BS/EN 131-7-2013 pdf download.Ladders Part 7 : Mobile ladders with platform.
This BS/EN 131-7 defines terms and specifies the general design characteristics of mobile ladders with platform. It applies to mobile ladders with a working platform, with a maximum area of 1 m2, and a maximum platform height of 5 m. to be used only by one person at the time. The maximum load is 150 kg which includes a maximum combined load of the user and any tools, equipment and materials
It does not apply to portable ladders according to EN 131-1, to portable ladders according to EN 131-4, to portable ladders for fire service use according to EN 1147, to loft ladders according to EN 14975, to step stools according to EN 14183. to Stairs, stepladders and guard-rails according to EN ISO 14122-3 and to insulating ladders according to EN 50528.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 131-2, Ladders — Part 2: Requirements, testing. marking
EN 131-3, Ladders – Part 3: User Instructions
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4 Requirements
4.1 General
A mobile platform ladder shall be designed and manufactured to prevent accidental slips of product andlor user.
The marking shall be legible and durable.
The durability of the marking shall be verified.
Wide rungs/steps and platforms shall be designed to be horizontal when the product is used on a flat floor.
Wide rungs, rungs, steps and platforms made of metal or plastics shall have a textured surface on the working
face to reduce slipping. The contact surface of the coverings shall adhere firmly to the rungs or steps. 4.2 Surface finishes
This requirement shall be according EN 131-2.
The coating of wooden parts shall be transparent and permeable to water vapour. This does not apply to platform components manufactured from plywood materials.
4.3 Materials
4.3.1 General
The requirements on materials shall be according to EN 131-2 apply unless otherwise stated.
4.3.2 Wood
Wood used for the platform should be of durable quality and be suitable for both indoor and outdoor use.
The coating shall be transparent and permeable to water vapour.
Coatings applied to platform components manufactured from plywood materials shall be permeable to water but may be opaque.
The surface of the platform shall be slip resistant.
4.4 Stabiliser
If the design makes stabilisers necessary to fulfil the stability test requirements, they shall be supplied with the ladder. It shall be clear that the product is meant to be used with stabilisers. Specific safety instruction shall be visible on the ladder and may be repeated on the stabilisers.
4.5 Ballast
If the design makes ballasts necessary to fulfil the stability test requirements, they shall be supplied with the ladder. It shall be clear that the product is meant to be used with a ballast. Specific safety instruction shall be visible on the ladder and may be repeated on the ballast.
5 Dimensional requirements
5.1 Ascending legs
5.1.1 Ascending legs with angle 600 a ≤ 750
The dimensional requirements for ascending legs angle 60° ≤ a S 75are shown in Table 2.
5.2 Supporting legs
The projection on the horizontal plan of the platform shall be within the contact points of the ladder with the ground within a maximum tolerance of 100 mm due to the possible eccentricity of the swivel casters or other design of the platform ladder.
If the projection on the horizontal plan of the platform within the contact points of the ladder with the ground is greater than 100 mm, additional precautions are taken regarding the stability. The stability test described In 6.7 is not suitable for such described products.
5.3 Platform and toe board
The platform shall be permanently fixed to the ladder. The platform shall be equipped with toe board on all sides where access is not permitted, except the ascending side.
The dimensions (width and length) shall be between 400 mm and 1 000 mm (see Table 4).
The platform shall be equipped with a solid toe board such that its top edge is at least 50 mm above the adjacent platform level. A toe board on the access side is not permitted unless it is removable during access to and from the platfom.BS/EN 131-7-2013 pdf download.