UNE 21009:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Dimensions of ball and socket couplings of string insulator units
Hardcopy , PDF
09-22-2021
Spanish, Castilian, English
07-28-1989
This standard applies to string insulator units of the cap and pin and long rod types and their associated metal fittings.
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.