Flexible Mi Wire Yttw, Copper Sheathed, Fire Resistant for Industrial Use

• Customization: Available
• Application: Construction, Overhead, Industrial, Power Station
• Voltage: Low and Medium Voltage Cable
• Model NO.: YTTW YTTWV BTTW BTTRZ RTTW BTTE. etc
• Current: DC Cable
• Insulation Material: Mica Tape
• Sheath Material: Copper Sheath
• Material Shape: Round Wire
• Wire Core Material: Bare Copper Wire
• Certification: ISO, CCC, RoHS
• Model: Yttw
• Brand: Gongniu or OEM
• MOQ: 2000meter
• Range of Application: Flame Retardant
• Voltage Rate: 0.6/1kv, 600/1000V
• Class of Conductor: 1 or 2
• Size Range: 2.5-630 mm2
• Outer Sheath Material (Is Optioned): LSZH (Low Smoking Zero Halogen)
• Transport Package: Steel-Wooden Drum/Steel Drum
• Specification: 500M/drum
• Trademark: Gongniu cable
• Origin: China
• HS Code: 8544492100
• Production Capacity: 50000meter/Day

Product Description

Specification

Mineral Insulated Fire Resistant Cables

Mineral insulated fire-resistant cables (MI cables) are designed to maintain circuit integrity during fire conditions.
Unlike conventional fire-resistant cables that use organic insulation, MI cables use inorganic materials such as magnesium oxide or mica, combined with copper or aluminum alloy sheaths.

Key features

Common types

Application

Excellent fire resistance at temperatures up to 950–1000 °C
Low smoke, halogen-free, environmentally friendly
Long service life and high mechanical strength
Reliable performance in critical safety systems

BTTW: Rigid MI cable with copper sheath
YTTW / YTTWV: Flexible MI cable with copper sheath, easy to install
BTTRZ: Flexible MI cable with LSZH sheath for tunnels, hospitals, and data centers
RTTW: Aluminum alloy sheathed MI cable, lighter and cost-effective
BTWTZ / BTWTYZ: Armored versions for harsh mechanical environments

1. Fire protection systems for all types of buildings.

2. High-rise civil buildings, office buildings, hotels, shopping malls, exhibition centers, museums, libraries, hospitals, stadiums, airports and so on.

3. High temperature field, such as steel, smelting, glass, and other workshops.

4. Flammable and explosive fields, such as petroleum, chemical, pharmaceutical.

5. National defense engineering, such as ship, aviation, aerospace, satellite launch, control center, etc

Cross-section of conductor	Insulation Thickness	Sheath Thickness	Norminal copper sheath	Max. D.C Resistance of Copper Sheath (20 ℃)	Approx. O.D.	Approx. Weight	Max. D.C Resistance of Conductor (20 ℃)
mm2	mm	mm	mm2	Ω/km	mm	Kg/km	Ω/km
1x10	1.0	0.4	9.26	2.07	7.80	247	1.83
1x16	1.0	0.4	10.55	1.82	8.80	305	1.15
1x35	1.1	0.4	13.94	1.40	11.50	497	0.524
1x50	1.2	0.5	20.57	0.986	13.60	667	0.387
2x2.5	0.8	0.4	9.49	2.02	7.96	194	7.41
2x4	0.8	0.4	11.18	1.72	9.30	239	4.61
2x6	0.8	0.4	12.94	1.51	10.70	279	3.08
2x95	1.2	0.5	37.05	0.557	24.10	2176	0.193
3x2.5	0.8	0.4	10.55	1.82	8.80	226	7.41
3x4	0.8	0.4	12.31	1.59	10.20	287	4.61
3x6	0.8	0.4	13.69	1.43	11.30	361	3.08
3x10	1.0	0.4	18.09	1.14	14.80	527	1.83
4x16	1.0	0.5	29.36	0.709	19.20	942	1.15
4x25	1.0	0.5	34.07	0.606	22.20	1376	0.727
4x50	1.2	0.5	38.47	0.536	25.0	2353	0.387

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