Name:
NR BR 923 ISSUE A PDF
Published Date:
02/01/1964
Status:
[ Active ]
Publisher:
Network Rail
This specification covers moving-iron direct current polar line relays for railway signalling. It provides for relays having up to two contact arms as standard. Relays having contact arrangements or resistance different from those regarded as standard may be obtained to this specification by arrangement between the purchaser and manufacturer.
| Edition : | A |
| File Size : | 1 file , 1.4 MB |
| Number of Pages : | 9 |
| Published : | 02/01/1964 |