On existing high-speed lines the phase separation sections are not compatible with the requirement of pantograph distance between three pantographs of more than 143 m. Between existing high-speed lines and upgraded lines there is no automatic control to trigger the opening of the main circuit breaker on the traction vehicles.
Na obstoječih progah za visoke hitrosti odseki ločevanja faz niso skladni z zahtevo po razdalji med tremi odjemniki toka, ki naj znaša najmanj 143 m. Med obstoječimi progami za visoke hitrosti in nadgrajenimi progami ni avtomatske kontrole, ki bi sprožila odprtje glavnega prekinjevalca električnega tokokroga na vlečnih enotah.