Name:
NR BR 939 ISSUE A3 PDF
Published Date:
06/01/1977
Status:
[ Active ]
Publisher:
Network Rail
This specification relates to design requirements for miniature tractive armature A.C. immune D.C. neutral track relays of the plug-in type for use in railway signalling circuits
| Edition : | A3 |
| File Size : | 1 file , 6.4 MB |
| Number of Pages : | 30 |
| Published : | 06/01/1977 |