PVC Insulated Steel Tape Armour Cable

PVC Insulated Steel Tape Armour Cable is a robust, heavy-duty electrical power cable designed for demanding industrial, commercial, and infrastructure applications where mechanical protection, durability, and reliability are paramount. This cable type features a specific construction that combines electrical performance with exceptional physical protection.

Cable Construction Specifications (IEC 60502-1 Standard)

Layer No.	Component	Material	Properties & Standards	Thickness/Dimensions
1	Conductor	Annealed Copper (Class 2) or Aluminum	IEC 60228, compact stranded	As per IEC 60228 (e.g., 16mm² to 400mm²)
2	Conductor Screen*	Semiconducting compound	IEC 60502 (for cables >3kV)	0.6mm – 1.0mm
3	Insulation	Flame-retardant PVC	IEC 60502, IEC 60811, 90°C rating	0.8mm (1.5-4mm²) to 2.6mm (300mm²+)
4	Insulation Screen*	Semiconducting compound	IEC 60502 (for cables >3kV)	0.6mm – 1.0mm
5	Bedding (Inner Sheath)	PVC compound	IEC 60502, 80°C rating	1.2mm – 2.0mm (based on overall diameter)
6	Armour	Galvanized steel tape	BS 5467, overlapped application	0.2mm – 0.3mm thickness, 25-30% overlap
7	Outer Sheath	UV-resistant PVC	IEC 60502, IEC 60754 (low smoke), IEC 61034 (low smoke emission)	1.8mm (small cables) to 3.0mm (large cables)

Dimensional Specifications by Conductor Size

Nominal Cross Section (mm²)	Conductor Diameter (mm)	Insulation Thickness (mm)	Bedding Thickness (mm)	Armor Thickness (mm)	Outer Sheath Thickness (mm)	Approx. Overall Diameter (mm)	Approx. Weight (kg/km)
2.5	1.8	0.8	1.2	0.2	1.8	11.5	240
4	2.3	0.8	1.2	0.2	1.8	12.5	285
6	2.8	0.8	1.2	0.2	1.8	13.5	335
10	3.6	1.0	1.2	0.2	1.8	15.0	420
16	4.5	1.0	1.4	0.2	2.0	17.0	570
25	5.6	1.2	1.4	0.2	2.0	19.5	780
35	6.7	1.2	1.4	0.2	2.0	21.5	980
50	8.0	1.4	1.6	0.2	2.2	24.0	1280
70	9.5	1.4	1.6	0.3	2.2	27.0	1750
95	11.0	1.6	1.8	0.3	2.4	30.0	2300
120	12.4	1.6	1.8	0.3	2.4	32.5	2850
150	13.8	1.8	1.8	0.3	2.6	35.0	3450
185	15.4	2.0	2.0	0.3	2.6	38.0	4200
240	17.5	2.2	2.0	0.3	2.8	42.0	5350
300	19.5	2.4	2.0	0.3	2.8	45.5	6600

Technical Performance Characteristics

Parameter	Value/Standard
Voltage Rating	600/1000V, 1.8/3kV, 3.6/6kV
Operating Temperature (Normal)	70°C
Short Circuit Temperature	160°C (max. 5 seconds)
Minimum Bending Radius	12× overall diameter (static), 15× overall diameter (dynamic)
Max. Pulling Tension	50N/mm² for copper, 30N/mm² for aluminum conductors
Fire Performance	IEC 60332-1-2 (flame retardant), IEC 60754-2 (low halogen acid gas emission)
Smoke Emission	IEC 61034 (≥60% light transmittance)
Lifetime Expectancy	25+ years under normal operating conditions

Note: Conductor and insulation screens are only applicable for cables rated above 3kV

Color Coding:

Conductors: Brown, Black, Grey (for 3-core); Green/Yellow for earth conductor
Outer Sheath: Standard black (custom colors available upon request)

This construction table provides comprehensive details for proper installation planning, technical specifications verification, and procurement documentation for PVC Insulated Steel Tape Armour Cable in industrial and infrastructure projects.

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