Name:
NR BR 934 ISSUE A4 PDF
Published Date:
05/01/1977
Status:
[ Active ]
Publisher:
Network Rail
This specification relates to design requirements for miniature tractive armature D.C. slow release neutral line relays of the plug in type for use in railway signaling circuits, irrespective of the presence in the circuit of alternating current at industrial frequency. The design is based on the requirements that the delay is sufficient to cover the changeover time of an A.C. immunized neutral line relay manufactured in accordance with B.R.
| Edition : | A4 |
| File Size : | 1 file , 6.3 MB |
| Number of Pages : | 31 |
| Published : | 05/01/1977 |
