2024.05.14

FOS 2011-16: Free space at the top of the shaft

Question: What free space should be left at the top of the shaft after modifying or replacing the elevator's equipment rack, control system or machinery to prevent the risk of a person being crushed by the elevator car?

Answer: There must be free space or other measures must be taken in accordance with point 2.2 of the basic health and safety requirements of the lift directive. To meet the requirements of the Swedish National Board of Housing, Building and Planning (BFS 2011:12 H12 with amendments) after the amendment as above, the safety space must be at least 1.0 m + 0.035 v² m at the top of the shaft. (See the harmonised standards SS-EN 81-20:2014 point 5.2.5.7 to which the Swedish National Board of Housing, Building and Planning refers).

The requirement does not apply to lifts whose free space is designed in accordance with Elevator Standard 92 (1973), or in accordance with corresponding later applicable rules. In short, this means:

• Elevators built before 1973 that do not meet Elevator Standard 92
  1.0 m free space + 0.035 v² m
• Elevators built before 1973 that meet Elevator Standard 92
  700 mm free space + 35 v² mm

NOTE! That there must also be a free flat surface or platform on the car roof of at least 0.3 m² for the free space to be considered in accordance with the rules in Elevator Standard 92.

• Elevators built 1973 – 1990
  700 mm free space + 35 v² mm
• Elevators built after 1991 already meet the requirement for free safety space at the top of the shaft (1.0 m + 0.035 v² m).

Exception: According to Elevator Standard 92, cable drum and chain elevators must have 950 mm of free space.

Last revised 20170828, 3 revisions. Revised 2017 due to new Lift Directive and standard.