语言:

Calcined mica tape

product No:R-5461-P-GFD/FIRO-PGFD
Unit:KG

Introduction
FIRO-CM is a dry and flexible insulating tape made of calcinated mica paper Muscovite ,a glass cloth and modified silicone resin .


Types
According to the different reinforcing material, the products can be divided into following ones:
R-5461- CM-GS/FIRO-CMGS Glass Backed Calcined Muscovite Mica Tape
Note: Meaning of product code
R-5461: Rongtai product serial number; CM: calcined muscovite;


Properties
FIRO-CM is used for the insulation of flame resistant security cables according to requirements IEC 331 or BS 6387 .Pyronax is wound up around the bare or insulated wire and it provides a protection barrier .The insulation must withstand at temperature up to 1000℃ .Pyronax is not burning ,non toxic and it is resistant for corrosion ,humidity and acids .


Availability
Thickness: 0.10mm-0.18mm
Width: .5mm-1000mm
Length: 300m 500m 1000m 2000m .Traverse wound spools optional
Standard cores: 52mm 54mm 76mm 120mm


Storage
In dry environment at room temperature, the storage period is 3 year.


Packaging
One pack is usually at 50kg, sealed with plastic film and packed in carton. The fumigation-free pallet shall be used when exporting. Each pallet contains <1000KG, or protected by metal drum.


Applications
The technicians should select appropriate width mica tape based on the wire sizes, winding tension, angles and wrapping speed, in case of broken tape or missed space, to ensure the surface of the insulated conductors after wrapping is smooth and flat, no mica falling off.
When winding small cross section wires, due to small coiling radius, the mica falls off easily. The width of the mica tape is small and the tensile strength is small, so the coiling tension and speed shall be uniform, in case tape broken and mica powder fallen off.
Mica tape wrapping layers and lapping rate are different when the material properties, specifications and models of the cables are different, and shall be determined by the cable designer based on the result of fire resistance test. According to IEC standard about fire-resistant cable testing, we recommend wrapping layers are 2 and the lapping rate is not less than 50%, i.e. the wire is wrapped by 4 layers of mica tapes.

 

Glass Backed Calcined Muscovite Mica Tape

ITEM

UNIT

R-5461-CM-GS



0.12mm

0.13mm

0.14mm

Appearance


No alien material ,no split ,scar&hole,no broken folded

Length

m

500/1000/2000

Thickness

mm

0.12±0.02

0.13±0.02

0.14±0.02

Weight of Tape 

g/m2

150±15

160±15

170±15

Mica Content

%

>55

>60

>60

Breakdown Voltage

KV

>1.8

>2.0

>2.0

Tensile Strength

N/15mm

≥150

≥150

≥150

Binder Content

%

20±3

20±3

20±3

Fire Grades

900℃-1050℃