Fretting/fatigue of catenaries at roller support positions (TM-ETR-022)

Catenary strand breakages at portal structure roller supports are frequently reported during routine inspections of Mk 1 0/H equipments. First indications of trouble on the LM region E.M.L. scheme were reported early in 1970, although ER has for some time been applying stainless steel bridles to by-pass the Cd/Cu catenary...