduits, couplings, nipples and elbows for electrical installations, including communications and fibre optics. This standard also specifies threads for these components. It is not applicable to the conduits specified in IEC 60423.
WITHDRAWN
IEC 60981:1989 ED1
WITHDRAWN
IEC 60981:2004 ED2
99.60
Withdrawal effective
20 gush 2019
PUBLISHED
IEC 60981:2019 ED3