English to Swedish Tech/Engineering Transport / Transportation / Shipping Trains

Översätter en juridisk text om järnvägsbestämmelser:

"In curves with a radius no less than 190 m in passing and side tracks and in curves with a radius no less than 250 m in line tracks and mainline tracks, the requirements referred to in paragraphs 3(1) and (4) are waived and continuous welded rail tracks should be used if restraint stress corresponding to the temperature of rails (23 ± 3)° C is induced in rails, at the same time solutions to increase stability of continuous welded rail tracks or reliability of use must be implemented."

Den engelska texten är en översättning från polska.

Helsvetsade järnvägsspår?