Home page Best Alloy Division Textile Division Consulting Division Contacts E-mail
 
 
 
 
SIC
 
 
 
 
 
EOS 3 srl
Via G. Boccaccio, 18
20123 Milano - Italy
phones: +39 02/48008931
fax: +39 02/43912461

EOS 3 Bejing
Jingtai Tower,
24 Jianguomen Wai Street
Chaoyang District
Bejing (P . R . China)
phone: +86 1065156483
fax: +86 1065156484
 
  > Eos 3  > Best Alloy  > Components for electrical and optic fibre fire resistant cables

Components for electrical and optic fibre fire resistant cables:

 

Mica Tape

For electrical and fibre optic fire resistant cables

 

The Mica tape is prepared with selected natural mica material or synthetic compound (paper) and a glass fibre cloth (tape) jointed by a proper silicone binder.

The natural mica tape can be cleaved to obtain thin flakes of constant thickness.

The main Mica Tape types are the following two::

PHEOS : Phlogopite mica type
Phlogopite is a chemical composition of Potassium (K) and Magnesium (Mg) KMg3 (Al Si3 O10)


MUSEOS : Muscovite mica type
Muscovite is a chemical composition of Potassium (K) and Aluminium (Al) KAl2 (Al Si3 O10)

The Synthetic Mica Tape is the following one:

SYNEOS : Synthetic mica tape.
Synthetic Mica tape is a synthetic compound of pure Silicon dioxide (Sio2) with excellent resistance at high temperature (better than the two previous types).

On request EOS 3 srl can supply an other type of Mica Tape:

MUSEOS CAL : Calcined Muscovite Mica Tape.
The Natural Muscovite is calcined before the junction with the glass cloth tape.


 

 

Properties

PHEOS, MUSEOS, SYNEOS AND MUSEOS CAL mica tapes have an excellent fire resistance and warrant a very good electrical property at high temperature.

Also the silicon binder, when exposed to a flame, gradually turns to silicon dioxide, that has a good insulation property at high temperature.

Take note of the special high value of the EOS 3 srl mica tape Breakdown Voltage.

Characteristics

Appearance: no alien material. No split, scare and hole. No broken and folded. No patched place

Tape is without connections and paper with max 3 connections.

Dimensions: Width 6 – 880 (mm.). Length: 600 mt. up to 1200 mt.
 
Coil dimension suggested: diam. 300 mm. – 400 mm.

Inner diameter: 76 mm .


PHEOS

Phlogopite natural glass cloth single side Mica tape

It’s the junction of glass fibre cloth (tape) and plogopite (paper) with silicone binder

  PHEOS 11 PHEOS 13 PHEOS 15
N.3 thickness (mm.) 0.11 (± 0.015) 0.13 (± 0.015 0.15 (± 0.015
Breakdown Voltage (KV) 1.5 min. 1.7 min. 2.0 min.
Tensile strength (N/15mm) 170 min. 200 min. 200 min.
Binder content (%) 13 ±3 13 ±3 13 ±3
Paper content (%) 60 min. 70 min. 70 min.
Tape+paper weight (g/m2) 140 ± 10 180 ± 20 215 ± 20
Phlogopite weight (g/m2) 100 ± 5 140 ± 5 160 ± 5


Operating temperature

The max operating temperature suggested is 700 °C – 800 °C.
More detailed explanations are reported in “Operating Temperature”.


MUSEOS

Muscovite natural glass cloth single side Mica tape

Mica tape with Muscovite paper.
It’s the junction of glass fibre cloth (tape) and Muscovite (paper) with silicone binder.

  MUSEOS 11 MUSEOS 13 MUSEOS 15
N.3 thickness (mm.) 0.11 (± 0.015) 0.13 (± 0.015 0.15 (± 0.015
Breakdown Voltage (KV) 1.4 min. 1.6 min. 1.8 min.
Tensile strength (N/15mm) 200 min. 200 min. 200 min.
Binder content (%) 13 ±3 13 ±3 13 ±3
Paper content (%) 60 min. 70 min. 70 min.
Tape+paper weight (g/m2) 140 ± 10 180 ± 20 215 ± 20
Phlogopite weight (g/m2) 100 ± 5 140 ± 5 160 ± 5


Operating temperature

The max operating temperature suggested is 500 - 600°C.
More detailed explanations are reported in “ Operating Temperature”.


SYNEOS

Synthetic glass cloth single side Mica tape

Mica tape with Synthetic paper.
It’s the junction of glass fibre cloth (tape) and Synthetic (paper) with silicone binder.

  SYNEOS 11 SYNEOS 13 SYNEOS 15
N.3 thickness (mm.) 0.11 (± 0.015) 0.13 (± 0.015 0.15 (± 0.015
Breakdown Voltage (KV) 1.3 min. 1.5 min. 1.7 min.
Tensile strength (N/15mm) 200 min. 200 min. 200 min.
Binder content (%) 13 ±3 13 ±3 13 ±3
Paper content (%) 65 min. 75 min. 75 min.
Tape+paper weight (g/m2) 145 ± 10 180 ± 20 210 ± 20
Phlogopite weight (g/m2) 100 ± 5 140 ± 5 160 ± 5


Operating temperature

The max operating temperature suggested is 950 °C - 1000 °C.
More detailed explanations are reported in “ Operating Temperature”.


MUSEOS CAL

Calcined Muscovite natural glass cloth single side Mica tape

Mica tape with Calcined Muscovite paper.
It’s the junction of glass fibre cloth (tape) and Muscovite (paper) with silicone binder.

  MUSEOS CAL 11 MUSEOS CAL 13  
N.3 thickness (mm.) 0.11 (± 0.015) 0.13 (± 0.015  
Breakdown Voltage (KV) 1.5 min. 1.8 min.  
Tensile strength (N/15mm) 200 min. 200 min.  
Binder content (%) 13 ±3 13 ±3  
Paper content (%) 60 min. 70 min.  
Tape+paper weight (g/m2) 140 ± 10 180 ± 20  
Phlogopite weight (g/m2) 100 ± 5 140 ± 5  


Operating temperature

The max operating temperature suggested is 700 - 800 °C.
More detailed explanations are reported in “Operating Temperature”.
The breakdown voltage of MUSEOS CAL is the highest one and it is due to the calcination traitment.


Applications
PHEOS, MUSEOS, SYNEOS and MUSEOS CAL sMica tape are used for power and control cables, for instrumentation and signalling cables, which must have high fire resistance.
Are also used in fibre optic fire resistant cables.
The EOS 3 srl mica tape is suitable to produce electrical and fibre optic cable according to the following Norms:: IEC 60331 - DIN 4102 - BS6387CWZ - NFC32-070 – ecc.


Operating temperature
The max operating temperature reported for each kind of EOS 3 BEST ALLOY mica tapes is a characteristic of the components but not to confuse with the max operating working temperature in a fire emergency.
The cable can work for a fixed time in a fire emergency condition at an higher temperature than the max operating reported temperature and this is also due to the manufacture.
The producers of finished cable can reach the best quality of fire resistant cable using a proper manufacture with each type of EOS 3 BEST ALLOY mica tapes.
They can choose the most economic solution to overcome the required tests by the above mentioned norms.


Dimension
The standard thickness of mica tape are 0.11 mm. – 0.13 mm. – 0.15 mm. ( as reported in the characteristics of each type ).
On customer request EOS 3 srl can supply different thickness.