EN 60811-5-1:1999
(Main)Insulating and sheathing materials of electric and optical cables - Common test methods - Part 5-1: Methods specific to filling compounds - Drop point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23 °C - D.C. resistivity at 23 °C and 100 °C
Insulating and sheathing materials of electric and optical cables - Common test methods - Part 5-1: Methods specific to filling compounds - Drop point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23 °C - D.C. resistivity at 23 °C and 100 °C
Specifies the test methods for filling compounds of electric cables used with telecommunication equipment. Gives the methods for drop-point, separation of oil, lower temperature brittleness, total acid number, absence of corrosive components, permittivity at 23 °C, d.c. resistivity at 23°C and 100°C.
Isolier- und Mantelwerkstoffe für Kabel und isolierte Leitungen - Allgemeine Prüfverfahren - Teil 5-1: Besondere Prüfverfahren für Füllmassen - Tropfpunkt - Ölabscheidung - Kälterissbeständigkeit - Gesamtsäurezahl - Abwesenheit korrosiver Bestandteile - Dielektrizitätskonstante bei 23 °C - Gleichstromwiderstand bei 23 °C und 100 °C
Matériaux d'isolation et de gainage des câbles électriques et des câbles optiques - Méthodes d'essais communes - Partie 5-1: Méthodes spécifiques pour les matières de remplissage - Point de goutte - Séparation d'huile - Fragilité à basse température - Indice d'acide total - Absence de composés corrosifs - Permittivité à 23 °C - Résistivité en courant continu à 23° C et 100° C
Précise les méthodes d'essais à employer pour les matières de remplissage des câbles électriques utilisés avec les équipements de télécommunications. Donne les méthodes pour le point de goutte, la séparation d'huile, la fragilité à basse température, l'indice d'acide total, l'absence de composants corrosifs, la permittivité à 23°C, la résistivité en courant continu à 23°C et 100°C.
Materiali za izoliranje in oplaščenje električnih in optičnih kablov - Splošne preskusne metode - 5-1. del: Posebne metode za polnilne mase - Točka kapljanja - Ločevanje olja - Krhkost pri nizki temperaturi - Celotna kislost - Odsotnost korozivnih sestavin - Permitivnost pri 23 °C - Rezistivnost pri 23 °C in 100 °C
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2000
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SIST HD 505.5.1 S1:1998
0DWHULDOL]DL]ROLUDQMHLQRSODãþHQMHHOHNWULþQLKLQRSWLþQLKNDEORY6SORãQH
SUHVNXVQHPHWRGHGHO 3RVHEQHPHWRGH]DSROQLOQHPDVH7RþNDNDSOMDQMD
/RþHYDQMHROMD.UKNRVWSULQL]NLWHPSHUDWXUL&HORWQDNLVORVW2GVRWQRVW
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Insulating and sheathing materials of electric and optical cables - Common test methods
- Part 5-1: Methods specific to filling compounds - Drop point - Separation of oil - Lower
temperature brittleness - Total acid number - Absence of corrosive components -
Permittivity at 23 °C - D.C. resistivity at 23 °C and 100 °C
Isolier- und Mantelwerkstoffe für Kabel und isolierte Leitungen - Allgemeine
Prüfverfahren -- Teil 5-1: Besondere Prüfverfahren für Füllmassen - Tropfpunkt -
Ölabscheidung - Kälterissbeständigkeit - Gesamtsäurezahl - Abwesenheit korrosiver
Bestandteile - Dielektrizitätskonstante bei 23 °C - Gleichstromwiderstand bei 23 °C und
100 °C
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
Matériaux d'isolation et de gainage des câbles électriques et des câbles optiques -
Méthodes d'essais communes -- Partie 5-1: Méthodes spécifiques pour les matières de
remplissage - Point de goutte - Séparation d'huile - Fragilité à basse température - Indice
d'acide total - Absence de composés corrosifs - Permittivité à 23 °C - Résistivité en
courant continu à 23° C et 100° C
Ta slovenski standard je istoveten z: EN 60811-5-1:1999
ICS:
29.035.01 Izolacijski materiali na Insulating materials in
splošno general
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME CEI
INTERNATIONALE IEC
811-5-1
INTERNATIONAL
Première édition
First edition
STANDARD 1990-02
Méthodes d'essais communes pour
les matériaux d'isolation
et de gainage des câbles électriques
Cinquième partie:
Méthodes spécifiques pour les matières
de remplissage
Section un — Point de goutte — Séparation
d'huile — Fragilité à basse température —
Indice d'acide total — Absence de composés
corrosifs — Permittivité à 23 °C — Résistivité
en courant continu à 23 °C et 100 °C
Common test methods for insulating and
sheathing materials of electric cables
Part 5:
Methods specific to filling compounds
Section One — Drop-point — Separation of oil —
Lower temperature brittleness — Total acid
number - Absence of corrosive components —
Permittivity at 23 °C — D.C. resistivity at 23 °C
and 100 °C
© CEI 1990 réservés –
Droits de reproduction Copyright – all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, anyforciorbyanymeans, electronic or mechanical, indudl g
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing
microfilms, sans l'accord écrit de l'éditeur. from the publisher.
Bureau Central de la Commission Electrotechnique Interna ti
onale 3, rue deVarembé Genève, Suisse
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical
Commission
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MewAytapoaeae 3neu rpoTextartectan
HOWICCNN
Pourprd6 wrrratafogueen vigueur
•
• For prise, see curent catalogue
811-5-1 © IEC - 3 -
CONTENTS
Page
FOREWORD 5
PREFACE 5
Clause
1. Scope 7
2. Test values 7
3. Applicability 7
4. Drop-point 7
5. Separation of oil
6. Low temperature brittleness
7. Total acid number
8. Absence of corrosive components
9. Permittivity at 23 °C 21
10. D. C. resistivity at 23 °C and 100 °C
APPENDIX A - Specification for p-naphtholbenzein 25
FIGURES 27
811-5-1 (31 IEC - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMON TEST METHODS FOR INSULATING AND SHEATHING MATERIALS
OF ELECTRIC CABLES
Part 5: Methods specific to filling compounds
Section One - Drop-point - Separation of oil -
Lower temperature brittleness - Total acid number -
Absence of corrosive components - Permittivity at 23 °C -
D.C. resistivity at 23 °C and 100 °C
FOREWORD
1) The formal decisions or agreements of the IEC on technical matters,
prepared by Technical Committees on which all the National Committees
having a special interest therein are represented, express, as nearly
as possible, an international consensus of opinion on the subjects
dealt with.
2) They have the form of recommendations for international use and they
are accepted by the National Committees in that sense.
3) In order to promote international unification, the IEC expresses the
wish that all National Committees should adopt the text of the IEC
recommendation for their national rules in so far as national con-
ditions will permit. Any divergence- between the IEC recommendation and
the corresponding national rules should, as far as possible, be clearly
indicated in the latter.
PREFACE
This standard has been prepared by IEC Technical Committee No. 46:
Cables, wires, waveguides, R.F. connectors and accessories for
communication and signalling.
(The 811 publication series has been taken over by Technical Committee
No. 20: Electric cables.)
The text of this standard is based upon the following documents:
Six Months' Rule Report on Voting
46(CO)28 46(CO)31
Full information on the voting for the approval of this standard can be
found in the Voting Report indicated in the above table.
The following IEC publication is quoted in this standard:
Publication No. 247 (1978): Measurement of relative permittivity,
dielectric dissipation factor and d.c.
resistivity of insulating liquids.
811-5-1 © IEC - 7 -
TEST METHODS FOR INSULATING AND SHEATHING MATERIALS
COMMON
OF ELECTRIC CABLES
Part 5: Methods specific to filling compounds
Section One - Drop-point - Separation of oil -
Lower temperature brittleness - Total acid number -
°C -
Absence of corrosive components - Permittivity at 23
D.C. resistivity at 23 °C and 100 °C
1. Scope
This standard specifies the test methods for filling compounds of
electric cables used with telecommunication equipment.
This Section One of Part 5 gives the methods for drop-point, separ-
ation of oil, lower temperature brittleness, total acid number, absence
of corrosive components, permittivity at 23 °C, d.c. resistivity at
23 °C. and 100 °C.
2. Test values
Any test requirements which are given in this standard may be
modified by the relevant cable standard to suit the needs of a parti-
cular type of cable.
3. Applicability
Conditioning values and testing parameters are specified for the most
common types of insulating and sheathing compounds and of cables,
wires and cords.
4. Drop-point
Note.- These tests are intended for classification purposes only.
4.1 General
drop-point test may be used as an indication of the maximum
The
temperature to which a filling compound can be exposed without com-
plete liquefaction or excessive oil separation.
4.2 Method A (reference method)
4.2.1 Apparatus
A chromium plated brass cup conforming to the dimensions shown in
figure 1.
811-5-1 © !EC - 9 -
A heat-resistant glass test tube conforming to the dimensions shown
in figure 2 with three indentations to support the cup.
Thermometers with a range -5 °C to 300 °C (76 mm immersion)
marked in degrees Celsius with a scale accuracy of 1 °C. The bulb
lengths shall be 10 mm to 15 mm, and the bulb diameters shall be 5 mm
to 6 mm.
An oil bath consisting of a 400 ml beaker and suitable oil, a ring
stand and ring for the support of the oil bath, clamps for the thermo-
meters, two corks as shown in figure 2, a polished metal rod 1.2 mm
to 1.6 mm in diameter and 150 mm in length, and a .suitable means for
heating and stirring the oil bath.
4.2.2 Test procedure
and
Place the corks on one of the thermometers as shown in figure 2
adjust the position of the upper cork so that the tip of the thermo-
meter bulb is about 3 mm above the bottom of the cup when the appar-
atus is assembled for test. Suspend a second thermometer in the oil
bath so that its bulb is at approximately the same level as the bulb of
the thermometer in the test tube.
Fill the cup by presenting its larger opening into the filling
compound until the cup is filled, taking care to avoid working the
filling compound as far as possible. Cut away excess compound. The
cup shall be held in a vertical position with its smaller opening at the
bottom while it is gently pressed down over the metal rod until the rod
protrudes about 25 mm above the larger opening. Press the rod
against the cup in such a manner that the rod makes contact with both
the upper and lower peripheries of the cup. Maintain this contact while
rotating the cup around its axis and simultaneously moving the cup
down the rod until the cup passes over the lower end of the rod. This
spiral-like motion will cause the compound to adhere along the rod
leaving a conical void of compound in the cup and a compound coating
having reproducible geometry on the inside of the cup.
Place the cup and the thermometer in the test tube and suspend the
test tube in the oil bath with the oil level within 6 mm of the rim. If
the cork holding the thermometer in the test tube has been properly
chosen, the 76 mm immersion mark on the thermometer will coincide
with the lower edge of the cork. The assembly should be immersed to
this point.
Stir the oil bath and heat at a rate of 4 K/min to 7 K/min until the
bath reaches a temperature approximately 17 °C below the expected
drop-point of the compound. Then reduce the rate of heating so that
2 °C or less of the
the temperature in the test tube will be within
temperature in the oil bath before the oil bath temperature increases
an additional 2.5 K.
811-5-1 © IEC - 11 -
Continue heating at a rate such that the difference between the
temperature in the test tube and in the oil bath is maintained between
1 °C and 2 °C. This condition is established when the oil bath is
heated at a rate of about 1 K/min to 1.5 K/min. As the temperature
increases, material will gradually protrude through the orifice of the
cup. When the first drop of material falls, note the temperature on the
two thermometers.
4.2.3 Expression of results
Record the average of the two thermometers as the drop-point of the
filling compound.
4.3
Method B
4.3.1
Apparatus
A chromium plated brass cup conforming to the dimensions shown in
figure 3. The cup may be made from another suitable metal which is
not affected by the compound being tested. The top of the cup and
the bottom of the tube forming the orifice are smooth, parallel to each
other, and at right angles to the axis of the cup. The wide part of
the cup has an approximately hemispherical lower portion and an
internal depth such that when a steel ball 7.0 mm in diameter is placed
in the cup, the top of the ball is 12.2 ± 0.15 mm above the bottom of
the tube forming the orifice. The bottom edge of the orifice should
have neither chamfer nor radius.
A cylindrical metal sleeve, attached to the thermometer, and a metal
case which screws to the sleeve, conforming to the dimensions shown
in figures 4 and 5. The metal sleeve is fixed to the thermometer so
that, when the metal case is screwed on to the sleeve, the bottom of
the thermometer bulb is 8.0 ± 0.1 mm below the rim stop and the
thermometer stém is coaxial with the sleeve and case. The thermometer
is fixed to the sleeve with cement that is suitable for the temperature
range of the thermometer.
Thermometers with a range of 20 °C to 120 °C (100 mm immersion)
marked in degrees Celsius with a scale accuracy of 1 °C. The bulb
length shall be 6 mm maximum with bulb diameter between 3.35 mm
and 3.65 mm.
A heat resistant, glass test tube, 110 ± 2 mm long and with a
25 ± 1 mm internal diameter.
A beaker large enough to allow the test tube to be immersed
vertically to two-thirds of its length in the liquid heating medium and
with the bottom of the tube being about 25 mm above the bottom of the
beaker.
A stirrer to ensure uniformity of temperature throughout the bath.
A stand to hold the test tube and the bath thermometer and to
support the beaker above the heat source.
A gas burner capable of heating the liquid bath at the specified
rate.
Note.- Water is recommended as the heating medium for drop-points
below 80 °C, and glycerol or white oil for higher drop-point
materials.
811-5-1 © IEC - 13 -
Test procedure
4.3.2
By means of a spatula, fill the cup with the compound and cut away
excess material. Take precautions to exclude air bubbles, but do not
melt the compound.
Push the cup, without lateral movement, into the metal case as far
as the stop and cut away excess material squeezed out of the bottom.
Take care that the orifices in the side of the metal case are not
blocked. Fit the thermometer, with the cup attached, centrally in the
test tube, through a bored cork having a side notch, so that the
bottom of the cup is 25 ± 1.0 mm above the bottom of the test tube.
Then, fix the test tube vertically in the beaker containing the liquid
heating medium, so that two-thirds of its length are immersed and the
bottom is about 25 mm above the bottom of the beaker, as shown in
figure 6.
Heat the liquid bath, keeping it stirred at such a rate that the
drop-point thermometer shows a rise in temperature of 1 K/min for
20 °C below the drop-point of the sample. Record the temperature at
which the first drop, whatever its composition, falls from the cup or
at which the continuous stream of material, if formed, reaches the
bottom of the test tube.
Expression of results
4.3.3
Record the temperature of the drop-point thermometer to the nearest
1.0 °C as the drop-point of the filling compound.
5. Separation of oil
5.1 General
This test is used to examine the amount of oil se
...
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