Swimming pool equipment - Part 11: Additional specific safety requirements and test methods for moveable pool floors and moveable bulkheads installed in pools for public use

This part of EN 13451 specifies the safety requirements and the means of their verification for the design and construction of moveable pool floors and moveable bulkheads for use in classified swimming pools as specified in EN 15288-1 and EN 15288-2.
This part of EN 13451 when used with EN 13451-1 deals with the significant hazards, hazardous situations and events, as listed in Annex A, relevant to this equipment when used as intended and under the conditions of misuse reasonably foreseeable by the manufacturer during normal operation and service.
When requirements of this part of EN 13451 are different from those which are stated in EN 13451-1, the requirements of this part of EN 13451 take precedence over the requirements of EN 13451-1 for machines that have been designed and built according to the requirements of this part of EN 13451.
The requirements of this part of EN 13451 take priority over those in EN 13451-1.
This document doesn’t apply to installations or equipment intended to move people into or out of a pool tank.
This part of EN 13451 is not applicable to equipment which is manufactured before the date of its publication as EN.

Schwimmbadgeräte - Teil 11: Zusätzliche besondere sicherheitstechnische Anforderungen und Prüfverfahren für höhenverstellbare Zwischenböden und bewegliche Beckenabtrennungen in öffentlichen Schwimmbädern

Dieses Dokument legt Sicherheitsanforderungen und die Mittel ihrer Überprüfung der Gestaltung und Konstruktion höhenverstellbarer Zwischenböden und beweglicher Beckenabtrennungen zum Gebrauch in klassifizierten Schwimmbädern, wie in EN 15288 1 und EN 15288 2 festgelegt, fest.
Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und  ereignisse, wie in Anhang A aufgelistet, die für diese Geräte relevant sind, wenn diese wie vorgesehen und unter dem Zustand vernünftigerweise absehbaren Missbrauchs durch den Hersteller während des normalen Betriebs und Leistung genutzt werden.
ANMERKUNG   Wenn Anforderungen dieses Teils der Normenreihe EN 13451 von denen abweichen, die in EN 13451 1 beschrieben werden, haben die Anforderungen dieses Teils der Normenreihe EN 13451 für höhenverstellbare Zwischenböden und bewegliche Beckenabtrennungen, die entsprechend den Anforderungen dieses Teils der Normenreihe EN 13451 konstruiert und gebaut wurden, Vorrang vor den Anforderungen der EN 13451 1.
Dieses Dokument gilt nicht für Anlagen oder Geräte, die Menschen in oder aus einem Schwimmbecken bewegen.
Dieses Dokument gilt nicht für Geräte, die vor dem Datum seiner Veröffentlichung als Europäische Norm hergestellt worden sind.

Équipement de piscine - Partie 11 : Exigences de sécurité et méthodes d’essai complémentaires propres aux fonds de bassins mobiles et cloisons mobiles installés dans des piscines à usage public

Le présent document spécifie les exigences de sécurité, ainsi que les moyens de les vérifier dans le cadre de la conception et de la construction de fonds de bassins mobiles et de cloisons mobiles destinés à être utilisés dans les piscines classifiées tel que spécifié dans l’EN 15288-1 et l’EN 15288-2.
Le présent document traite de l’ensemble des dangers, situations dangereuses et événements dangereux significatifs énumérés à l’Annexe A, pertinents pour cet équipement lorsqu’il est utilisé comme prévu, ainsi que dans les conditions de mauvais usage raisonnablement prévisibles par le fabricant en fonctionnement normal et pendant l’entretien.
NOTE   Lorsque les exigences de la présente partie de la série EN 13451 diffèrent de celles indiquées dans l’EN 13451-1, les exigences de la présente partie de la série EN 13451 prévalent sur celles de l’EN 13451-1 pour les fonds mobiles et les cloisons mobiles ayant été conçus et construits selon les exigences de la présente partie de la série EN 13451.
Le présent document ne s’applique pas aux installations ou équipements destinés à faire entrer ou sortir des personnes du bassin.
Le présent document n’est pas applicable aux équipements qui sont fabriqués avant la date de sa publication en tant que Norme européenne.

Oprema za plavalne bazene - 11. del: Dodatne posebne varnostne zahteve in preskusne metode za premične bazenske pode in premične pregrade, vgrajene v javne plavalne bazene

Ta del standarda EN 13451 določa varnostne zahteve in načine njihovega preverjanja za načrtovanje in izdelavo premičnih tal bazenov in premičnih pregrad za uporabo v klasificiranih plavalnih bazenih, kot je določeno v standardih EN 15288-1 in EN 15288-2.
Ta del standarda EN 13451, ko se ga uporablja s standardom EN 13451-1, obravnava večja tveganja, nevarne razmere in dogodke, opisane v dodatku A, ki so pomembni za to opremo, ko se med normalnim delovanjem in vzdrževanjem uporabljajo v skladu z njihovim namenom in pod pogoji razumno pričakovane nepravilne uporabe, ki jih določa proizvajalec.
Ko se zahteve tega dela standarda EN 13451 razlikujejo od zahtev, navedenih v standardu EN 13451-1, imajo zahteve tega dela standarda EN 13451 prednost pred zahtevami standarda EN 13451-1 za stroje, ki so bili zasnovani in izdelani v skladu z zahtevami tega dela standarda EN 13451.
Zahteve tega dela standarda EN 13451 imajo prednost pred zahtevami standarda EN 13451-1.
Ta dokument se ne uporablja za naprave ali opremo, namenjeno premeščanju ljudi v bazenski rezervoar ali iz njega.
Ta del standarda EN 13451 se ne uporablja za opremo, ki je bila izdelana, preden je bil dokument objavljen kot standard EN.

General Information

Status
Published
Public Enquiry End Date
19-Dec-2016
Publication Date
08-Mar-2023
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
21-Feb-2023
Due Date
28-Apr-2023
Completion Date
09-Mar-2023

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SLOVENSKI STANDARD
SIST EN 13451-11:2023
01-april-2023
Nadomešča:
SIST EN 13451-11:2014
Oprema za plavalne bazene - 11. del: Dodatne posebne varnostne zahteve in
preskusne metode za premične bazenske pode in premične pregrade, vgrajene v
javne plavalne bazene
Swimming pool equipment - Part 11: Additional specific safety requirements and test
methods for moveable pool floors and moveable bulkheads installed in pools for public
use
Schwimmbadgeräte - Teil 11: Zusätzliche besondere sicherheitstechnische
Anforderungen und Prüfverfahren für höhenverstellbare Zwischenböden und bewegliche
Beckenabtrennungen in öffentlichen Schwimmbädern
Équipement de piscine - Partie 11 : Exigences de sécurité et méthodes d ’essai
complémentaires propres aux fonds de bassins mobiles et cloisons mobiles installés
dans des piscines à usage public
Ta slovenski standard je istoveten z: EN 13451-11:2022
ICS:
97.220.10 Športni objekti Sports facilities
SIST EN 13451-11:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 13451-11:2023

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SIST EN 13451-11:2023


EN 13451-11
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2022
EUROPÄISCHE NORM
ICS 97.220.10 Supersedes EN 13451-11:2014
English Version

Swimming pool equipment - Part 11: Additional specific
safety requirements and test methods for moveable pool
floors and moveable bulkheads installed in pools for public
use
Équipement de piscine - Partie 11 : Exigences de Schwimmbadgeräte - Teil 11: Zusätzliche besondere
sécurité et méthodes d'essai complémentaires propres sicherheitstechnische Anforderungen und
aux fonds de bassins mobiles et cloisons mobiles Prüfverfahren für höhenverstellbare Zwischenböden
installés dans des piscines à usage public und bewegliche Beckenabtrennungen
This European Standard was approved by CEN on 28 November 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13451-11:2022 E
worldwide for CEN national Members.

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Classification of movable pool floors and movable bulkheads . 7
5 Safety requirements . 8
5.1 General . 8
5.2 Moveable pool floors . 9
5.2.1 General . 9
5.2.2 Structural integrity . 9
5.2.3 Abnormal movements . 10
5.2.4 Prevention of entrapment . 10
5.2.5 Slip resistance . 10
5.2.6 Prevention of falling off . 10
5.2.7 Prevention of swimming underneath . 11
5.2.8 Prevention of hazards during movement of the floor . 11
5.2.9 Prevention of hazards coming from water depth . 11
5.2.10 Prevention of hazards coming from diving . 12
5.2.11 Prevention of hazards coming from interference with other equipment . 12
5.3 Moveable bulkheads . 12
5.3.1 General . 12
5.3.2 Dimensions . 12
5.3.3 Structural integrity . 12
5.3.4 Prevention of entrapment . 12
5.3.5 Slip resistance . 12
5.3.6 Prevention of hazards during movement of the bulkhead . 13
5.3.7 Prevention of hazards coming from rails . 13
6 Test methods . 13
6.1 General . 13
6.2 Closure devices for perimeter gaps – Flexible closure devices – Test procedure . 14
7 Instructions and information . 16
7.1 General . 16
7.2 User manual (Instruction handbook) . 16
Annex A (informative) List of significant hazards . 18
Bibliography . 21

2

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
European foreword
This document (EN 13451-11:2022) has been prepared by Technical Committee CEN/TC 136 “Sports,
playground and other recreational facilities and equipment”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 13451-11:2014.
EN 13451-11:2022 includes the following significant technical changes with respect to
EN 13451-11:2014:
— normative references have been updated;
— requirements for the recessed ledges and steps have been modified;
— safety requirements for the prevention of interference with the circulation system have been added;
— requirement that no person shall be on the movable floor or bulkhead when moving has been added;
— new Annex A of all thinkable hazards has been added.
The EN 13451 series, under the general title “Swimming pool equipment”, consists of the following parts:
— Part 1: General safety requirements and test methods for equipment installed in pools for public use;
— Part 2: Additional specific safety requirements and test methods for ladders, stepladders and handle
bends;
— Part 3: Additional specific safety requirements and test methods for inlets and outlets and water/air
based water leisure features installed in pools for public use;
— Part 4: Additional specific safety requirements and test methods for starting platforms;
— Part 5: Additional specific safety requirements and test methods for lane lines and dividing line;
— Part 6: Additional specific safety requirements and test methods for turning boards;
— Part 7: Additional specific safety requirements and test methods for water polo goals;
— Part 10: Additional specific safety requirements and test methods for diving platforms, diving
springboards and associated equipment;
— Part 11: Additional specific safety requirements and test methods for moveable pool floors and
moveable bulkheads installed in pools for public use.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
3

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
4

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
Introduction
This document is of relevance, in particular, for the following stakeholder groups representing the market
players:
— manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance etc.).
Others can be affected by the level of safety achieved with the means of the document by the above-
mentioned stakeholder groups:
— operators/employers (small, medium and large enterprises);
— service providers, e.g. for maintenance (small, medium and large enterprises).
NOTE Due to the huge variety of individual drive systems, this document cannot provide specific requirements
for each system. A risk assessment based on EN 15288-2 is recommended.
5

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
1 Scope
This document specifies the safety requirements and the means of their verification for the design and
construction of moveable pool floors and moveable bulkheads for use in classified swimming pools as
specified in EN 15288-1 and EN 15288-2.
This document deals with all significant hazards, hazardous situations and events, as listed in Annex A,
relevant to this equipment when used as intended and under the conditions of misuse reasonably
foreseeable by the manufacturer during normal operation and service.
NOTE When requirements of this part of EN 13451 series are different from those which are stated in
EN 13451-1, the requirements of this part of EN 13451 series take precedence over the requirements of EN 13451-1
for moveable floors and moveable bulkheads that have been designed and built according to the requirements of
this part of EN 13451 series.
This document does not apply to installations or equipment intended to move people into or out of a pool
tank.
This document is not applicable to equipment which is manufactured before the date of its publication as
a European standard.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13451-1:2020, Swimming pool equipment — Part 1: General safety requirements and test methods for
equipment installed in pools for public use
EN 13451-4, Swimming pool equipment — Part 4: Additional specific safety requirements and test methods
for starting platforms
EN 13451-5, Swimming pool equipment — Part 5: Additional specific safety requirements and test methods
for lane lines and dividing line
EN 13451-6, Swimming pool equipment — Part 6: Additional specific safety requirements and test methods
for turning boards
EN 15288-1:2018, Swimming pools for public use — Part 1: Safety requirements for design
EN 15288-2, Swimming pools for public use — Part 2: Safety requirements for operation
EN 62061, Safety of machinery — Functional safety of safety-related electrical, electronic and
programmable electronic control systems
EN ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design (ISO 13849-1)
EN ISO 13850, Safety of machinery — Emergency stop function — Principles for design (ISO 13850)
EN ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs (ISO 13857)
ISO 7010:2019, Graphical symbols — Safety colours and safety signs — Registered safety signs
6

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13451-1:2020,
EN 15288-1:2018 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
3.1
moveable pool floor
adjustable floor located in a pool basin designed to change the water depth of the pool
Note 1 to entry: See Table 1.
3.2
open side of a moveable pool floor
open side of a moveable floor not moving alongside a pool wall
3.3
water depth
usable depth measured between water surface and the upper surface of a moveable floor
3.4
moveable bulkhead
moveable structure located in a pool basin, providing a solid partition to divide a pool into sections
Note 1 to entry: See Table 1.
3.5
closure device
flexible device used to close gaps between the moveable floor/bulkhead and pool wall/floor
Note 1 to entry: For example, flexible lips, rubber gaskets, etc. can be used.
4 Classification of movable pool floors and movable bulkheads
For the classification, see Table 1.
Table 1 — Classification
 Moveable pool floors Moveable bulkheads
Type 1 Moveable floors bearing loads by buoyancy Moveable bulkheads bearing loads by
only. buoyancy only.
Type 2 Moveable floors bearing loads by drive Moveable bulkheads bearing loads by drive
systems supported by the pool structure. systems supported by the pool structure.
7

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
5 Safety requirements
5.1 General
Moveable floors and moveable bulkheads shall comply with the safety requirements of this clause.
Hatches for service or cleaning in the moveable pool floor or the moveable bulkhead shall have a
minimum diameter of 600 mm. If divers with their equipment need access, a minimum diameter of
800 mm is required. Square and rectangular shaped hatches are allowed, as long the main dimensions
are considered.
NOTE 1 The minimum number of hatches can depend on the pools size.
The pool design shall ensure good water treatment throughout the pool with the moveable floor and or
the moveable bulkhead. The design of water circulation shall take into account the need of equal flow in
different pool areas when only a part of the complete pool is to be fitted with a moveable floor or
bulkhead.
NOTE 2 It can be necessary to tighten the construction tolerances of the structure and finishes within the basin
in order to meet the entrapment requirements according to this document.
During maintenance and inspection works performed in the area underneath the equipment:
a) the operation of the equipment shall be prevented by tamper proof systems (power isolator lockable
in the “off” position with a removable key);
b) the equipment shall be secured against inadvertent movements.
The drive system shall only be accessible for maintenance and inspection. In all other cases, the
accessibility shall be prevented. The access to the drive system shall only be possible for qualified
persons, based on the manufacturer's risk assessment.
When applicable, the regulations for underwater working shall be complied with.
At least one survival area or one escape opening shall be provided in case the securing system fails.
NOTE 3 When the pool is fitted with a perimeter corridor, it is advisable to install an underwater window to
allow visual control of the area underneath the equipment.
Where the manufacturer requires a specific supporting system to support the equipment in case the pool
is empty:
c) it shall always be used in accordance with manufacturer’s instructions;
d) if the system is designed to bear only the dead load of the equipment, access to its surface shall always
be prevented.
Control systems of moveable floors and bulkheads shall be designed and constructed in such a way as to
prevent hazardous situations while moving the moveable floor or bulkhead. They shall be designed and
constructed in such a way that:
e) a fault in the hardware or the software of the control system causes an emergency stop of the
movement;
f) the moveable floor or bulkhead does not start unexpectedly;
g) a stop command leeds reliably to a stop of the movement.
For cable-less control, an automatic stop shall be activated when correct control signals are not received.
8

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SIST EN 13451-11:2023
EN 13451-11:2022 (E)
Control devices shall be:
h) clearly visible and identifiable;
i) positioned in such a way as to be safely operated without hesitation or loss of time and without
ambiguity, and give full view of the pool with the moveable floor or bulkhead;
j) designed in such a way that the movement of the control device is consistent with its effect.
Where there is more than one control position, the control system shall be designed in such a way that
the use of one of them precludes the use of the others, except for stop controls and emergency stops.
When movable floor or bulkhead has two or more control devices, each control device shall be equipped
with all the required control functions.
If a movable floor stops in a water depth not specified by the manufacturer (e.g. by a power supply
failure), the pool shall be closed for public use and a warning shall be given to the operator.
Moveable floors and bulkheads shall be designed and constructed in such a way that hazardous materials
and substan
...

SLOVENSKI STANDARD
oSIST prEN 13451-11:2016
01-december-2016
2SUHPD]DSODYDOQHED]HQHGHO'RGDWQHSRVHEQHYDUQRVWQH]DKWHYHLQ
SUHVNXVQHPHWRGH]DSUHPLþQHED]HQVNHSRGHLQSUHPLþQHSUHJUDGH
Swimming pool equipment - Part 11: Additional specific safety requirements and test
methods for moveable pool floors and moveable bulkheads
Schwimmbadgeräte - Teil 11: Zusätzliche besondere sicherheitstechnische
Anforderungen und Prüfverfahren für höhenverstellbare Zwischenböden und bewegliche
Beckenabtrennungen
Équipement de piscine - Partie 11 : Exigences de sécurité et méthodes d’essai
complémentaires propres aux fonds de bassins mobiles et cloisons mobiles
Ta slovenski standard je istoveten z: prEN 13451-11
ICS:
97.220.10 Športni objekti Sports facilities
oSIST prEN 13451-11:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 13451-11:2016

---------------------- Page: 2 ----------------------
oSIST prEN 13451-11:2016


DRAFT
EUROPEAN STANDARD
prEN 13451-11
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2016
ICS 97.220.10 Will supersede EN 13451-11:2014
English Version

Swimming pool equipment - Part 11: Additional specific
safety requirements and test methods for moveable pool
floors and moveable bulkheads
Équipement de piscine - Partie 11 : Exigences de Schwimmbadgeräte - Teil 11: Zusätzliche besondere
sécurité et méthodes d'essai complémentaires propres sicherheitstechnische Anforderungen und
aux fonds de bassins mobiles et cloisons mobiles Prüfverfahren für höhenverstellbare Zwischenböden
und bewegliche Beckenabtrennungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 136.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13451-11:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 13451-11:2016
prEN 13451-11:2016 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative References . 5
3 Terms and definitions . 5
4 Classification of movable pool floors and movable bulkheads . 6
5 List of significant hazards . 6
6 Safety requirements and/or protective measures . 6
6.1 General . 6
6.2 Moveable pool floors . 7
6.2.1 General . 7
6.2.2 Structural integrity . 7
6.2.3 Inadvertent movements . 8
6.2.4 Prevention of entrapment . 8
6.2.5 Slip resistance . 8
6.2.6 Prevention of falling off . 8
6.2.7 Prevention of swimming underneath . 9
6.2.8 Prevention of hazards during movement of the floor . 9
6.2.9 Prevention of hazards coming from water depth . 9
6.2.10 Prevention of hazards coming from diving . 9
6.2.11 Prevention of hazards coming from interference with other equipment . 10
6.3 Moveable bulkheads . 10
6.3.1 General . 10
6.3.2 Dimensions . 10
6.3.3 Structural integrity . 10
6.3.4 Prevention of entrapment . 10
6.3.5 Slip resistance . 10
6.3.6 Prevention of hazards during movement of the bulkhead . 10
6.3.7 Prevention of hazards coming from rails . 11
7 Test methods . 11
7.1 General . 11
7.2 Closure devices for perimeter gaps – Flexible closure devices . 13
7.2.1 Test procedure . 13
8 Instructions and information . 14
Annex A (normative) List of all possible significant hazards . 15
Annex B (normative) Operational and maintenance instructions for moveable floors and
moveable bulkheads . 18
B.1 Instruction for operation . 18
B.2 Maintenance . 18
A (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 19
Bibliography . 20

2

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oSIST prEN 13451-11:2016
prEN 13451-11:2016 (E)
European foreword
This document (prEN 13451-11:2016) has been prepared by Technical Committee CEN/TC 136 “Sports,
playground and other recreational facilities and equipment”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13451-11:2014.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
In relation to EN 13451-11:2014, the following significant changes have been made:
— normative references have been updated;
— requirements for the recessed ledges and steps have been modified;
— safety requirements for the prevention of interference with the circulation system have been
added;
— not any people on the movable floor or bulkhead when in operation have been added;
— a new Annex A of all thinkable hazards have been added;
The EN 13451 series, Swimming pool equipment, consists of the following parts:
— Part 1: General safety requirements and test methods
— Part 2: Additional specific safety requirements and test methods for ladders, stepladders and handle
bends
— Part 3: Additional specific safety requirements and test methods for inlets and outlets and water/air
based water leisure features
— Part 4: Additional specific safety requirements and test methods for starting platforms
— Part 5: Additional specific safety requirements and test methods for lane lines
— Part 6: Additional specific safety requirements and test methods for turning boards
— Part 7: Additional specific safety requirements and test methods for water polo goals
— Part 10: Additional specific safety requirements and test methods for diving platforms, diving
springboards and associated equipment
— Part 11: Additional specific safety requirements and test methods for moveable pool floors and
moveable bulkheads
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Introduction
The structure of safety standards in the field of machinery is as follows:
a) type-A standards (basic standards) giving basic concepts, principles for design, and general aspects
that can be applied to machinery;
b) type-B standards (generic safety standards) dealing with one or more safety aspects or one or more
types of safeguards that can be used across a wide range of machinery:
— type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature,
noise);
— type-B2 standards on safeguards (e.g. two-hand controls, interlocking devices, pressure-
sensitive devices, guards);
c) type-C standards (machinery safety standards) dealing with detailed safety requirements for a
particular machine or group of machines.
This document is a type C standard as stated in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
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1 Scope
This European Standard specifies the safety requirements and the means of their verification for the
design and construction of moveable pool floors and moveable bulkheads for use in classified
swimming pools as specified in EN 15288-1 and EN 15288-2.
This part of the EN 13451 series, when used with EN 13451-1, deals with the significant hazards,
hazardous situations and events, as listed in Annex A, relevant to this equipment when used as intended
and under the conditions of misuse reasonably foreseeable by the manufacturer during normal
operation and service.
When requirements of this part of the EN 13451 series are different from those which are stated in
EN 13451-1, the requirements of this part of the EN 13451 series take precedence over the
requirements of EN 13451-1 for machines that have been designed and built according to the
requirements of this part of the EN 13451 series.
The requirements of this part of the EN 13451 series take priority over those in EN 13451-1.
This document doesn’t apply to installations or equipment intended to move people into or out of a pool
tank.
This part of the EN 13451 series is not applicable to equipment which is manufactured before the date
of its publication as EN.
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 13451-1:2011, Swimming pool equipment - Part 1: General safety requirements and test methods
EN 13451-4, Swimming pool equipment — Part 4: Additional specific safety requirements and test
methods for starting platforms
EN 13451-5, Swimming pool equipment — Part 5: Additional specific safety requirements and test
methods for lane lines
EN 15288-1:2008+A1:2010, Swimming pools — Part 1: Safety requirements for design
EN 15288-2, Swimming pools - Part 2: Safety requirements for operation
EN ISO 12100, Safety of machinery - General principles for design - Risk assessment and risk reduction
(ISO 12100)
EN ISO 13850, Safety of machinery - Emergency stop function - Principles for design (ISO 13850)
EN ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and
lower limbs (ISO 13857)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13451-1:2011 and the
following apply.
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3.1
moveable pool floor
adjustable floor designed to change the water depth of the pool
3.2
open side of a moveable pool floor
open side of a moveable floor not moving alongside a pool wall
3.3
water depth
usable depth measured between water surface and the upper surface of a moveable floor
3.4
moveable bulkhead
moveable structure, providing a solid partition to divide a pool into sections
3.5
closure device
flexible device used to close gaps between the moveable floor/bulkhead and pool wall/floor
Note 1 to entry: For example, flexible lips, rubber gaskets, etc. can be used.
4 Classification of movable pool floors and movable bulkheads
For the classification, see Table 1.
Table 1 — Classification
 Moveable pool floors Moveable bulkheads
Type 1 Moveable floors bearing loads by buoyancy Moveable bulkheads bearing loads by
only. buoyancy only
Type 2 Moveable floors bearing loads by drive Moveable bulkheads bearing loads by drive
systems supported by the pool structure. systems supported by the pool structure.
5 List of significant hazards
Table A.1 shows all the significant hazards, hazardous situations and events identified by risk
assessment as significant for this type of equipment and which require action to eliminate or reduce the
risk. Table A.1 also indicates where they are dealt with in this European Standard.
For a particular floor or bulkhead, a risk assessment should be carried out by the manufacturer to
identify any additional significant hazards so that suitable protective measures can be taken. Additional
hazards are outside the scope of this standard. EN ISO 12100 describes procedures for the identification
and evaluation of hazards.
6 Safety requirements and/or protective measures
6.1 General
Machinery shall comply with the safety requirements and/or protective measures of this clause. In
addition, the machine shall be designed according to the principles of EN ISO 12100 for relevant but not
significant hazards, which are not dealt with by this document.
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Unless specified otherwise, machinery shall comply with the requirements of EN ISO 13850 and
EN ISO 13857.
Hatches for service or cleaning in the moveable pool floor or the moveable bulkhead shall be minimum
of 600 mm for a dry situation, or 800 mm for a wet situation.
The pool design shall ensure good water treatment throughout the pool regarding the moveable floor
and or the moveable bulkhead. The design of water circulation should take into account the need of
equal flow in different pool areas when only a part of the complete pool is to be fitted with a moveable
floor or bulkhead.
Specific hazards and risks related to accessible elements (cables, gears, pulley, lamps, ladders and
products placed into the pool) dedicated to the floor/bulkheads movements/positions shall be assessed
when existing and should be taken into account in the risk assessment.
NOTE It may be necessary to tighten the construction tolerances of the structure and finishes within the
basin in order to meet the tolerances set out within this European Standard.
6.2 Moveable pool floors
6.2.1 General
The gradient of a moveable floor positioned at a water depth ≤ 1 350 mm shall be ≤ 6,6 %.
NOTE It is necessary to pay special attention to the construction tolerances of the structure and/or finishes
within the basin in order to meet the specification of EN 13451-1 within this European Standard.
In presence of a moveable pool floor, the pool water treatment system should be specifically designed
considering possible changes in designation (e.g. a swimmers pool used as non-swimmers pool).
To check the correct water distribution of the complete installation a dye test shall be carried out in
accordance with EN 15288-1 and EN 15288-2 with the moveable floor in 2 positions:
— the lowest operating position; and
— 1/3 of the operating water depth measured from water surface.
Compliance with the dye test is achieved when colouring of the water in the pool tank above the
moveable floor is attained in accordance with the requirements of EN 15288-1 and EN 15288-2 after
the dye is seen to clearly flow through the moveable floor.
NOTE It is likely that the cooperation of the pool builder will be required to achieve a suitable system.
Moveable floors shall allow inspection, cleaning and maintenance of the area underneath the moveable
floor.
6.2.2 Structural integrity
The structural integrity of moveable floors shall be verified using the following independently assessed
criteria:
2
— a vertical uniformly distributed load of 600 N/m ;
2
— a concentrated vertical load of 2 000 N/m over a square area of 1 m2 at any point;
2
— a concentrated vertical load of 2 000 N/m over a square area of 2 m × 2 m focussed in front of the
means of exit and similar areas.
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6.2.3 Inadvertent movements
Abnormal movements of a moveable floor (e.g. caused by restoration of the power supply following an
interruption) shall be prevented.
The risks arising from small foreseeable movements during use and maintenance in water shall be
prevented.
6.2.4 Prevention of entrapment
Gaps on the surface of a moveable floor shall be ≤ 8 mm. The gap between the rigid part of a moveable
floor and the pool shall be ≤ 50 mm. When the gap is greater than 8 mm a closure device shall be used to
reduce the gap to ≤ 8 mm wide.
A closure devic
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