SIST EN 60371-3-8:1998

Insulating materials based on mica -- Part 3: Specifications for individual materials -- Sheet 8: Mica paper tapes for flame-resistant security cables

This specification covers material having a nominal thickness from 0,05 mm to 0,15 mm, supplied either in the form of sheets or rolls.

Isoliermaterialien aus Glimmer -- Teil 3: Bestimmungen für einzelne Materialien -- Blatt 8: Glimmerpapierbänder für flammwidrige Sicherheitskabel

Matériaux isolants à base de mica -- Partie 3: Spécifications pour matériaux particuliers -- Feuille 8: Ruban à base de papier de mica pour câbles de sécurité résistant à la flamme

Cette spécification couvre les matériaux ayant une épaisseur nominale de 0,05 à 0,15 mm. Il peut être fourni sous forme de feuilles ou de rouleaux.

Insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 8: Mica paper tapes for flame-resistant security cables (IEC 60371-3-8:1995 + corrigendum August 1995)

General Information

• Status: Published
• Publication Date: 31-May-1998
• ICS: 29.035.50 - Mica based materials
• Technical Committee: IZO - Insulating materials
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-1998
• Due Date: 01-Jun-1998
• Completion Date: 01-Jun-1998
• Ref Project: EN 60371-3-8:1995 - Insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 8: Mica paper tapes for flame-resistant security cables

Relations

• Refers: SIST EN 60371-2:1998 - Specification for insulating materials based on mica -- Part 2: Methods of test
• Effective Date: 03-Feb-2026
• Refers: SIST EN 60371-3-2:1998 - Specification for insulating materials based on mica -- Part 3: Specifications for individual materials -- Sheet 2: Mica paper
• Effective Date: 03-Feb-2026
• Amended By: SIST EN 60371-3-8:1998/A1:2007 - Insulating materials based on mica -- Part 3: Specifications for individual materials -- Sheet 8: Mica paper tapes for flame-resistant security cables
• Effective Date: 17-Sep-2007

Overview

SIST EN 60371-3-8:1998 standard, published by CLC, specifies the requirements for mica paper tapes used as electrical insulating materials in flame-resistant security cables. These insulating tapes, supplied in sheets or rolls with nominal thickness between 0.05 mm and 0.15 mm, are crucial in the construction of fire-resistant cables to ensure their integrity and operational continuity during fire incidents. The document defines the material composition, mechanical properties, and other quality requirements to assure consistent performance suited to high-reliability electrical installations.

Key Topics

• Mica-Based Insulation: The standard covers mica paper combined with glass fabric or plastic film and impregnated with suitable resin, providing superior flame-resistant and insulating properties.
• Material Configuration: Supplied as flexible tapes or sheets, the standard allows for varying product types, thicknesses, and widths to accommodate diverse cable designs.
• Composition & Tolerance: Detailed tables outline the acceptable mass per area of mica, glass, film, and resin, along with thickness tolerances for different tape types. Both muscovite and phlogopite mica variants are included.
• Physical Requirements:
  • Uniform tape surface, free from defects (e.g., bubbles or pinholes)
  • Consistent tensile strength in both warp and weft directions
  • Controlled width, thickness, and allowable joins per roll
• Performance & Reliability: While the standard itself does not stipulate a flame resistance test, it is recognized that these mica tapes, when used in properly designed cables, contribute to achieving the fire survival criteria as per IEC 331.

Applications

• Security & Safety Cables: Mica paper tapes specified in EN 60371-3-8 are integral to flame-resistant and fire survival cables used in safety-critical environments, such as:
  • Emergency circuits in public buildings
  • Transport infrastructure (subways, tunnels, airports)
  • Industrial facilities requiring maintained electrical supply during fire events
• Electrical Insulation for High-Reliability Systems: These tapes ensure electrical insulation remains intact under high temperatures, supporting continued operation of alarms, power supply, and emergency lighting.
• Construction & Energy Distribution: Used in cables installed where fire performance and safety compliance are mandatory.
• Customization for Project Needs: The standard allows selection of specific tape widths, lengths, and impregnation materials, enabling manufacturers and specifiers to tailor insulation solutions for unique project requirements.

Related Standards

• IEC 60371-1: Provides definitions and general requirements for mica-based insulating materials.
• IEC 60371-2: Details test methods for verifying the compliance and performance of insulating tapes and sheets.
• IEC 60371-3 Series: Covers additional specifications for various types of individual mica-based insulating materials.
• IEC 331: Specifies fire survival characteristics for cables, relevant for the intended application of these mica paper tapes in security cables.

Practical Value

Adhering to SIST EN 60371-3-8:1998 guarantees that flame-resistant mica paper tapes meet international quality and performance benchmarks, helping organizations and cable manufacturers:

• Achieve Regulatory Compliance: Meet fire safety standards for electrical installations as required by building codes and industrial regulations.
• Ensure Safety & Continuity: Support uninterrupted operation of critical infrastructure during fire emergencies through reliable, certified insulation.
• Streamline Procurement: Enable straightforward product selection and ordering based on clear, internationally recognized specification codes.
• Facilitate Quality Assurance: Standardized production and testing minimize risk of failure and enhance long-term reliability in demanding environments.

By specifying mica paper tapes for flame-resistant security cables in accordance with this standard, stakeholders in construction, manufacturing, and facility management secure enhanced safety and resilience in essential electrical systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-1998
Insulating materials based on mica - Part 3: Specifications for individual materials
- Sheet 8: Mica paper tapes for flame-resistant security cables (IEC 60371-3-8:1995
+ corrigendum August 1995)
Insulating materials based on mica -- Part 3: Specifications for individual materials --
Sheet 8: Mica paper tapes for flame-resistant security cables
Isoliermaterialien aus Glimmer -- Teil 3: Bestimmungen für einzelne Materialien -- Blatt
8: Glimmerpapierbänder für flammwidrige Sicherheitskabel
Matériaux isolants à base de mica -- Partie 3: Spécifications pour matériaux particuliers -
- Feuille 8: Ruban à base de papier de mica pour câbles de sécurité résistant à la
flamme
Ta slovenski standard je istoveten z: EN 60371-3-8:1995
ICS:
29.035.50 Materiali na podlagi sljude Mica based materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME CEI
INTERNATIONALE IEC
60371-3-8
INTERNATIONAL
Première édition
STAN DARD
First edition
1995-08
Matériaux isolants
à base de mica –
Troisième partie:
Spécifications pour matériaux particuliers –
Feuille 8: Ruban à base de papier de mica
pour câbles de sécurité résistant à la flamme
Insulating materials based on mica –
Part 3:
Specifications for individual materials –
Sheet 8: Mica paper tapes for
flamme-resistant
security cables
© IEC 1995 Droits de reproduction réservés — 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 any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
J
PRICE CODE
International Electrotechnical Commission
IEC Men1AyHapogHaR 311014Tp0TexHH4eCHaR F{oMHCCHA
Pour prix, voir catalogue en vigueur
• • For price, see current catalogue

IEC Publication 371-3-8
Publication 371-3-8 de la CEI
(First edition - 1995)
(Première édition - 1995)
Matériaux isolants à base de mica - Insulating materials based on mica -
Part 3: Specifications for individual materials -
Partie 3: Spécifications pour matériaux particuliers -
Feuille 8: Ruban à base de papier de mica, Sheet 8: Mica paper tapes for flame-resistant
security cables
pour câbles de sécurité résistant
à la flamme
C O R R I G E N D U M 1*
Page 9
Page 8
After the fifth line, before the note, add the
Après la cinquième ligne, avant la note,
following text:
ajouter le texte suivant:
The descriptive code quoted in table 2, i.e.
Le code de description indiqué dans le
G23/P60/R16 for type 8.2.01, table 2, is
tableau 2, par exemple G23/P60/R16 pour
derived from:
le type 8.2.01 du tableau 2, est issu:
- glass content (G) 23 g/m²
- de la teneur en verre (G) 23 g/m²
- phlogopite mica content (P) 60 g/m²
- de la teneur en mica phlogopite
- resin content (R) 16 g/m²
(P) 60 g/m²
- de la teneur en résine (R) 16 g/m²
The descriptive code quoted in table 3, i.e.
Le code de description indiqué dans le
F23/M50/R14 for type 8.3.01, table 3, is
tableau 3, par exemple F23/M50/R14 pour
derived from:
le type 8.3.01 du tableau 3 est issu:
- thickness of the film (F) 23 μm
- de l’épaisseur du film (F) 23 μm
- muscovite mica content (M) 50 g/m²
- de la teneur en mica muscovite
- resin content (R) 14 g/m².
(M) 50 g/m²
- de la teneur en résine (R) 14 g/m².
Page 13
Page 12
4.4 Resin
4.4 Résine
In the second line, instead of:
Dans la deuxième ligne, au lieu de
... specification.
... peut être employé.
read:
lire:
... specification and particularly the flame
... et en particulier la tenue la flamme,
resistance characteristics.
peut être employé.
A l’article 6, remplacer le titre existant Correction in the French text only.
6 Prescriptions sur le matériau
(tel que reçu)
par le nouveau titre suivant:
6 Prescriptions sur le matériau
( à l’état de réception)
* At the request of the French National Committee,
* Selon la demande du Comité National Français, qui a

which has decided to introduce these corrections
décidé d’introduire ces corrections dans la future

in the future French National Standard, the following
Norme Nationale Française, les modifications éditoria-
les nécessaires. editorial changes should be made.
suivantes sont
Page 15
Page 14
6.3 Thickness
6.3 Epaisseur
In the second line, instead of:
Dans la deuxième ligne, au lieu de:
... 10 measurements on one thickness of
... 10 mesures sur une épaisseur de
material.
matériau.
read:
lire:
... 10 measurements uniformly distributed
... 10 mesures uniformément réparties sur
on one thickness of material.
une épaisseur de matériau.
Correction in the French text only.
Page 16
6.9 Caractéristiques de résistance
à la flamme
Remplacer les deuxième, troisième et
quatrième lignes de l’alinéa par la nouvelle
phrase suivante:
L’expérience a montré que les rubans
conviennent pour la réalisation de câbles
résistant au feu et satisfaisant aux
exigences de la CEI 331 s’ils sont
correctement conçus.
Août 1995 August 1995
371-3-8 © IEC:1995 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
INSULATING MATERIALS BASED ON MICA -
Part 3: Specifications for individual materials -
Sheet 8: Mica paper tapes for flame-resistant security cables
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
Their preparation is entrusted to technical committees; any IEC National Committee interested in
the subject dealt with may participate in this preparatory work. International, governmental and
non-governmental organizations liaising with the IEC also participate in this preparation. The IEC
collaborates closely with the International Organization for Standardization (ISO) in accordance with
conditions determined by agreement between the two organizations.
2) 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.
3) They have the form of recommendations for international use published in the form of standards, technical
reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter. The text of this standard is based on the following documents:
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
International Standard IEC 371-3-8 has been prepared by sub-committee 15C: Speci-
fications, of IEC technical committee 15: Insulating materials.
The text of this standard is based on the following documents:
DIS Report on voting
15C/475/DIS 15C/529/RVD
Full information on the voting for the approval of this standard can be found in the repo rt
on voting indicated in the above table.
Annex A is for information only.

–5 -
371-3-8 © IEC:1995
INTRODUCTION
This International Standard is one of a series which deals with insulating materials built up
from mica splittings or mica paper.
The series consists of three parts:
Part 1: Definitions and general requirements (IEC 371-1).
Part 2: Methods of test (IEC 371-2).
Specifications for individual materials (IEC 371-3).
Part 3:
This standard contains one of the sheets comprising part 3, as follows:
Sheet 8: Mica paper tapes for flame-resistant security cables.

371-3-8 © IEC:1995 - 7 -
INSULATING MATERIALS BASED ON MICA -
Part 3: Specifications for individual materials -
Sheet 8: Mica paper tapes for flame-resistant security cables
1 Scope
This International Standard specifies the requirements for an electrical insulating material
containing mica paper with glass fabric or plastic film and impregnated with a suitable
resin. The material is supplied in a flexible state. It may be supplied in the form of sheets
or rolls. The product is designed for use in cables capable of operating after a fire.
This specification covers material having a nominal thickness from 0,05 mm to 0,15 mm.
Materials which conform to this specification meet established levels of pe rformance.
However, the selection of a material for a specific application should be based on the
actua
...