EN 12811-4:2013

Temporary works equipment - Part 4: Protection fans for scaffolds - Performance requirements and product design

This European Standard specifies product requirements, methods of structural and general design and tests for protection fans for scaffolds to protect workers as well as members of public from objects that may fall off the outside edge of scaffolds being used close to where they are working or passing by.
This European Standard only applies to protection fans while the scaffold is being used as a working place.
Protection fans attached to structures other than scaffolds as defined in EN 12811 1 are outside the scope of this European Standard.
This European Standard applies only to protection fan systems on to which construction debris may fall from 24 m or less.
This European Standard ensures resistance of protection fans for most blunt falling objects representing an impacting energy not exceeding 720 J.
NOTE   This energy corresponds to a 3 kg object falling from 24 m.
This European Standard does not cover the requirements for the total area to be protected against falling items.

Temporäre Konstruktionen für Bauwerke - Teil 4: Schutzdächer für Arbeitsgerüste - Leistungsanforderungen, Entwurf, Konstruktion und Bemessung des Produkts

Diese Europäische Norm legt Produktanforderungen, Verfahren zum Entwurf, zur Konstruktion und Bemessung sowie Versuche für Schutzdächer für Arbeitsgerüste fest, um Arbeiter sowie andere Personen vor eventuell herabfallenden Gegenständen zu schützen.
Die Europäische Norm gilt nur für Schutzdächer an Gerüsten, die als Arbeitsplatz verwendet werden.
Schutzdächer, die an anderen Konstruktionen als an Arbeitsgerüsten nach EN 12811-1 angebracht werden, gehören nicht zum Anwendungsbereich dieser Europäischen Norm.
Diese Europäische Norm gilt nur für Schutzdachsysteme, auf die Bauschutt aus 24 m oder weniger Höhe fallen könnte.
Diese Europäische Norm stellt die Widerstandsfähigkeit von Schutzdächern für die meisten herabfallenden Gegenstände bei einer Aufschlagenergie von nicht mehr als 720 J sicher.
ANMERKUNG   Diese Energie entspricht einem Gegenstand mit einer Gewichtskraft von 3 kg, der aus einer Höhe von 24 m herabfällt.
Diese Europäische Norm deckt nicht die Anforderungen an den gesamten Bereich ab, der vor herabfallenden Gegenständen geschützt werden muss.

Équipements temporaires de chantiers - Partie 4: Pare-gravats pour échafaudages - Exigences de performance et conception du produit

La présente Norme européenne spécifie les exigences relatives au produit, les méthodes d’étude et de dimensionnement des structures ainsi que les essais relatifs aux pare-gravats pour échafaudages, destinés à protéger tant les ouvriers que les passants contre toute chute d'objets provenant d'échafaudages.
Cette norme européenne s'applique uniquement aux échafaudages utilisés comme plateforme de travail.
Les pare-gravats fixés à des structures autres que des échafaudages tels que définis dans l'EN 12811-1 ne relèvent pas du domaine d'application de la présente norme.
La présente norme s'applique uniquement aux systèmes de pare-gravats susceptibles de recevoir des débris de construction chutant d'une hauteur maximale de 24 m.
La présente norme a pour objet de garantir la résistance des pare-gravats à la chute de la plupart des objets contondants représentant une énergie d'impact n'excédant pas 720 J.
NOTE   Cette énergie correspond à un objet de 3 kg tombant d'une hauteur de 24 m.
La présente norme ne prescrit pas d'exigences relatives à l'ensemble de la zone à protéger contre les chutes d'objets.

Oprema za začasne gradnje - 4. del: Varovalni nadstreški za odre - Zahtevane lastnosti in projektiranje

General Information

• Status: Published
• Publication Date: 26-Nov-2013
• ICS: 91.220 - Construction equipment
• Technical Committee: CEN/TC 53 - Temporary works equipment
• Drafting Committee: CEN/TC 53/WG 13 - Protection Fans on Scaffolds
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 03-Dec-2024
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12811-4:2014 - Temporary works equipment - Part 4: Protection fans for scaffolds - Performance requirements and product design

Overview

EN 12811-4:2013 - Temporary works equipment: Part 4 - Protection fans for scaffolds - defines performance requirements, product design methods and test procedures for protection fans attached to scaffolds. The standard applies to protection fan systems intended to arrest construction debris or blunt falling objects from heights of 24 m or less, and ensures resistance to impacts with an energy up to 720 J (equivalent to a 3 kg object falling from 24 m). It covers material selection, structural design, classification, testing, marking and product documentation while clarifying limits (e.g., it does not cover the total protected area or fans attached to non-scaffold structures).

Key topics and technical requirements

• Scope & limits
  • Applies only while the scaffold is used as a working place and only to scaffold-attached protection fans.
  • Maximum design impact energy covered: 720 J.
• Classification
  • Classes for snow load (SL0 / SL1), shape (V0 / V1) and width (B1–B7) to standardize product families and performance claims.
• Materials
  • Material-specific requirements for steel, timber and aluminium components are specified; compatibility with scaffold components is required.
• Design and structural requirements
  • Structural design methods reference Eurocode principles and include rules for arresting surfaces, external supports, fixings and partial safety factors.
  • Special provisions for timber elements and connections are included.
• Actions and load combinations
  • Defines permanent and variable imposed loads, and variable imposed load classes relevant for protection fans.
• Testing & verification
  • Test procedures describe representative test samples, impactor characteristics, test setup and required results to demonstrate compliance.
  • Test reports and product manuals are required to document assessed configurations and installation instructions.
• Marking & documentation
  • Product manuals and marking requirements ensure traceability, safe installation and use.

Applications and users

• Who uses it
  • Scaffold manufacturers, component designers, rental companies, façade contractors, site safety managers, certifying bodies and local authorities.
• Practical uses
  • Urban construction and renovation projects where scaffolds are erected over public areas, pavements or roads; any site where falling debris could hit workers or passers-by.
  • Standardizes selection, installation and testing of protection fans to reduce the risk from falling objects and support compliance with work-at-height regulations.

Related standards

• EN 12811 series (Part 1: scaffolds; Part 2: materials; Part 3: load testing)
• EN 74 (couplers and connections)
• Eurocodes referenced for structural design: EN 1990 / EN 1993 / EN 1995 / EN 1999

Keywords: EN 12811-4:2013, protection fans for scaffolds, temporary works equipment, scaffold safety, falling objects, performance requirements, product design, impact testing, 720 J.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Temporäre Konstruktionen für Bauwerke - Teil 4: Schutzdächer für Arbeitsgerüste - Leistungsanforderungen, Entwurf, Konstruktion und Bemessung des ProduktsÉquipements temporaires de chantiers - Partie 4: Pare-gravats pour échafaudages - Exigences de performance et conception du produitTemporary works equipment - Part 4: Protection fans for scaffolds - Performance requirements and product design91.220Gradbena opremaConstruction equipmentICS:Ta slovenski standard je istoveten z:EN 12811-4:2013SIST EN 12811-4:2014en01-februar-2014SIST EN 12811-4:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12811-4
November 2013 ICS 91.220 English Version
Temporary works equipment - Part 4: Protection fans for scaffolds - Performance requirements and product design
Équipements temporaires de chantiers - Partie 4: Pare-gravats pour échafaudages - Exigences de performance et conception du produit
Temporäre Konstruktionen für Bauwerke - Teil 4: Schutzdächer für Arbeitsgerüste - Leistungsanforderungen, Entwurf, Konstruktion und Bemessung des Produkts This European Standard was approved by CEN on 28 September 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12811-4:2013: ESIST EN 12811-4:2014

(a) example of a horizontal protection fan (b) example of an inclined protection fan
Key 1 ties 2 protection fan 3 fan tie 4 scaffold 5 stiff structure Figure 1 — Examples of protection fan systems 3.1 protection fan system set of interconnected components used for the purpose of arresting falling objects, which includes (a) an assessed set of configurations and (b) the product manual 3.2 component part of a protection fan system which cannot be dismantled further Note 1 to entry: For example a support or a vertical frame. 3.3 element integral part of a component Note 1 to entry: For example a welded connection. 3.4 connection device device for the connection of components 3.5 configuration particular arrangement of connected components 3.6 protection fan configuration configuration of
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