SIST EN 60745-2-5:2003/OprA2:2004

Hand-held motor-operated electric tools - Safety -- Part 2-5: Particular requirements for circular saws

Work incorporated in IEC 60745-2-5:200X (61F/643/FDIS) / prEN 60745-2-5:200X (pr=16378) * Standstill maintained

Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit -- Teil 2-5: Besondere Anforderungen für Kreissägen

Outils électroportatifs à moteur - Sécurité -- Partie 2-5: Règles particulières pour les scies circulaires

Varnost električnih ročnih orodij - 2-5. del: Posebne zahteve za krožne žage

General Information

• Status: Not Published
• Publication Date: 31-Mar-2004
• ICS: 25.080.60 - Sawing machines
• ICS: 25.140.20 - Electric tools
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 08-Jan-2009
• Due Date: 13-Jan-2009
• Completion Date: 09-Jan-2009
• Directive: 98/37/EC - Machinery
• Ref Project: EN 60745-2-5:2003/prA2 - Hand-held motor-operated electric tools - Safety - Part 2-5: Particular requirements for circular saws

Relations

• Amends: SIST EN 60745-2-5:2003 - Hand-held motor-operated electric tools - Safety -- Part 2-5: Particular requirements for circular saws
• Effective Date: 21-Sep-2010

Overview

EN 60745-2-5:2003/prA2 - Hand-held motor-operated electric tools - Safety - Part 2-5: Particular requirements for circular saws (CLC) is a proposed amendment to the IEC/EN 60745 series that updates safety requirements specific to circular saws. The document (CDV/prA2 stage) focuses on guarding, accessibility, measurement procedures and test criteria for upper guards, viewing apertures, guide plates and plunge-type saws. Note: this draft amendment was issued for committee vote and is subject to change.

Key Topics and Technical Requirements

• Scope and status: Amendment to Part 2-5 of the IEC/EN 60745 series addressing circular saw safety; intended to be integrated into IEC 60745-2-5.
• Upper guard requirements (Clause 19.101):
  • The blade above the guide plate must be guarded by an upper guard.
  • Apertures in the upper guard must prevent access to the cutting edge zone: a specified test probe (“probe a”) inserted at any angle must not reach the blade cutting edge.
• Viewing aperture controls:
  • A viewing aperture on the motor side is permitted but must either meet probe-resistance requirements or be limited by proximity and height restrictions.
  • Proximity restriction: A defined measuring point on the auxiliary handle or motor casing must be at least 120 mm from the cutting edge zone.
  • Height restriction: Maximum aperture height is determined by a formula using U (distance from cutting edge zone to outer surface of upper guard) and S (distance from blade plane to switch-handle centre plane); compliance is measured with the guide plate at maximum depth and 90°.
• Side coverage and spacing:
  • The upper guard on the side opposite the motor need not fully cover the blade but must project to cover at least the smallest recommended blade-cutting edge zone and resist probe access to tooth tips.
• Guide plate distance limits (inclinable guide plates):
  • Distance X between guide plate and lateral side edge of upper guard is limited to specific maxima:
    • <265 mm blade diameter: ≤ 38 mm
    • ≥265 mm: ≤ 45 mm
    • ≥265 mm with remote lower-guard operation (no retracting handle): ≤ 55 mm
• Accessibility checks:
  • Rigid test probe (“probe b”) tests ensure no contact with the blade for a 90° cut at any depth; tests include offsets of ±13 mm.
• Plunge-type saws:
  • Must have an upper guard into which the recommended blade automatically retracts when not in use; the guard must automatically lock closed when the guide plate is not in contact with work.

Applications and Users

• Manufacturers and product designers of hand-held circular saws for compliance-design and safety validation.
• Testing laboratories and certification bodies performing conformity testing against EN/IEC 60745 series criteria.
• Safety engineers, technical compliance teams, and regulators assessing guarding, blade accessibility and ergonomic measures.
• Useful for risk assessments, CE marking preparation, and development of product manuals and safety statements.

Related Standards

• IEC/EN 60745 series - general and particular requirements for hand-held motor-operated electric tools.
• EN 60745-1 (general requirements) - applicable as the parent standard for safety principles (refer to the IEC/EN series for full scope).

Keywords: EN 60745-2-5:2003/prA2, circular saw safety, upper guard, guide plate, test probe, plunge saw, hand-held motor-operated electric tools, CLC, IEC 60745.

Standards Content (Sample)

SLOVENSKI SIST EN 60745-2-
5:2003/OprA2:2004
STANDARD
april 2004
Varnost električnih ročnih orodij - 2-5. del: Posebne zahteve za krožne žage
Safety of hand-held motor-operated electric tools – Part 2-5: Particular requirements
for circular saws
ICS 25.140.20 Referenčna številka
SIST EN 60745-2-
5:2003/OprA2:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

61F/561/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJET DE COMITÉ POUR VOTE (CDV)

Project number IEC 60745-2-5-A2 Ed. 3.0
Numéro de projet
IEC/TC or SC: Date of circulation Closing date for voting (Voting mandatory
SC 61F
Date de diffusion for P-members)
CEI/CE ou SC:
Date de clôture du vote (Vote obligatoire
2004-01-23
pour les membres (P))
2004-06-25
Titre du CE/SC:    TC/SC Title: Safety of hand-held motor-operated
electric tools.
Secretary: Robert G. Stoll, USA
Secrétaire:
Also of interest to the following committees Supersedes document
Intéresse également les comités suivants Remplace le document
61F/545/CD and 61F/555A/CC
Functions concerned
Fonctions concernées
Safety EMC Environment Quality assurance
Sécurité
CEM Environnement Assurance qualité
CE DOCUMENT EST TOUJOURS À L'ÉTUDE ET SUSCEPTIBLE DE MODIFICATION. THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT
IL NE PEUT SERVIR DE RÉFÉRENCE. SHOULD NOT BE USED FOR REFERENCE PURPOSES.
LES RÉCIPIENDAIRES DU PRÉSENT DOCUMENT SONT INVITÉS À PRÉSENTER, RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR
AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES DROITS DE PROPRIÉTÉ COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
DONT ILS AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À FOURNIR UNE THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
DOCUMENTATION EXPLICATIVE.
Titre :    Title: IEC 60745-2-5-A2 Ed 3.0: Safety of hand-held
motor-operated electric tools – Part 2-5: Particular

requirements for circular saws.

Note d'introduction Introductory note

ATTENTION ATTENTION
CDV soumis en parallèle au vote (CEI) Parallel IEC CDV/CENELEC Enquiry
et à l’enquête (CENELEC)
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
National Committee positions. You may not copy or "mirror" the file or printed version of the document, or
any part of it, for any other purpose without permission in writing from IEC.

FORM CDV (IEC)
2002-05-14
60745-2-5 Amend 2/Ed 3.0/CDV © IEC
Add after clause 19.1:
19.3 This subclause is not applicable.

Replace the existing clause 19.101 by the following:
19.101 Guarding above the guide plate
19.101.1 The blade above the guide plate shall be guarded by the upper guard.
19.101.2 Apertures in the guarding system above the guide plate, unless otherwise specified
below, shall be designed such that the test probe ‘a’ of Figure 105, when inserted at any angle and
to the depth allowed by its stop, shall not be able to contact the cutting edge zone of any
recommended blade.
19.101.2.1 On the motor side of the upper guard, adjacent to the cutting edge zone at the front of
the blade an aperture may be provided for viewing the line of the cut. This viewing aperture shall
either meet the requirements of 19.101.2, as illustrated in Figure 106, or it shall be limited by
proximity and height restrictions.
ƒ Proximity restriction
The straight line distance from a defined measuring point on the auxiliary handle surface to the
cutting edge zone of any recommended blade shall be a minimum of 120 mm as shown in Figure
107. If there is no auxiliary handle provided, the distance shall be measured from the motor casing.
Compliance is checked by the following measurements, which shall be conducted with the guide
plate set to any depth of cut and 90°.
To establish the measuring point on the auxiliary handle or the motor casing, follow the procedure
outlined below.
a) Establish the closest (A) and the most distant (B) points on the auxiliary handle or motor casing
from the blade. For the motor casing, the closest (A) point to the blade is assumed to be in the
plane of the main handle farthest from the blade. Equidistant between points (A) and (B), but
not more than 45 mm away from point (A), draw the vertical intersecting line of the plane
parallel with the blade and the surface of the auxiliary handle or motor casing, as applicable.
b) Establish the closest (C) and the most distant (D) point from the plane of the guide plate on the
auxiliary handle o
...