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Home / Products / Fire Resistant Cables / Mineral Insulated Fire Resistant Cables / Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)
Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)
Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)
Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)
Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)

Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY)


Mold: NG-A(BTLY)

Mineral Insulated Fire Resistant Cable with Aluminum Sheath NG-A(BTLY) is a fire-resistant power cable designed for safe and stable operation under high-temperature conditions. It combines mineral insulation and aluminum sheath technology to provide reliable fire protection, mechanical strength, and long-term electrical performance.

Core Product Features
Extreme Fire Resistance: BS6387 CWZ tested, maintaining operation for 180 minutes under 950°C flame exposure with water spray and mechanical impact conditions.
Low Smoke and Halogen-Free Safety: Mineral insulation uses inorganic materials that produce no toxic smoke or acidic gases during fire.
Flexible Installation: Continuous production technology provides flexible cable lengths and smaller bending radius for easier installation.
Environmental Protection: Aluminum sheath structure offers moisture resistance, corrosion protection, and mechanical strength for harsh environments.
Long Service Life: Mineral insulation materials resist aging and decomposition, supporting a designed service life of over 50 years.

OEM Customization Options
Mineral Insulated Fire Resistant Cable supports customized solutions for different project requirements:
Structure Customization: Supports conductor specifications, insulation thickness, aluminum sheath structure, and cable configuration.
Appearance Customization: Supports cable printing, LOGO marking, and identification customization.
Length Customization: Supports cable length customization starting from 100 meters.
Packaging Customization: Provides packaging solutions based on transportation and storage needs.
Project Support: Offers batch production, technical documents, and specification matching services.

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Application Scenarios
Parameter Details
FAQ

Mineral Insulated Fire Resistant Cable is widely used in critical power systems requiring continuous operation during fire conditions:
High-Rise Buildings: Applied in emergency lighting, fire protection systems, and safety power circuits.
Hospitals and Public Facilities: Used for critical equipment power supply requiring high reliability.
Transportation Projects: Suitable for tunnels, airports, and infrastructure facilities.
Industrial Facilities: Applied in environments with strict fire safety requirements.

Model: NG-A(BTLY)
Specifications: 1×16–1×300 mm²
Single-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of Single-core Aluminium-sheathed, Continuously Extruded, Mineral-insulated Fire-resistant Cables

zyyuwqni1787542287 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
 1×16 5.0  7.7  10.2  1.4  16.5  457.7  1.15  10  92 
 1×25 6.0  8.7  11.2  1.4  17.5  568.4  0.727  10  120 
 1×35 7.1  9.8  12.3  1.4  18.7  692.4  0.524  10  150 
 1×50 8.3  11.4  13.9  1.5  20.4  882.5  0.387  10  180 
 1×70 10.0  13.1  15.6  1.6  22.2  1116.1  0.268  10  230 
 1×95 11.6  14.7  17.4  1.6  24.1  1410.0  0.193  10  285 
 1×120 12.7  16.2  18.9  1.7  25.7  1692.4  0.153  10  335 
 1×150 14.6  18.1  20.8  1.7  27.7  2026.3  0.124  10  385 
 1×185 16.2  19.7  22.4  1.8  29.4  2396.0  0.0991  10  450 
 1×240 18.5  22.5  25.2  1.9  32.4  2989.7  0.0754  10  535 
 1×300 20.7  24.7  27.6  1.9  35.0  3637.4  0.0601  10  620 
 1×400 23.5  27.5  30.4  2.0  38.0  4640.5  0.0470  10  720 

Model: NG-A(BTLY)
Specifications: 2×2.5–2×300 mm²
2-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 2-core Aluminium-sheathed, Continuously Extruded Mineral-Insulated Fire-Resistant Cable.

biaifqai1787542769 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-retardant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 lmdbtmrl1787542777 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Colour-coded insulation
5. Oxygen-barrier and fire-retardant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
2×2.5 1.75  6.8  9.3  1.7  15.8  342.7  7.41  10  33 
2×4 2.2  7.7  10.2  1.7  16.7  395.6  4.61  10  43 
2×6 2.7  8.7  11.2  1.7  17.7  460.0  3.08  10  55 
2×10 4.0  12.3  14.8  1.7  21.6  646.6  1.83  10  76 
2×16 5.0  14.3  16.8  1.7  23.6  814.6  1.15  10  97 
2×25 6.0  8.7  11.2  1.7  29.1  1467.0  0.727  10  130 
2×35 7.1  9.8  12.3  1.8  31.4  1798.5  0.524  10  160 
2×50 8.3  11.4  13.9  1.9  34.8  2314.2  0.387  10  195 
2×70 10.0  13.1  15.6  2.0  38.5  2947.4  0.268  10  245 
2×95 11.6  14.7  17.4  2.2  42.3  3733.2  0.193  10  305 
2×120 12.7  16.2  18.9  2.3  45.5  4478.0  0.153  10  355 
2×150 14.6  18.1  20.8  2.4  49.6  5399.6  0.124  10  405 
2×185 16.2  19.7  22.4  2.5  53.0  6369.8  0.0991  10  465 
2×240 18.5  22.5  25.2  2.7  59.0  7999.5  0.0754  10  545 
2×300 20.7  24.7  27.6  2.9  64.1  9715.0  0.0601  10  620 
2×400 23.5  27.5  30.4  3.1  70.1  12262.0  0.0470  10  695 

Multi-core cable specifications marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-2X150 is to be supplied as two.
NG-A(BTLY)-1X150 single-core cables, denoted as NG-A(BTLY)-2X(1X150).
The aluminium sheath may be used as an earth conductor, as its electrical resistance fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 3×2.5–3×300 mm²
3-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 3-core Aluminium-sheathed, Continuously Extruded, Mineral-Insulated Fire-Resistant Cable

djadkfze1787550596 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 mztmjjrt1787550674 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Colour-coded insulation
5. Oxygen-barrier and fire-retardant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
3×2.5 1.75  7.3  9.8  1.7  16.3  384.0  7.41  10  28 
3×4 2.2  8.2  10.7  1.7  17.2  451.9  4.61  10  37 
3×6 2.7  9.3  11.8  1.7  18.3  537.4  3.08  10  47 
3×10 4.0  13.2  15.7  1.7  22.5  776.6  1.83  10  65 
3×16 5.0  15.4  18.1  1.7  24.9  1024.3  1.15  10  84 
3×25 6.0  8.7  11.2  1.7  30.9  1776.8  0.727  10  110 
3×35 7.1  9.8  12.3  1.8  33.5  2202.6  0.524  10  135 
3×50 8.3  11.4  13.9  1.9  37.1  2862.4  0.387  10  170 
3×70 10.0  13.1  15.6  2.0  41.1  3678.4  0.268  10  215 
3×95 11.6  14.7  17.4  2.2  45.2  4700.9  0.193  10  265 
3×120 12.7  16.2  18.9  2.3  48.7  5676.5  0.153  10  310 
3×150 14.6  18.1  20.8  2.4  53.0  6864.6  0.124  10  350 
3×185 16.2  19.7  22.4  2.5  56.7  8143.6  0.0991  10  405 
3×240 18.5  22.5  25.2  2.7  63.2  10251  0.0754  10  480 
3×300 20.7  24.7  27.6  2.9  68.7  12506.4  0.0601  10  555 

Multi-core cables marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-3X150 is to be supplied as three.
NG-A(BTLY)-1X150 single-core cables, denoted as NG-A(BTLY)-3X(1×150).
The aluminium sheath may be used as an earth conductor, as its electrical resistance fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 4×2.5–4×300 mm²
4-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 4-core Aluminium-sheathed, Continuously Extruded Mineral-Insulated Fire-Resistant Cable.

naavrueb1787551103 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 bmywokwk1787551150 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Colour-coded separation sleeve
5. Oxygen-barrier and fire-retardant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
4×2.5 1.75  8.0  10.5  1.7  17.0  430.7  7.41  10  28 
4×4 2.2  9.1  11.6  1.7  18.1  517.2  4.61  10  37 
4×6 2.7  10.3  12.8  1.7  19.3  625.2  3.08  10  47 
4×10 4.0  14.6  17.3  1.7  24.1  939.5  1.83  10  65 
4×16 5.0  17.1  19.8  1.7  26.6  1237.6  1.15  10  84 
4×25 6.0  8.7  11.2  1.9  34.0  2216.4  0.727  10  110 
4×35 7.1  9.8  12.3  2.0  36.9  2761.6  0.524  10  135 
4×50 8.3  11.4  13.9  2.1  41.0  3606.0  0.387  10  170 
4×70 10.0  13.1  15.6  2.3  45.4  4653.0  0.268  10  215 
4×95 11.6  14.7  17.4  2.4  50.0  5969.0  0.193  10  265 
4×120 12.7  16.2  18.9  2.5  53.9  7227.3  0.153  10  310 
4×150 14.6  18.1  20.8  2.7  58.8  8753.6  0.124  10  350 
4×185 16.2  19.7  22.4  2.8  62.9  10406.7  0.0991  10  405 
4×240 18.5  22.5  25.2  3.1  70.1  13117.7  0.0754  10  480 

Multi-core cables marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-4X150 is to be supplied as four.
NG-A(BTLY)-1X150 single-core cables, denoted as NG-A(BTLY)-4X(1×150).
The aluminium sheath may be used as an earth conductor, as its electrical resistance fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 5×2.5–5×300 mm²
5-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 5-core Aluminium-sheathed, Continuously Extruded Mineral-Insulated Fire-Resistant Cable.

nzbogrfe1787551632 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 eivjznop1787551833 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Halogen-free filler strip
5. Colour-coded insulation
6. Oxygen-barrier fire-resistant layer
7. Wrapping tape
8. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
5×2.5 1.75  8.8  11.3  1.7  17.8  480.5  7.41  10  28 
5×4 2.2  10.0  12.5  1.7  19.0  584.9  4.61  10  37 
5×6 2.7  11.4  13.9  1.7  20.4  715.8  3.08  10  47 
5×10 4.0  16.2  18.9  1.7  25.7  1090.1  1.83  10  65 
5×16 5.0  19.0  21.7  1.8  28.7  1464.3  1.15  10  84 
5×25 6.0  8.7  11.2  2.0  37.5  2719.3  0.727  10  110 
5×35 7.1  9.8  12.3  2.1  40.6  3396.7  0.524  10  135 
5×50 8.3  11.4  13.9  2.3  45.2  4446.1  0.387  10  170 
5×70 10.0  13.1  15.6  2.4  50.1  5748.3  0.268  10  215 
5×95 11.6  14.7  17.4  2.6  55.3  7386.7  0.193  10  265 
5×120 12.7  16.2  18.9  2.7  59.7  8954.0  0.153  10  310 
5×150 14.6  18.1  20.8  2.9  65.1  10855.0  0.124  10  350 
5×185 16.2  19.7  22.4  3.0  69.8  12915.5  0.0991  10  405 

Multi-core cables marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-5X150 is to be supplied as five.
NG-A(BTLY)-1X150 single-core cables, denoted as NG-A(BTLY)-5X(1X150).
The aluminium sheath may be used as an earth conductor; the electrical resistance of the aluminium sheath fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 4×4+1×2.5 to 4×185+1×150 mm²
4+1-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 4+1-core Aluminium-sheathed, Continuously Extruded, Mineral-Insulated Fire-Resistant Cable

leoudkyo1787552307 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 fdrqnjtk1787552389 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Halogen-free filler strip
5. Colour-coded insulation
6. Oxygen-barrier fire-resistant layer
7. Wrapping tape
8. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor
4×4+1×25 2.2  1.75  9.8  12.3  1.7  18.8  564.0  4.61  7.41  10  37 
4×6+1×4 2.7  2.2  11.1  13.6  1.7  20.1  689.6  3.08  4.61  10  47 
4×10+1×6 4.0  2.7  15.3  18.0  1.7  24.8  1018.7  1.83  3.08  10  65 
4×16+1×10 5.0  4.0  18.4  21.1  1.8  28.1  1391.9  1.15  1.83  10  84 
4×25+1×16 6.0  5.0  8.7  7.7  11.2  10.2  2.0  36.9  2405.3  0.727  1.15  10  110 
4×35+1×25 7.1  6.0  9.8  8.7  12.3  11.2  2.1  39.4  2900.8  0.524  0.727  10  135 
4×50+1×25 8.3  6.0  11.4  8.7  13.9  11.2  2.2  43.7  3790.4  0.387  0.727  10  170 
4×70+1×35 10.0  7.1  13.1  9.8  15.6  12.3  2.4  48.2  4883.7  0.268  0.524  10  215 
4×95+1×50 11.6  8.3  14.7  11.4  17.4  13.9  2.5  53.3  6310.6  0.193  0.387  10  265 
4×120+1×70 12.7  10.0  16.2  13.1  18.9  15.6  2.7  57.8  7744.2  0.153  0.268  10  310 
4×150+1×70 14.6  10.0  18.1  13.1  20.8  15.6  2.8  62.1  9117.4  0.124  0.268  10  350 
4×185+1×95 16.2  11.6  19.7  14.7  22.4  17.4  2.9  66.9  10992.0  0.0991  0.193  10  405 

Multi-core cable specifications marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-4X150+1X70 is to be supplied as four
NG-A(BTLY)-1X150 and one NG-A(BTLY)-1X70 single-core cable, denoted as NG-A(BTLY)-4X(1X150)+1X(1X70).
The aluminium sheath may be used as an earth conductor, as its electrical resistance fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 3×4+1×2.5 to 3×300+1×150 mm²
3+1-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 3+1-core Aluminium-sheathed Continuously Extruded Mineral-Insulated Fire-Resistant Cable

nhmaqbpf1787552839 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 ibpvopsn1787552910 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Colour-coded insulation
5. Oxygen-barrier and fire-retardant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor
3×4+1×25 2.2  1.75  8.8  11.3  1.7  17.8  496.4  4.61  7.41  10  37 
3×6+1×4 2.7  2.2  10.0  12.5  1.7  19.0  599.2  3.08  4.61  10  47 
3×10+1×6 4.0  2.7  13.6  16.1  1.7  22.9  849.6  1.83  3.08  10  65 
3×16+1×10 5.0  4.0  16.5  19.2  1.8  26.1  1165.4  1.15  1.83  10  84 
3×25+1×16 6.0  5.0  8.7  7.7  11.2  10.2  1.9  33.5  1940.9  0.727  1.15  10  110 
3×35+1×25 7.1  6.0  9.8  8.7  12.3  11.2  1.9  35.6  2344.6  0.524  0.727  10  135 
3×50+1×25 8.3  6.0  11.4  8.7  13.9  11.2  2.1  39.3  3062.6  0.387  0.727  10  170 
3×70+1×35 10.0  7.1  13.1  9.8  15.6  12.3  2.2  43.3  3940.1  0.268  0.524  10  215 
3×95+1×50 11.6  8.3  14.7  11.4  17.4  13.9  2.3  47.9  5074.3  0.193  0.387  10  265 
3×120+1×70 12.7  10.0  16.2  13.1  18.9  15.6  2.5  51.9  6208.2  0.153  0.268  10  310 
3×150+1×70 14.6  10.0  18.1  13.1  20.8  15.6  2.6  55.6  7325.7  0.124  0.268  10  350 
3×185+1×95 16.2  11.6  19.7  14.7  22.4  17.4  2.7  59.8  8810.8  0.0991  0.193  10  405 
3×240+1×120 18.5  12.7  22.5  16.2  25.2  18.9  2.9  66.2  11054.0  0.0754  0.153  10  480 
3×300+1×150 20.7  14.6  24.7  18.1  27.6  20.8  3.1  72.1  13499.0  0.060  0.124  10  555 

Multi-core cable specifications marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-3X150+1X70 is to be supplied as three
NG-A(BTLY)-1×150 and one NG-A(BTLY)-1×70 single-core cable, denoted as NG-A(BTLY)-3×(1×150)+1×(1×70).
The aluminium sheath may be used as an earth conductor, as its electrical resistance fully complies with the requirements for earth conductors.

Model: NG-A(BTLY)
Specifications: 3×4+2×2.5–3×300+2×150 mm²
3+2-core cable
Voltage rating: 0.6/1 kV

Specifications and Structural Description of 3+2-core Aluminium-sheathed, Continuously Extruded Mineral-Insulated Fire-Resistant Cable.

eoxwnoyu1787553544 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Isolation sleeve
5. Oxygen-barrier and fire-resistant layer
6. Wrapping tape
7. Low-smoke, halogen-free, flame-retardant outer sheath		 fsmmpukz1787553629 1. Copper conductor
2. Mineral insulation
3. Metal sheath
4. Halogen-free filler strip
5. Colour-coded insulation
6. Oxygen-barrier fire-resistant layer
7. Wrapping tape
8. Low-smoke, halogen-free, flame-retardant outer sheath
2.5-16mm² 25 mm² and above

Number of cores × Cross-sectional area
 (mm²)		 Outer diameter of conductor
(mm)		 Outer diameter of mineral insulation
(mm)		 Outer diameter of metal sleeve
(mm)		 Outer sheath thickness
(mm)		 Cable reference outer diameter
(mm)		 Approximate weight of cable
(kg/km)		 DC resistance of a conductor at 20 °C
(Ω/km)		 20 °C Minimum insulation resistance
MΩ.km		 Cable current-carrying capacity in air at an ambient temperature of 40 °C A
Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor Phase conductor, neutral conductor
3×4+2×25 2.2  1.75  9.6  12.1  1.7  18.6  543.1  4.61  7.41  10  37 
3×6+2×4 2.7  2.2  10.8  13.3  1.7  19.8  663.5  3.08  4.61  10  47 
3×10+2×6 4.0  2.7  14.3  16.8  1.7  23.6  929.9  1.83  3.08  10  65 
3×16+2×10 5.0  4.0  17.9  20.6  1.7  27.5  1315.6  1.15  1.83  10  84 
3×25+2×16 6.0  5.0  8.7  7.7  11.2  10.2  2.0  36.3  2316.8  0.727  1.15  10  110 
3×35+2×25 7.1  6.0  9.8  8.7  12.3  11.2  2.0  38.2  2713.1  0.524  0.727  10  135 
3×50+2×25 8.3  6.0  11.4  8.7  13.9  11.2  2.2  42.1  3541.6  0.387  0.727  10  170 
3×70+2×35 10.0  7.1  13.1  9.8  15.6  12.3  2.3  46.3  4543.6  0.268  0.524  10  215 
3×95+2×50 11.6  8.3  14.7  11.4  17.4  13.9  2.4  51.3  5878.1  0.193  0.387  10  265 
3×120+2×70 12.7  10.0  16.2  13.1  18.9  15.6  2.6  55.9  7266.6  0.153  0.268  10  310 
3×150+2×70 14.6  10.0  18.1  13.1  20.8  15.6  2.7  59.1  8359.2  0.124  0.268  10  350 
3×185+2×95 16.2  11.6  19.7  14.7  22.4  17.4  2.9  64.0  10166.0  0.0991  0.193  10  405 
3×240+2×120 18.5  12.7  22.5  16.2  25.2  20.8  3.1  70.6  12693.0  0.0754  0.153  10  480 

Multi-core cable specifications marked with an asterisk (*) are supplied as single-core cables to facilitate installation and laying. For example, NG-A(BTLY)-3X150+2X70 is to be supplied as three
NG-A(BTLY)-1X150 and 2 strands of NG-A(BTLY)-1X70 single-core cables, denoted as NG-A(BTLY)-3X(1X150)+2X(1X70).
The aluminium sheath may be used as an earthing conductor, as its electrical resistance fully complies with the requirements for earthing conductors.

1. What is Mineral Insulated Cable used for?
Mineral Insulated Cable is used in fire safety power systems requiring continuous operation under high-temperature conditions.

2. What are the advantages of MI Cable?
MI Cable provides strong fire resistance, low smoke performance, and stable operation in demanding environments.

3. Why choose Aluminum Sheath Cable?
Aluminum Sheath Cable offers improved sealing, moisture resistance, corrosion protection, and mechanical strength.

4. Can the cable specifications be customized?
Yes. Custom options include conductor size, insulation structure, sheath configuration, length, printing, and packaging.

5. What is the delivery time for customized orders?
The production period is generally 20–40 days, depending on order quantity and customization requirements.

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Located in the coastal city of Taizhou and founded in 1983, HongSheng Wire And Cable Co., Ltd. is committed to the cutting-edge development of new wire and cable products. As a key enterprise of Zhejiang Province integrating industry, commerce, trade, production, academia, and research, the company is a trusted supplier to Sinopec, CNOOC, and the Shanghai World Expo, and maintains long-term cooperation with renowned research institutes and universities. Products can be designed and manufactured according to GB, IEC, BS, DIN, or custom specifications, and have been widely used in major projects both domestic and international.

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