![header thumbnail](/images/publishers\ieee_cover.gif)
IEEE C37.93-2004
Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
![header thumbnail](/images/publishers\ieee_cover.gif)
IEEE Guide for Power System Protective Relay Applications of Audio Tones Over Voice Grade Channels
Available format(s)
PDF
Withdrawn date
25-03-2021
Language(s)
English
Published date
23-08-2004
Committee |
Power System Communications and Cybersecurity
|
DocumentType |
Standard
|
Pages |
49
|
PublisherName |
Institute of Electrical & Electronics Engineers
|
Status |
Withdrawn
|
Supersedes |
IEEE 487-2015 | IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric Supply Locations -- General Considerations |
IEEE 487-2007 | IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations |
IEEE 487.1-2014 | IEEE Standard for the Electrical Protection of Communication Facilities Serving Electric Supply Locations Through the Use of On-Grid Isolation Equipment |
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.