Product introduction
Firwo®-CMG Calcined muscovite mica tape for fire-resistant wire & cable, a band-shaped electrical and thermal insulation material, consists of the high quality Pamica® calcined muscovite mica paper bonded to supporting materials of non-alkaline glass fabric, impregnated with high temperature resistant silicone resin.
Availability
Width: from 5-1000mm
Length: 300m, 500m, 1000m(Pad),3000-10000m(Spool)
Standard cores: 76mm
(Various specifications available according to customers’ requirements)
FIRWO® Mica Tape for Fire-resistant Wire & Cable
| Products | Type | Normal Thickness (MM) | Total Substance | Refractory standard |
|---|---|---|---|---|
| FRMICA® FP Mica tape | FP120G16 | 0.145±0.015 | 210±15 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| FP120G28 | 0.165±0.015 | 245±15 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
|
| FIRWO® CMG Calcined muscovite mica tape with single side glass fabric | CM80G32 | 0.100±0.015 | 135±10 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| CM100G32 | 0.120±0.015 | 158±10 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| CM120G32 | 0.140±0.015 | 181±12 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® PG Phlogopite mica tape with single side glass fabric | P80G32 | 0.100±0.015 | 125±9 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| P100G32 | 0.110±0.015 | 148±9 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| P120G32 | 0.125±0.015 | 172±11 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| P160G32 | 0.140±0.015 | 216±11 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® PGD Phlogopite mica tape with double sides glass fabric | P140GD42 | 0.145±0.02 | 202±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| P160GD42 | 0.160±0.02 | 225±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® PGF Phlogopite mica atpe with glass fabric and film backed | P140GF46 | 0.145±0.02 | 203±12 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| P160GF46 | 0.160±0.02 | 226±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® PF Phlogopite mica tape with single side PE film | P120F25 | 0.120±0.015 | 158±11 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| P160F25 | 0.140±0.015 | 201±11 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® SG Synthetic mica tape with single side glass fabric | S80G32 | 0.100±0.015 | 125±10 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| S100G32 | 0.110±0.015 | 148±12 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| S120G32 | 0.125±0.015 | 173±12 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® SGF Synthetic mica tape with glass fabric and film backed | S120GF46 | 0.130±0.02 | 181±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| S140GF46 | 0.145±0.02 | 203±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| S160GF46 | 0.160±0.02 | 226±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 | |
| FIRWO® SGD Synthetic mica tape with double sides glass fabric | S140GD42 | 0.150±0.02 | 202±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
| S160GD42 | 0.170±0.02 | 225±13 | BS6387-2013 GB/T19216.31-2008 IEC60331 |
Selection of tape width
| Conductor section s (mm2) | Conductor diameter d (mm) | Width of mica tape (mm) Theoretical width T=0.1 (80gsm) | 0.12（120gsm） | 0.14（140gsm） | Overlapping ratio (%) Thickness (mm) T=0.1 | 0.12 | 0.14 |
|---|---|---|---|---|---|---|---|
| 1.0 | 1.13 | 5 | 5 | 5 | 45 | 44 | 44 |
| 1.5 | 1.38 | 5 | 5 | 5 | 34 | 33 | 32 |
| 2.5 | 1.78 | 6 | 6 | 6 | 30 | 30 | 29 |
| 4 | 2.26 | 8 | 8 | 8 | 34 | 34 | 33 |
| 6 | 2.76 | 10 | 10 | 10 | 36 | 36 | 36 |
| 10 | 3.57 | 12 | 12 | 12 | 32 | 32 | 31 |
| 16 | 4.51 | 15 | 15 | 15 | 32 | 31 | 31 |
| Calculation based on recommended taping angle 45° and overlaping 50%. More tape width calculation formula as below: | |||||||
d——Conductor diameter （mm)
t——Tape thickness （mm）
k——Overlapping ratio （%）
α——Taping angle （°）
b——Tape width （mm）
Smaller taping angle increases the taping efficiency but at expense of conductor wrapping tightness which affects negatively for insulating property and extrusion. Recommended taping angle for lowest friction on tape is 45°(+/-5°).
Firwo®-CMG calcined muscovite mica tape, special technology manufactured, is an idea solution for all kinds of fire resistant wires & cables. Heating the selected raw mica with high temperature improve the stability of mica tape by removing the water crystallization and impurities which affect negatively the dielectric strength and temperature resistance. Silicone resin content of Firwo®-CM mica tape is 50% more than same of normal tapes. The conductor protection layer, sinter of silicone resin together with mica under high temperature, improves the property of temperature resistance.
Due to the superior properties of temperature resistance, low fume halogen free and flexibility, Firwo®-CMG mica tape is the preferable solution for marine & shipboard cable, nuclear cable, and other cables with thinner diameter.
Properties
◆ Pass IEC60331 fire resistant standard with single wrapping
◆ Pass BS6387CWZ fire resistant standard with double wrapping
◆ High speed wrapping up to 70m/min
◆ No fabric hairness for coductor wrapping
◆ Low fume halogen free
◆ 10000 meters continuous efficient wrapping without joint
◆ 20% more dielectric strength
Technical Data
| Commodity | Calcined muscovite mica tape with single side glass fabric FIRWO® -CMG |
||
|---|---|---|---|
| Item Code | CM80G32 | CM100G32 | CM120G32 |
| Thickness(mm) | 0.10 ± 0.015 | 0.12 ± 0.015 | 0.14 ± 0.015 |
| Total Substance(g/m2) | 135 ± 10 | 158 ± 10 | 181 ± 12 |
| Mica Content(g/m2) | 80 ± 3 | 100 ± 3 | 120 ± 5 |
| Glass Content(g/m2) | 32 ± 3 | 32 ± 3 | 32 ± 3 |
| Film Content(g/m2) | ~ | ~ | ~ |
| Bond Content(g/m2) | 23 ± 4 | 26 ± 4 | 29 ± 4 |
| Dielectric Strength (kV/layer) | > 1.2 | > 1.5 | > 1.8 |
| Tensile Strength(N/cm) | > 100 | > 120 | > 120 |