BS 7404-2-2.1:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Telecontrol equipment and systems. Operating conditions Specification for classes of environmental conditions and power supplies
Hardcopy , PDF
12-15-1996
English
10-31-1991
Applies to coded bit serial data transmissions for monitoring and control of geographically widespread processes.
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.