Landing doors

• Pages: 73-76

B3. Landing doors

B3.1. General

B3.l.l. The openings in the well giving access to the lift car

should be provided with imperforate doors. When closed, those

doors should completely cover the openings, subject to the

necessary clearance, which should be as small as possible and in

any case less than ¼in. (6mm).

B3.2. Strength of landing doors and their frames

B3.2.l. (1) Doors and their frames should be so constructed

that the doors will not become deformed in the course of time.

It is recommended that metal doors should be used in all cases.

(2) The use of glass, even wired glass, or of plastic material

should be allowed only for vision panels. The horizontal dimen-

sion of such vision panels should not be more than 6in. (15cm).

B3.2.2. Landing doors should comply with the fire prevention

and protection rules in the country where the lift is installed.

Without necessarily being as fire-resistant as the walls of the well

onto which they open, landing doors should afford a degree of

protection against fire corresponding to that required for those

walls.

B3.2.3. Doors, including vision panels (if any) and locks,

should have adequate strength and rigidity.'

'In this respect the following criterion could be adopted: locked landing

doors should withstand without permanent deformation a horizontal force of

661bf (3Okgf or 3OdaN) applied at any point on either side of a door panel,

this force to be evenly distributed over an area of 4sq.in. (25cm2) in a round

or square section. After this test the doors should function normally.

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