IEC 60745-2-12:2003/AMD1:2008

IEC 60745-2-12
Edition 2.0 2008-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Hand-held motor-operated electric tools – Safety –
Part 2-12: Particular requirements for concrete vibrators

Outils électroportatifs à moteur – Sécurité –
Partie 2-12: Règles particulières pour les vibreurs à béton

IEC 60745-2-12 A1:2008
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IEC 60745-2-12
Edition 2.0 2008-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Hand-held motor-operated electric tools – Safety –
Part 2-12: Particular requirements for concrete vibrators

Outils électroportatifs à moteur – Sécurité –
Partie 2-12: Règles particulières pour les vibreurs à béton

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
F
CODE PRIX
ICS 25.140.20 ISBN 2-8318-9807-2

– 2 – 60745-2-12 Amend. 1 © IEC:2008
FOREWORD
This amendment has been prepared by subcommittee 61F: Safety of hand-held motor-
operated electric tools, of IEC technical committee 61: Safety of household and similar
electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
61F/737/FDIS 61F/757/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
With this amendment, this Part 2 is established on the basis of the fourth edition (2006) of
IEC 60745-1, Hand-held motor-operated electric tools – Safety – Part 1: General
requirements.
Main changes include editorial modifications to match with the fourth edition of IEC 60745-1
and clarifications in Annex K.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 Scope
Replace the existing text of Clause 1 by the following:
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to concrete vibrators.
3 Definitions
Change the title of Clause 3 to read:
3 Terms and definitions
Replace the existing text of 3.101 by the following:

60745-2-12 Amend. 1 © IEC:2008 – 3 –
3.101
concrete vibrator
tool intended for compacting concrete. The active part (vibrator bottle) of the vibrator performs
low-amplitude vibrations and is immersed into the mass of concrete to be vibrated.
Concrete vibrators may be of one of the following designs:
a) the motor and the vibrating mechanism are inside the vibrator bottle to which the part
containing the mains switch or a power converter and switch handle assembly is
connected by means of a long flexible hose containing the interconnecting cable. The long
flexible hose may be used as the handle (see Figure 101);
b) only the vibrator mechanism is inside the vibrator bottle to which a separate portable unit,
comprising the motor, the handle and the mains switch, is connected by means of a long
flexible hose containing a flexible shaft (see Figure 102)
14 Moisture resistance
Replace the existing text of 14.1 by the following:
14.1 Replacement of the first paragraph:
For design a) as defined in 3.101, the enclosure of all parts and the cable entry shall be IPX7.
During the relevant test of this subclause, the part containing the switch or the power
converter and switch handle assembly is placed in the normal position of use, the hose, if
any, being attached correctly to it.
For design b) as defined in 3.101, the motor unit shall be IPX4.
During the relevant test of this subclause, the motor unit is placed in the most unfavourable
position occurring during normal use.
The isolating transformer or the motor-generator shall be IPX4.
18 Abnormal operation
Replace the existing text of 18.12 by the following:
18.12 This subclause is not applicable.
Replace the last paragraph of 18.101 by the following:
After the concrete vibrator has been allowed to cool down to approximately room temperature,
it shall withstand an electric strength test as specified in 15.2. For concrete vibrators having
the motor in the bottle, the test voltage across basic insulation is, however, reduced to
1 000 V for tools other than those of class III.
20 Mechanical strength
Add the following new subclause:
20.5 This subclause is not applicable.
Replace the last paragraph of 20.101 by the following:

– 4 – 60745-2-12 Amend. 1 © IEC:2008
Moreover, the concrete vibrator shall withstand an electric strength test as specified in 15.2.
For concrete vibrators having the motor in the bottle, the test voltage across basic insulation
is, however, reduced to 1 000 V for tools other than those of class III.
21 Construction
Add the following new subclause:
21.32 This subclause is not applicable.
24 Supply connection and external flexible cords
Replace the existing text of 24.4 by the following:
24.4 Modification:
Instead of the first paragraph,
...