IEC 60332-3-10:2000/AMD1:2008

IEC 60332-3-10
Edition 1.0 2008-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
AMENDMENT 1
AMENDEMENT 1
Tests on electric and optical fibre cables under fire conditions –
Part 3-10: Test for vertical flame spread of vertically-mounted bunched wires or
cables – Apparatus
Essais des câbles électriques et des câbles à fibres optiques soumis au feu –
Partie 3-10: Essai de propagation verticale de la flamme des fils ou câbles
montés en nappes en position verticale – Appareillage

IEC 60332-3-10:2000/A1:2008
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IEC 60332-3-10
Edition 1.0 2008-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
AMENDMENT 1
AMENDEMENT 1
Tests on electric and optical fibre cables under fire conditions –
Part 3-10: Test for vertical flame spread of vertically-mounted bunched wires or
cables – Apparatus
Essais des câbles électriques et des câbles à fibres optiques soumis au feu –
Partie 3-10: Essai de propagation verticale de la flamme des fils ou câbles
montés en nappes en position verticale – Appareillage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
G
CODE PRIX
ICS 13.220.40; 29.020; 29.060.20 ISBN 978-2-88910-129-0
– 2 – 60332-3-10 Amend. 1 © IEC:2008

FOREWORD
This amendment has been prepared by IEC technical committee 20:Electric cables.

The text of this amendment is based on the following documents:

CDV Report on voting
20/933/CDV 20/982A/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
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• withdrawn,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.
_____________
Title
Replace the existing title by the following new title:
Tests on electric and optical fibre cables under fire conditions – Part 3-10: Test for vertical
flame spread of vertically-mounted bunched wires or cables – Apparatus
Introduction
Delete the final paragraph that begins “Additional categories, … ”
5.1 Test chamber
Replace the existing first line by the following:

“The test rig (see Figures 1a and 1b) shall comprise a vertical test chamber having a width of
….”
5.2 Air supply
After the first sentence add the following new text:
Air shall be introduced into the test chamber through a box fitted directly underneath, and of
approximately the same dimensions as, the air inlet aperture. Air shall be blown into the box
from a suitable fan through a straight section of duct which shall enter from the rear of the test
chamber and be parallel to the floor and along the burner centre line as shown in Figure 1b.
The duct shall be arranged to allow air into the box through an opening in the longest side.
NOTE 1 A grille may be placed over the air inlet aperture to facilitate accessing the test chamber but should
neither restrict the airflow nor modify its direction.

60332-3-10 Amend. 1 © IEC:2008 – 3 –

NOTE 2 A duct of constant cross-section of approximately 240 cm and minimum length of 60 cm is

recommended.
Delete the existing NOTE 1.
Renumber the existing NOTE 2 as NOTE 3.

6.1 Type
Replace the existing text of 6.1 that begins

“The flow rates at reference conditions … “

by the following new text:
The flow rates for the test shall be as follows:
Air (77,7 ± 4,8) l/min at reference conditions (1 bar and 20 °C) or (1 550 ± 140) mg/s
Propane (13,5 ± 0,5) l/min at reference conditions (1 bar and 20 °C) or ( 442 ± 10) mg/s

6 )
to provide a nominal (73,7 ± 1,68) × 10 J/h ((70 000 ± 1 600) Btu/h).
NOTE 3 A net heat of combustion of 46,4 kJ/g is used to calculate the propane flow rate.
6.2 Positioning
Replace, in the first paragraph, the second sentence by the following new text:
The point of application of the burner flame shall l
...