| . |
PART 'A' |
| . |
Welding of rails |
| 501 |
General 501 |
| 502 |
Alumino Thermit Welding of rails 502 |
| 503 |
Tolerances allowed in the case of Flash butt welds 503 |
| 504 |
Short pre-heat welding process 504 |
| . |
PART 'B' |
| . |
Short welded rails |
| 505 |
Definitions 505 |
| 506 |
Track structure for SWR 506 |
| 507 |
Conditions of laying 507 |
| 508 |
Laying of short welded rails 508 |
| 509 |
Maintenance of short welded rails 509 |
| 510 |
Gap survey and adjustment of gap 510 |
| 511 |
Conversion of SWR into LWR 511 |
| . |
PART 'C' |
| . |
Long welded rails/Continous welded rails |
| 512 |
Reference to LWR/CWR Manual 512 |