Hvis underkanten af en forhindringsdeflektor som specificeret i afsnit 4.2.2.5 er mindre end 130 mm over ordinær skinne under alle forhold, opfylder den funktionskravet til banerømmerne, som man i så fald ikke behøver at montere.
If an obstacle deflector specified in clause 4.2.2.5 has its lower edge at less than 130 mm above the plain rail in all conditions, it fulfils the functional requirement of the life guards and therefore it is permissible not to fit life guards.