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Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

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Brand Name :	CTT cable
Model Number :	YTTW
Certification :	CCC
Payment Terms :	L/C, T/T, L/C, T/T
Delivery Time :	7/ 15 work days
Price :	On Request
Supply Ability :	5000 m per day

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Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

Mineral insulated Fire resistance cable

YTTW cable is designed for aboveground applications.

Engineered to replace conduit and wire applications, this all-in-one cable assembly offers fewer installation steps.

The copper metallic sheath protects the conductors from damage before,during and after installation and provides overall flexibility not available with a conduit.

Rated working voltage:

– Light Duty: 500 V

– Testing Voltage (50 Hz): 2500 V - 15 min

– Heavy Duty: 750 V

– Testing Voltage (50 Hz): 2000 V - 15 min

— Flame Retardant
— High Operating Temperatures
— LSOH Halogen-free
— Great Mechanical Strength
— Competitive Installed Cost
— Public Places

Our YTTW cables provide outstanding electrical and fire-proof properties, and are halogen free.

The design, construction and testing are compliant with international standard IEC60502 and testing standard EN 50200 (PH-90),with standing temperatures of 840 °C for 90 minutes, which means they are capable of remaining in working order despite the most extreme fire conditions. Hence they are known as FIRE RESISTANT cables.

This type of cable is made up of single and multi-cores 600/1000V cables Service Temperature 90°C Emergency Overload Temperature 105°C Short-Circuit Temperature 250°C

Installation of these cables is essential in safety circuits (detection and alarm circuits,evacuation and fire-fighting systems).

**STANDARDS:**
	National	International
Construction	GB/T 12706	IEC 60502
Non fire-propagating	GB/T 18380.3	IEC 60332-3
Low opacity of smoke emitted	GB/T 17651.2	IEC 61034-2
Fire-resistant	GB/T 12666.6	IEC 60331
Low acidity and corrosiveness of gases	GB/T 17650.2	IEC 60754-2
Halogen free	GB/T 17650.2	IEC 60754-1
Non flame-propagating	GB/T 18380.1	IEC 60332-1-2

**Cable structure**
	Conductor	Stranded copper conductor class 2
	Insulation	mica tape¹, flame retardant
	Filler	Glass yarns
	core wraping	Core wrapping with glass-fibre tape as flame-protection
	Sheath	Corrugated Copper
	Outer covering (Optional)	Anticorrosion Outer Sheath PVC

**USAGE CHARACTERISTICS**
Service Temperature	90°C
Emergency Overload Temperature	105°C
Short-Circuit Temperature	250°C
Laying Temperature	should not be lower than 0°C
Minimum bending radius when laying	Single core: r = 6 x cable outer diameter
Sheath colour	The standard color is orange, other colors are available.

**3+1 CORE**
Nominal cross Section	Nominal insulation thickness	Thickness of metallic sheath	Outer Diameter approx.	Ampacity	Voltage drop cos μ= 0,8
mm²	mm	mm	mm	A	V/A.km
3×16+1×10	1.0	0.80	16.56	85	2.54
3×25+1×16	1.0	0.90	19.77	118	1.59
3×35+1×16	1.1	1.00	22.18	150	1.16
3×50+1×25	1.2	1.00	25.87	192	0.85
3×70+1×35	1.2	1.00	29.81	228	0.59
3×90+1×50	1.2	1.00	34.04	273	0.43

Notes:

Ampacities based on 90°C conductor temperature and 40°C ambient temperature according to IEC 287 standard

The voltage drop based on conductor temperature 90°C is on the high side calculated only for reference

When the cable adopt compressed cores, diameter of cable should be 95% of normal diameter, diameter of metallic sheath should be adjusted correspondingly. When enhancing the insulation, outer diameter of cable is increased for about 5%.

¹ Glass cloth reinforced Muscovite mica tape

2 Current ratings in Ampere (A) up to 30° C ambient temperature

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Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

fire rated electrical cable

fireproof electrical cable

Flame Resistant Cable IEC 60502

Durable Mineral Insulated Cable , Flame Resistant Cable 3+1 Core Stranded Copper Conductor

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