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Flexible fire-resistant cable
This standard is primarily based on GB/T 12706.1-2020, "Extruded Insulated Power Cables and Accessories for Rated Voltages from 1 kV (Um = 1.2 kV) to 35 kV (Um = 40.5 kV)—Part 1: Cables for Rated Voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV)," as well as GB/T 19666-2019, "General Rules for Flame-Retardant and Fire-Resistant Wires and Cables," among other standards. This product is intended for critical electrical engineering applications, including hazardous areas such as airports, oil depots, liquefied gas stations, chemical plants, coal mines, nuclear power stations, steel mills, and shipyards; advanced and essential public facilities like satellite ground stations, railway wiring systems, alarm systems, and fire protection systems; and locations where personal and property safety must be ensured, such as historic buildings, hotels, high-rise structures, museums, libraries, banks, hospitals, insurance companies, shopping malls, and research institutions.
Product Models and Nomenclature
Model Name
YTTW Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated Flexible Fire‑Resistant Cable
YTTWV Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated PVC‑Sheathed Flexible Fire‑Resistant Cable
YTTWY Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated Polyolefin‑Coated Anti‑Corrosion Flexible Fire‑Resistant Cable
Product Specifications
Model Rated Voltage Number of Cores Nominal Cross‑Section (mm²)
YTTW YTTWV YTTWY 450/750 V 0.6/1 kV 1 1.0–630
2 1.0–300
3 1.0–240
4 1.0–185
3+1 3×16+1×10
3×25+1×16
3×35+1×16
3×50+1×25
3×70+1×35
3×95+1×50
3×120+1×70
3×150+1×70
3×185+1×95
3×240+1×120
3+2 3×25+2×16
3×35+2×16
3×50+2×25
3×70+2×35
4+1 4×16+1×10
4×25+1×16
4×35+1×16
4×50+1×25
4×70+1×35
5–7 1.0–4.0
12–37 1.0–2.5
Nominal Thickness of the Copper Sheath
Nominal Cross‑Section (mm²) Nominal Thickness of Copper Sheath (mm)
1 Core 0.4
2 Cores 0.4
3 Cores 0.4
4 Cores 0.4
5 Cores 0.45
7 Cores 0.45
12 Cores 0.4
19 Cores 0.4
24 Cores 0.4
30 Cores 0.4
37 Cores 0.4
1.0 0.4
1.5 0.4
2.5 0.4
4 0.4
6 0.4
10 0.4
16 0.4
25 0.4
35 0.45
50 0.5
70 0.5
95 0.5
120 0.5
150 0.5
185 0.5
240 0.6
300 0.6
400 0.6
500 0.6
630 0.6
Note: For core counts not listed, the nominal thickness of the copper sheath shall be selected as the value closest to that specified for the corresponding core count.
Description
- Product Description
-
This standard is primarily based on GB/T 12706.1-2020, “Extruded Insulated Power Cables and Accessories for Rated Voltages from 1 kV (Um = 1.2 kV) to 35 kV (Um = 40.5 kV)—Part 1: Cables for Rated Voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV),” as well as GB/T 19666-2019, “General Requirements for Flame‑Retardant and Fire‑Resistant Wires and Cables,” among other relevant standards. This product is intended for critical electrical engineering applications, including hazardous areas such as airports, oil depots, liquefied gas stations, chemical plants, coal mines, (nuclear) power stations, steel mills, and shipbuilding facilities; advanced and vital public infrastructure, such as satellite ground stations, railway wiring systems, alarm systems, and fire‑protection systems; and environments where the safety of persons and property must be ensured, including historic buildings, hotels and guesthouses, high‑rise structures, museums, libraries, banks, hospitals, insurance institutions, shopping malls, and research institutes.
Product Model and Naming
Model number Name YTTW Copper‑core, corrugated copper‑sheathed, inorganic mineral‑insulated flexible fire‑resistant cable YTTWV Copper‑core, corrugated copper‑sheathed, inorganic mineral‑insulated, PVC‑sheathed flexible fire‑resistant cable YTTWY Copper‑core, corrugated copper‑sheathed, inorganic mineral‑insulated, polyolefin‑coated, corrosion‑resistant outer sheath, flexible fire‑resistant cable. Product Specifications
Model number Rated voltage Number of cores Nominal Cross-Sectional Area/mm² YTTW
YTTWV
YTTWY450/750V
0.6/1kV1 1.0~630 2 1.0~300 3 1.0~240 4 1.0~185 3+1 3×16+1×10 3×25+1×16 3×35+1×16 3×50+1×25 3×70+1×35 3×95+1×50 3×120+1×70 3×150+1×70 3×185+1×95 3×240+1×120 3+2 3×25+2×16 3×35+2×16 3×50+2×25 3×70+2×35 4+1 4×16+1×10 4×25+1×16 4×35+1×16 4×50+1×25 4×70+1×35 5-7 1.0~4.0 12-37 1.0-2.5 Nominal thickness of the copper sheath
Nominal cross-sectional area/mm² Nominal thickness of copper sheath / mm 1 core 2-core 3-core 4 cells 5-core 7-core 12-core 19-core 24 cores 30-pin 37 cores 1.0 0.4 0.4 0.4 0.4 0.45 0.45 0.4 0.4 0.4 0.4 0.4 1.5 0.4 0.4 0.4 0.4 0.45 0.45 0.4 0.4 0.4 0.4 0.4 2.5 0.4 0.4 0.4 0.4 0.45 0.45 0.4 0.4 0.4 0.4 0.4 4 0.4 0.4 0.4 0.4 0.45 0.45 / / / / / 6 0.4 0.4 0.4 0.4 0.45 0.45 / / / / / 10 0.4 0.45 0.45 0.45 0.5 0.5 / / / / / 16 0.4 0.45 0.45 0.5 0.5 / / / / / / 25 0.4 0.5 0.5 0.5 0.5 / / / / / / 35 0.45 0.5 0.5 0.5 0.5 / / / / / / 50 0.5 0.5 0.5 0.6 0.6 / / / / / / 70 0.5 0.5 0.6 0.6 0.6 / / / / / / 95 0.5 0.5 0.6 0.6 0.6 / / / / / / 120 0.5 0.5 0.6 0.6 0.6 / / / / / / 150 0.5 0.6 0.6 0.7 0.7 / / / / / / 185 0.5 0.6 0.6 0.7 0.7 / / / / / / 240 0.6 0.6 0.6 0.7 0.7 / / / / / / 300 0.6 / / / / / / / / / / 400 0.6 / / / / / / / / / / 500 0.6 / / / / / / / / / / 630 0.6 / / / / / / / / / / Note: For conductor sizes not listed, the nominal thickness of the copper sheath shall be taken as the value closest to that specified for the corresponding conductor size.
FAQs
Which regions are covered by the scope of cooperative supply
Our products are sold to more than 20 provinces, municipalities, and autonomous regions across the country, and we can also undertake various foreign-related engineering supply and services.
How is the company's R&D and technical capability
Establish a professional talent team, adhere to independent innovation and the combination of industry, academia and research, and possess strong research and development capabilities and technological advantages.
Can the product meet special requirements such as fire prevention and environmental protection
We can provide special cables such as flame retardant, fire-resistant, low smoke, and halogen-free, which meet the standards of green environmental protection, safety, and fire prevention.
Where are the production bases and service outlets distributed
Headquartered in Sima, with a manufacturing base in Ningjin, Hebei, and over 100 marketing and technical service outlets nationwide.
How is the company's credit reputation
For 10 consecutive years, it has been awarded the provincial-level "Contract abiding and Creditworthy Unit" and has also been honored with the title of Consumer Trusted Unit in Hebei Province.
What authoritative qualifications and honors does the enterprise possess
Received multiple honors including Top 200 Comprehensive Strength Enterprises in the National Cable Industry, AAA Credit Enterprise, Hebei Province High Quality Products, and Provincial Advanced Enterprise in Quality and Efficiency.
Flexible fire-resistant cable
This standard is primarily based on GB/T 12706.1-2020, "Extruded Insulated Power Cables and Accessories for Rated Voltages from 1 kV (Um = 1.2 kV) to 35 kV (Um = 40.5 kV)—Part 1: Cables for Rated Voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV)," as well as GB/T 19666-2019, "General Rules for Flame-Retardant and Fire-Resistant Wires and Cables," among other standards. This product is intended for critical electrical engineering applications, including hazardous areas such as airports, oil depots, liquefied gas stations, chemical plants, coal mines, nuclear power stations, steel mills, and shipyards; advanced and essential public facilities like satellite ground stations, railway wiring systems, alarm systems, and fire protection systems; and locations where personal and property safety must be ensured, such as historic buildings, hotels, high-rise structures, museums, libraries, banks, hospitals, insurance companies, shopping malls, and research institutions.
Product Models and Nomenclature
Model Name
YTTW Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated Flexible Fire‑Resistant Cable
YTTWV Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated PVC‑Sheathed Flexible Fire‑Resistant Cable
YTTWY Copper-Conductor Corrugated Copper Sheath Inorganic Mineral Insulated Polyolefin‑Coated Anti‑Corrosion Flexible Fire‑Resistant Cable
Product Specifications
Model Rated Voltage Number of Cores Nominal Cross‑Section (mm²)
YTTW YTTWV YTTWY 450/750 V 0.6/1 kV 1 1.0–630
2 1.0–300
3 1.0–240
4 1.0–185
3+1 3×16+1×10
3×25+1×16
3×35+1×16
3×50+1×25
3×70+1×35
3×95+1×50
3×120+1×70
3×150+1×70
3×185+1×95
3×240+1×120
3+2 3×25+2×16
3×35+2×16
3×50+2×25
3×70+2×35
4+1 4×16+1×10
4×25+1×16
4×35+1×16
4×50+1×25
4×70+1×35
5–7 1.0–4.0
12–37 1.0–2.5
Nominal Thickness of the Copper Sheath
Nominal Cross‑Section (mm²) Nominal Thickness of Copper Sheath (mm)
1 Core 0.4
2 Cores 0.4
3 Cores 0.4
4 Cores 0.4
5 Cores 0.45
7 Cores 0.45
12 Cores 0.4
19 Cores 0.4
24 Cores 0.4
30 Cores 0.4
37 Cores 0.4
1.0 0.4
1.5 0.4
2.5 0.4
4 0.4
6 0.4
10 0.4
16 0.4
25 0.4
35 0.45
50 0.5
70 0.5
95 0.5
120 0.5
150 0.5
185 0.5
240 0.6
300 0.6
400 0.6
500 0.6
630 0.6
Note: For core counts not listed, the nominal thickness of the copper sheath shall be selected as the value closest to that specified for the corresponding core count.
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