Bsi bs en 12629 5 3 2003 + a1 2010

BRITISH STANDARD

Machines for the
manufacture of
constructional
products from concrete
and calcium-silicate —
Safety —
Part 5-3: Pipe prestressing machines

ICS 91.220

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BS EN
12629-5-3:2003
+A1:2010


BS EN 12629-5-3:2003+A1:2010

National foreword
This British Standard is the UK implementation of
EN 12629-5-3:2003+A1:2010. It supersedes BS EN 12629-5-3:2003
which is withdrawn.
The start and finish of text introduced or altered by amendment is
indicated in the text by tags. Tags indicating changes to CEN text
carry the number of the CEN amendment. For example, text altered by
CEN amendment A1 is indicated by !".
The UK participation in its preparation was entrusted to Technical
Committee MCE/3/7, Machines for precast concrete and calcium silicate

products — Safety.
A list of organizations represented on this committee can be obtained
on request to its secretary.
This publication does not purport to include all the necessary
provisions of a contract. Users are responsible for its correct
application.
Compliance with a British Standard cannot confer immunity
from legal obligations.

This British Standard was
published under the authority
of the Standards Policy and
Strategy Committee on
2 April 2004

© BSI 2010

ISBN 978 0 580 63127 6

Amendments/corrigenda issued since publication
Date

Comments

31 October 2010

Implementation of CEN amendment A1:2010


EUROPEAN STANDARD

EN 12629-5-3:2003+A1

NORME EUROPÉENNE
EUROPÄISCHE NORM

September 2010

ICS 91.220

Supersedes EN 12629-5-3:2003

English Version

Machines for the manufacture of constructional products from
concrete and calcium-silicate - Safety - Part 5-3: Pipe
prestressing machines
Machines pour la fabrication de produits de construction en
béton et silico-calcaire - Sécurité - Partie 5-3: Machines
pour la précontrainte des tuyaux

Maschinen für die Herstellung von Bauprodukten aus Beton
und Kalksandsteinmassen - Sicherheit - Teil 5-3:
Maschinen zum Vorspannen von Rohren

This European Standard was approved by CEN on 3 November 2003 and includes Amendment 1 approved by CEN on 5 August 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2010 CEN

All rights of exploitation in any form and by any means reserved
worldwide for CEN national Members.

Ref. No. EN 12629-5-3:2003+A1:2010: E


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Contents
page
Foreword ...................................................................................................................................................................... 3
Introduction ................................................................................................................................................................. 4
1

Scope .............................................................................................................................................................. 5

2

Normative references .................................................................................................................................... 5

3

Terms and definitions ................................................................................................................................... 5

4

List of significant hazards ............................................................................................................................ 6

5
5.1
5.2
5.3

!Safety requirements and/or protective measures"
" ........................................................................... 8
General ............................................................................................................................................................ 8
Prestressing equipment ................................................................................................................................ 9
Radial prestressing machines ...................................................................................................................... 9

6

!Verification of safety requirements and/or protective measures"
" ................................................ 10

7

Information for use ...................................................................................................................................... 10

8

Marking ......................................................................................................................................................... 10

Annex A (informative) Definitions of terms ............................................................................................................ 11
Annex B (informative) Hazard zones ....................................................................................................................... 13
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC"
" ........................................................................................... 15

2


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Foreword
This document (EN 12629-5-3:2003+A1:2010) has been prepared by Technical Committee CEN/TC 151
“Construction equipment and building material machines - Safety”, 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 March 2011, and conflicting national standards shall be withdrawn at the latest by
March 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document includes Amendment 1, approved by CEN on 2010-08-05.
This document supersedes EN 12629-5-3:2003.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".

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(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
!The series "Machines for the manufacture of constructional products from concrete and calcium – silicate –
Safety" consists of following parts:
Part 1: Common requirements
Part 2: Block making machines
Part 3: Slide and turntable machines
Part 4: Concrete rooftile making machines
Part 5.1: Concrete pipe machines manufacturing in the vertical axis
Part 5.2: Concrete pipe machines manufacturing in the horizontal axis
Part 5.3: Pipe prestressing machines
Part 5.4: Concrete pipe coating machines
Part 6: Stationary and mobile equipment for the manufacture of precast reinforced products
Part 7: Stationary and mobile equipment for the benched manufacture of prestressed products
Part 8: Machines and equipment for the manufacture of constructional products from calcium silicate (and
concrete)."
!deleted text"
According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

3


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Introduction
!This European Standard is a Type C-standard as stated in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situation and events are covered are
indicated in the scope of this document.
When provisions of this type C document are different from those, which are stated in type A or B documents, the
provisions of this type C document take precedence over the provisions of the other documents, for machines that
have been designed and built according to the provisions of this type C document.
This document specifies the additional requirements to and/or the deviations from EN 12629-1:2000+A1:2010
specific for the pipe prestressing machines as defined in Clause 3.
With the aim of clarifying the intentions of the document it should be noticed that the following assumptions were
made when producing it:


specific conditions of use or environmental conditions out of the scope of the document shall be the subject of
negotiations between the manufacturer and the user/owner,



the equipment will only be used by competent and designated persons,



the place of use/installation is adequately lit,



all operations are carried out by specially trained operators."

4

BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

1

Scope
1.1 !This part of EN 12629, taken together with EN 12629-1:2000+A1:2010, applies to pipe prestressing
machines as defined in Clause 3.

EN 12629-1:2000+A1:2010 specifies general requirements applicable to machines for the manufacture of
constructional products from concrete and calcium–silicate.
This document specifies the additional requirements to and/or the deviations from EN 12629-1:2000+A1:2010
specific to the machines it covers."
1.2 !This European Standard deals with all significant hazards pertinent to these machines, when they are
used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see
Clause 4). This European Standard specifies the appropriate technical measures to eliminate or reduce risks
arising from the significant hazards."
!deleted text"
This standard establishes safety requirements and/or methods of protection which applies to these machines.
1.3 This European standard applies to the concrete pipe prestressing machines which may form an integral part
of a pipe making process plant.
1.4 !This document is not applicable to pipe prestressing machines, which are manufactured before the date of
publication of this document by CEN."

2

Normative references

!The following referenced documents are indispensable for the application 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 1050:1996, Safety of machinery — Principle for risk assessment
EN 12629-1:2000+A1:2010, Machines for the manufacture of constructional products from concrete and calciumsilicate — Safety — Part 1: Common requirements
EN ISO 7731:2008, Ergonomics — Danger signals for public and work areas — Auditory danger signals
(ISO 7731:2003)
EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology, methodology (ISO 12100-1:2003)
EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical
principles (ISO 12100-2:2003)"

3

Terms and definitions

!For the purposes of this document, the terms
EN 12629-1:2000+A1:2010 and the following apply."

and

definitions

given

in

EN ISO 12100-1:2003,

3.1
longitudinal prestressing machine

machine used to prestress longitudinal steel wires inside the mould before casting the pipe
5


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

3.2
pipe radial prestressing machine
machine used for radial prestressing of concrete pipes by winding with pretensioned high tensile steel wire.
It incorporates a drive for the pipe rotation, a wire tensioning device, travelling wire distribution equipment and a
wire delivery system.
NOTE

4

This machine works, as post-tensioning, on a hardened pipe longitudinally prestressed or not.

List of significant hazards

This clause contains all hazards, as far as they are dealt with in this European Standard, identified by risk
assessment significant for this type of machinery and which require action to eliminate or reduce risk.
!In accordance with Clause 4 of EN 12629-1:2000+A1:2010 the hazard zones described in the following tables
are illustrated in Annex B."
Table 1 — Longitudinal prestressing machines - List of hazards and hazardous situations
List of hazards

6

Hazardous situations

HAZARDS
ZONES
in Figure B.1

1.2 Shearing hazards

Between the mould and the wheels of the machine

1

17 Hazards from ejection –
prestressing wire breaking

Prestressing wire breaking due to a defective wire or
an excessive wire tensioning

2


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Table 2 — Radial prestressing machines - List of hazards and hazardous situations
List of hazards as per annex
A of EN 1050:1996

List of hazards and hazardous situations

HAZARD ZONES

(See Informative annex B,
Fig. B.2)

1 Mechanical hazards
1.1 Crushing hazards

1.2 Shearing hazards

1.4 Entanglement hazards

1.5 Drawing in - or trapping
hazards

−

Between the wire distributor carriage and the
contrasting wheel support

−

Between pipe and support wheels

−

Between pipe and contrasting wheels

−

Between the mould and the wheels of the machine

−

Between the steel wire and wire distributing pulley

−

Between the steel wire and the pipe to be wound

−

Between the steel wire and transmission pulley

−

Between the steel wire and the wire tension checking
pulley

−

Between the steel wire and braking pulley

−

Between carriage chain and crown wheels

−

On the wire distributing pulley

−

On pipe rotation transmission device

−

On the braking pulley transmission

−

On the wire tension checking pulley

−

On the electric transmission of the pipe rotation motor

−

On the electric transmission of distributing carriage
translation motor

−

On the wire unwinding coil

−

In the wire distributing carriage

−

Between the pipe and the support wheels

−

Between the pipe and the contrasting wheels

−

In the transmission of braking pulley assembly

1, 2

1, 2, 3, 4, 6

1, 2, 3,
4, 5, 6, 7

1, 2, 3,
4, 5, 6, 7

1, 2, 3,
4, 5, 6, 7
1, 2, 3,
4, 5, 6, 7

7


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

List of hazards as per annex
A of EN 1050:1996

1.8 Friction or abrasion hazards

17 Hazards from ejection –
prestressing wire breaking

5

List of hazards and hazardous situations

−

In the wire tension checking pulley

−

Between the pinion and the wire distributing carriage
translation chain

−

In the wire unwinding coil

−

In contact with wire distributing pulley

−

In contact with the pipe to be wound while rotating

−

In contact with the support wheels of pipe in rotation

−

In contact with the transmission belts of the braking
assembly

−

In contact with braking pulley

−

In contact with wire tension checking pulley

−

In contact with electric transmission of pipe rotation
motor

−

In contact with the electric transmission of carriage
translation motor

−

In contact with the wire unwinding coil

−

Prestressing wire breaking due to a defective wire or
an excessive wire tensioning

HAZARD ZONES
(See Informative annex B,
Fig. B.2)

1, 2, 3,
4, 5, 6, 7

8

!Safety requirements and/or protective measures"
"
5.1 General

!Machinery shall comply with the safety requirements and/or protective measures of this clause and, unless
otherwise specified in this standard, with the relevant requirements of EN 12629-1:2000+A1:2010. In addition, the
machine shall be designed according to the principles of EN ISO 12100 for hazards relevant but not significant,
which are not dealt with by this document.
NOTE
For hazards which are to be reduced by the application of an A or B-level standard such as EN ISO 13850,
EN ISO 13857, EN 60204-1, and for hydraulic, pneumatic or other machinery dealt with in standards for common uses, the

manufacturer should carry out a risk assessment to establish the requirements of the A or B-level or other standard which are to
be applied. This specific risk assessment should be part of the general risk assessment of the machine.

Where it is known that the installation site already contains elements that can be considered as risk reduction
means, the design of the machine may take these elements into consideration (see also Clause 7)."

8


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

5.2 Prestressing equipment
5.2.1 In accordance with !Clause 5 of EN 12629-1:2000+A1:2010", the hazard zones marked 1 and 2 at
annex B of this standard, are to be guarded as described in the following table:
Table 3 — Safety requirements for prestressing equipment
Hazards Zones

5.2.2

Hazards

Reference
Clause 4

Requirements and measures
See !Clause 5 of EN 126291:2000+A1:2010"
"
5.2

1

Shearing

1.2

2

Hazards from ejection – prestressing
wire breaking

17

Prestressing wire breaking

A screen shall be provided to avoid contact with possible ejected pieces of steel wire.

5.3 Radial prestressing machines
5.3.1 In accordance with !Clause 5 of EN 12629-1:2000+A1:2010", the hazard zones marked 1 to 8 at
annex B of this standard, are to be guarded as described in the following table.
Table 4 — Safety requirements for radial prestressing machines

Hazards Zones

1

2

3

4

5
6

Reference Clause 4
(Table 1)

Requirements and
measures. See
!Clause 5 of
EN 126291:2000+A1:2010"
"

1.1
1.2
1.4
1.5
1.8
1.1
1.2
1.4
1.5
1.8
1.2
1.4
1.5
1.8
1.2
1.4

1.5
1.8
1.4
1.5
1.8
1.2
1.4
1.5

5.2

Hazards

Crushing
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Crushing
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping

Friction or abrasion
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping

5.2

5.1

5.2

5.1
5.1

9


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Reference Clause 4
(Table 1)
Hazards Zones

7
8

5.3.2

Hazards

Friction or abrasion
Entanglement
Drawing-in or trapping
Friction or abrasion
Hazards from ejection – prestressing wire
breaking

Requirements and
measures. See
!Clause 5 of
EN 126291:2000+A1:2010"
"

1.8
1.4
1.5
1.8
17

5.2
5.2

Prestressing wire breaking

The whole surrounding machine area shall be protected by an enclosure to avoid the coming out of broken wire.
The access to the danger zone shall be allowed only when the steel wire is not under tension.

A warning device connected with the braking system that release a clearly recognizable signal before the wire
tensioning, so that people have enough time to live the danger zone shall be provided !(See EN ISO 7731)"...

6

!Verification of safety requirements and/or protective measures"
"

!For verification with safety requirements and/or protective measures, see EN 12629-1:2000+A1:2010."

7

Information for use

See !EN 12629-1:2000+A1:2010".
For prestressing equipement, if a removable screen is provided against ejection of pieces of steel wire, it shall be
rendered effective during prestressing operation.

8

Marking

See !EN 12629-1:2000+A1:2010".

10


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Annex A
(informative)
Definitions of terms

Key
1)
2)
3)

Mould
Prestressing assembly
Motorized rolling equipment
Figure A.1 — Longitudinal prestressing machine

11


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Key
1)
2)
3)
4)

Rotation group
Braking system
Distributor carriage
Winding group

Figure A.2 — Pipe radial prestressing machine

12


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Annex B
(informative)
Hazard zones

Reference Clause 4
(Table 1)
Hazards Zones

Hazards

1
2

Shearing
Hazards from ejection – prestressing wire
breaking

1.2
17

Requirements and
measures. See

!Clause 5 of
EN 126291:2000+A1:2010"
"
5.2

Figure B.1 — Prestressing equipment
13


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Hazards
Zones

1

2

3

4

5

6

7
8

Figure B.2 — Pipe radial prestressing machine
14

Hazards

Crushing
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Crushing
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion
Entanglement
Drawing-in or trapping
Friction or abrasion
Shearing
Entanglement
Drawing-in or trapping
Friction or abrasion

Entanglement
Drawing-in or trapping
Friction or abrasion
Hazards from ejection –
prestressing wire
breaking

Reference
Clause 4
(Table 1)

1.1
1.2
1.4
1.5
1.8
1.1
1.2
1.4
1.5
1.8
1.2
1.4
1.5
1.8
1.2
1.4
1.5
1.8
1.4

1.5
1.8
1.2
1.4
1.5
1.8
1.4
1.5
1.8
17

Requirements
and
measures.
See
!Clause 5
of EN 126291:2000+A1:20
10"
"

5.2

5.2

5.1

5.2

5.1

5.1

5.2
5.2


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

Annex ZA
(informative)
!Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association to provide a means of conforming to Essential Requirements of the New
Approach Directive 2006/42/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the normative clauses of this
standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant
Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within the
scope of this standard."

15


BS EN 12629-5-3:2003+A1:2010
EN 12629-5-3:2003+A1:2010 (E)

!Deleted text"

16


This page deliberately set blank


BS EN
12629-5-3:2003
+A1:2010

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