English to Polish Tech/Engineering Engineering: Industrial silosy - systemy wyciągowe

To empty a silo in the event of the failure of the discharge system from the outside, additional access doors (with minimum dimensions of 2,0 m x 1,2 m) shall be provided.
The number and position of these additional access doors depend on the shape of the silo (see Table E.1)

Where the filling height exceeds 6 m, poking openings are required in the silo through which long poles for poking can be introduced in the direction towards the access doors.

These openings shall be placed directly above the access doors (see Figure E.1), each pocking opening shall be equipped with a working platform, and the opening shall be at least 1 m above the platform level.

Where the filling height exceeds 9 m, additional poking openings are required. The vertical distance between such openings shall not exceed 5 m.