1. the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems with the arrangement of pantographs specified in point

2. - the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems with the arrangement of pantographs specified in point 4.2.2.9,

3. — the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems with the arrangement of pantographs specified in point 4.2.2.9,

4. The pantographs shall not be linked electrically in case of AC power supply systems

5. the minimum spacing between adjacent pantographs below those shown in the Table 4.2.17,

6. The pantographs shall not be linked electrically in case of AC power supply systems.

7. — the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems,

8. the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems,

9. (a) the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems;

10. the geometry of different elements of the overhead contact line shall prevent pantographs short-circuiting or bridging both power systems