SHENZHEN DONGJIAXIN WIRE&CABLE CO.,LTD
SHENZHEN DONGJIAXIN WIRE&CABLE CO.,LTD
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JG/T313-2014 standard for the construction Industry of the Peoople's Republic of China "Rated Voltage 0.6/1kv and Inorganic Mineral Insulation Cables and Terminals under Metal Coils"
3. Application
It is mainly suitable for high-rise buildings,entertainment venues,and numerous construction projects that require high quality and high safety in large cities with a rated voltage of 750V.In the event of a fire,the power supply will not be cut off,and safety will be achieved.
4. Cable Structure Chart.
1. Single Core
| Cross section of conductor(mm²) | Conductor structure | Insulation Thickness(mm) | Copper sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 1×10 | 7 | 0.7 | 0.4 | 11.0 | 1.83 |
| 1×16 | 7 | 0.7 | 0.4 | 11.0 | 1.15 |
| 1×25 | 7 | 0.7 | 0.4 | 12.0 | 0.727 |
| 1×35 | 7 | 0.7 | 0.4 | 13.0 | 0.524 |
| 1×50 | 10 | 0.7 | 0.5 | 15.0 | 0.387 |
| 1×70 | 14 | 0.7 | 0.5 | 16.0 | 0.268 |
| 1×95 | 19 | 0.9 | 0.5 | 18.0 | 0.193 |
| 1×120 | 24 | 0.9 | 0.5 | 21.0 | 0.153 |
| 1×150 | 30 | 1.0 | 0.5 | 22.0 | 0.124 |
| 1×185 | 37 | 1.1 | 0.5 | 24.0 | 0.0991 |
| 1×240 | 48 | 1.1 | 0.6 | 28.0 | 0.0754 |
| 1×300 | 61 | 1.2 | 0.6 | 30.0 | 0.0601 |
| 1×400 | 61 | 1.4 | 0.6 | 33.0 | 0.0470 |
2. 2 Core&3 Core
| Cross section of conductor(mm²) | Conductor structure | Insulation Thickness(mm) | Copper sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 2×1.5 | 1 | 1.6 | 0.4 | 11.0 | 12.1 |
| 2×2.5 | 1 | 1.7 | 0.4 | 11.0 | 7.41 |
| 2×4 | 1 | 1.8 | 0.4 | 12.0 | 4.61 |
| 2×6 | 1 | 2.0 | 0.4 | 12.0 | 3.08 |
| 2×10 | 7 | 2.2 | 0.4 | 14.0 | 1.83 |
| 2×16 | 7 | 2.4 | 0.4 | 16.0 | 1.15 |
| 2×25 | 7 | 0.7 | 0.5 | 20.0 | 0.727 |
| 2×35 | 7 | 0.7 | 0.5 | 22.0 | 0.524 |
| 2×50 | 10 | 0.7 | 0.5 | 24.0 | 0.387 |
| 2×70 | 14 | 0.7 | 0.5 | 29.0 | 0.268 |
| 2×95 | 19 | 0.7 | 0.5 | 33.0 | 0.193 |
| 2×120 | 24 | 0.7 | 0.5 | 36.0 | 0.153 |
| 2×150 | 30 | 0.9 | 0.6 | 38.0 | 0.124 |
| 3×1.5 | 1 | 0.9 | 0.4 | 11.0 | 12.1 |
| 3×2.5 | 1 | 1.0 | 0.4 | 11.0 | 7.41 |
| 3×4 | 1 | 1.1 | 0.4 | 12.0 | 4.61 |
| 3×6 | 1 | 1.1 | 0.4 | 13.0 | 3.08 |
| 3×10 | 7 | 1.2 | 0.4 | 15.0 | 1.83 |
| 3×16 | 7 | 1.4 | 0.4 | 17.0 | 1.15 |
| 3×25 | 7 | 1.6 | 0.5 | 21.0 | 0.727 |
| 3×35 | 7 | 1.7 | 0.5 | 23.0 | 0.524 |
| 3×50 | 10 | 1.8 | 0.5 | 27.0 | 0.387 |
| 3×70 | 14 | 2.0 | 0.6 | 27.0 | 0.268 |
| 3×95 | 19 | 2.2 | 0.6 | 30.0 | 0.193 |
| 3×120 | 24 | 2.4 | 0.6 | 33.0 | 0.153 |
| 3×150 | 30 | 0.7 | 0.6 | 36.0 | 0.124 |
3. 4 Core&5 Core
| Cross section of conductor(mm²) | Conductor structure | Insulation Thickness(mm) | Copper sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 4×1.5 | 1 | 0.7 | 0.4 | 11.0 | 12.1 |
| 4×2.5 | 1 | 0.7 | 0.4 | 12.0 | 7.41 |
| 4×4 | 1 | 0.7 | 0.4 | 13.0 | 4.61 |
| 4×6 | 1 | 0.7 | 0.4 | 14.0 | 3.08 |
| 4×10 | 7 | 0.7 | 0.5 | 17.0 | 1.83 |
| 4×16 | 7 | 0.9 | 0.5 | 20.0 | 1.15 |
| 4×25 | 7 | 0.9 | 0.5 | 23.0 | 0.727 |
| 4×35 | 7 | 1.0 | 0.5 | 26.0 | 0.524 |
| 4×50 | 10 | 1.1 | 0.5 | 30.0 | 0.387 |
| 4×70 | 14 | 1.1 | 0.6 | 31.0 | 0.268 |
| 4×95 | 19 | 1.2 | 0.6 | 34.0 | 0.193 |
| 4×120 | 24 | 1.4 | 0.6 | 37.0 | 0.153 |
| 4×150 | 30 | 1.6 | 0.6 | 41.0 | 0.124 |
| 5×1.5 | 1 | 1.7 | 0.4 | 12.0 | 12.1 |
| 5×2.5 | 1 | 1.8 | 0.4 | 13.0 | 7.41 |
| 5×4 | 1 | 2.0 | 0.4 | 14.0 | 4.61 |
| 5×6 | 1 | 2.2 | 0.4 | 16.0 | 3.08 |
| 5×10 | 7 | 2.4 | 0.5 | 19.0 | 1.83 |
| 5×16 | 7 | 0.7 | 0.5 | 22.0 | 1.15 |
| 5×25 | 7 | 0.7 | 0.5 | 26.0 | 0.727 |
| 5×35 | 7 | 0.7 | 0.5 | 29.0 | 0.524 |
| 5×50 | 10 | 0.7 | 0.5 | 32.0 | 0.387 |
| 5×70 | 14 | 0.7 | 0.6 | 34.0 | 0.268 |
| 5×95 | 19 | 0.7 | 0.6 | 38.0 | 0.193 |
| 5×120 | 24 | 0.9 | 0.6 | 42.0 | 0.153 |
| 5×150 | 30 | 0.9 | 0.6 | 46.0 | 0.124 |
4. 3+1 Core & 3+2 Core
| Cross section of conductor(mm²) | Conductor structure | Insulation Thickness(mm) | Copper sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 3×2.5+1×1.5 | 1 | 1.0 | 0.4 | 12.0 | 7.41 |
| 3×4+1×2.5 | 1 | 1.1 | 0.4 | 13.0 | 4.61 |
| 3×6+1×4 | 1 | 1.1 | 0.4 | 14.0 | 3.08 |
| 3×10+1×6 | 7 | 1.2 | 0.5 | 16.0 | 1.83 |
| 3×16+1×10 | 7 | 1.4 | 0.5 | 20.0 | 1.15 |
| 3×25+1×16 | 7 | 1.6 | 0.5 | 23.0 | 0.727 |
| 3×35+1×16 | 7 | 1.7 | 0.5 | 24.0 | 0.524 |
| 3×50+1×25 | 10 | 1.8 | 0.5 | 28.0 | 0.387 |
| 3×70+1×35 | 14 | 2.0 | 0.6 | 31.0 | 0.268 |
| 3×95+1×50 | 19 | 2.2 | 0.6 | 34.0 | 0.193 |
| 3×120+1×70 | 24 | 2.4 | 0.6 | 37.0 | 0.153 |
| 3×150+1×70 | 30 | 0.7 | 0.6 | 40.0 | 0.124 |
| 3×2.5+2×1.5 | 1 | 0.7 | 0.4 | 12.0 | 7.41 |
| 3×4+2×2.5 | 1 | 0.7 | 0.4 | 14.0 | 4.61 |
| 3×6+2×4 | 1 | 0.7 | 0.4 | 15.0 | 3.08 |
| 3×10+2×6 | 7 | 0.7 | 0.5 | 17.0 | 1.83 |
| 3×16+2×10 | 7 | 0.9 | 0.5 | 21.0 | 1.15 |
| 3×25+2×16 | 7 | 0.9 | 0.5 | 24.0 | 0.727 |
| 3×35+2×16 | 7 | 1.0 | 0.5 | 26.0 | 0.524 |
| 3×50+2×25 | 10 | 1.1 | 0.6 | 30.0 | 0.387 |
| 3×70+2×35 | 14 | 1.1 | 0.6 | 33.0 | 0.268 |
| 3×95+2×50 | 19 | 1.2 | 0.6 | 37.0 | 0.193 |
| 3×120+2×70 | 24 | 1.4 | 0.6 | 40.0 | 0.153 |
| 3×150+2×70 | 30 | 1.6 | 0.6 | 44.0 | 0.124 |
5. 4+1 Core
| Cross section of conductor(mm²) | Conductor structure | Insulation Thickness(mm) | Copper sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 4×2.5+1×1.5 | 1 | 1.7 | 0.4 | 13.0 | 7.41 |
| 4×4+1×2.5 | 1 | 1.8 | 0.4 | 14.0 | 4.61 |
| 4×6+1×4 | 1 | 2.0 | 0.4 | 15.0 | 3.08 |
| 4×10+1×6 | 7 | 2.2 | 0.5 | 18.0 | 1.83 |
| 4×16+1×10 | 7 | 2.4 | 0.5 | 21.0 | 1.15 |
| 4×25+1×16 | 7 | 0.7 | 0.5 | 25.0 | 0.727 |
| 4×35+1×16 | 7 | 0.7 | 0.6 | 29.0 | 0.524 |
| 4×50+1×25 | 10 | 0.7 | 0.6 | 32.0 | 0.387 |
| 4×70+1×35 | 14 | 0.7 | 0.6 | 34.0 | 0.268 |
| 4×95+1×50 | 19 | 0.7 | 0.6 | 38.0 | 0.193 |
| 4×120+1×70 | 24 | 0.9 | 0.6 | 41.0 | 0.153 |
| 4×150+1×70 | 30 | 0.9 | 0.6 | 45.0 | 0.124 |
According to national standards,fire-resistant wire and cable fire test method characteristic test,according to GB/12666.6 Class A,burn in fire with flame temperature 950℃,apply voltage of 750V between phase and phase and between phase and sheath,it should be able to withstand for 90min without breakdown.Class B,burn in fire with flame temperature 750-800℃,apply voltage of 750V between phase and phase and between phase and sheath,it should be able to withstand for 90min without breakdown.
According to the BS6387,flexible fireproof cable satisfies the following requirements:
Class A 650℃ 3h
Class B 750℃ 3h
Class C 950℃ 3h
Class S 950℃ 20min
JG/T 313-2014, BS 6387-2013
▼Ordering Options:
For prompt quotation / supplies please make sure your inquiries and your orders are securing the following data :
1 International or Special Standard. (Alternatively, the precise usage of the cable.)
2 Rated voltage.
3 Copper or Aluminium conductors.
4 Size of each conductor.
5 Insulation material : PVC XLPE or others.
6 Number and identification of conductors.
7 Other requirements.
8 Packing.
9 Required delivery time.
10 Required validity.
If this all seems a litle too technical for you, then why not get in touch with us.We look forward to assisting you in identifying the best products for your specific application and to answer any questions you might have.
▼ Company information:
30 years of experience in R & D, production and sales of wire and cable.
Invest 200 million to build a modern industrial park, covering an area of 65000 square meters.
Annual revenue is about 500 million US dollars.
CNAS laboratory, more than 100 testing reports.
Products are widely used in real estate, municipal, industrial support, mobile communications etc
