BR904 Oct 1977
Specification for Feed Set for AC Immune DC Track Circuit using Relay to BR Specification 939A
Synopsis
This feed set is intended for use with a Track Relay to BR specification no. 939A and is suitable for ballast resistances from infinity to 3 ohms.
Read full standard
Registered
Withdrawn
Other
- Issued:
- 01/10/1977
- Published:
- 01/10/1977
- In Force:
- 01/10/1977
- Withdrawn:
- 01/07/1990
Details
| Consultation Status | Closed |
| Vehicle Assessment | No |
| Lead Committee | Control Command and Signalling - CCS |