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BS Standard Concentric Cables

BS 7870 Copper PVC Straight Concentric Cable

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Product Details

Product parameter

Application

Straight Concentric Copper PVC Cable is Straight Concentric cable is typically utilized as an energy supply cable and is most frequently found in regions that need mechanical protection, such as panel boards, street lighting, and power station distribution.

Performance

Electrical performance U0/U:
0.6/1kV

Mechanical performance:
minimum bending radius:8 x overall diameter

Terminal performance:
-Maximum service temperature:70℃
-Minimum service temperature：-15℃

Fire performance:
-Flame Retardant according to IEC/EN 60332-1-2 Standard

Construction

Conductor:
Class 2 copper

Insulation:
Cross-linked polyethylene Insulation

Concentric Neutral / Earth Conductor:
One layer of plain copper wires

Sheath:
Polyvinyl Chloride Sheath

Sheath Colour:
black color

Cable Marking and Packing Materials

Cable Marking:
printing, embossing, engraving

Packing Materials:
wooden drum, steel drum, steel-wooden drum

Specifications

-BS 7870-3-21, EN 60228 Standard

Physical Performance Parameters

NO. OF CORES	NOMINAL CROSS SECTIONAL AREA	NOMINAL OVERALL DIAMETER	MAXIMUM DC RESISTANCE OF CONDUCTOR AT 20°C	MAXIMUM DC RESISTANCE OF CONCENTRIC CONDUCTOR AT 20°C
	mm²	mm	ohms/km	ohms/km
1	4	8.5	4.61	4.8
1	16	12	1.15	1.2
1	25	14	0.727	0.76

Electrical Performance Parameters

NO. OF CORES	NOMINAL CROSS SECTIONAL AREA	CURRENT CARRYING CAPACITY
NO. OF CORES	NOMINAL CROSS SECTIONAL AREA	In Air	Clipped Direct	Enclosed in Conduit on a Wall
-	mm2	Amps	Amps	Amps
1	4	42	41	37
1	16	100	99	88
1	25	135	130	117
Note: Conductor Operating Temperature: 90°C Ambient Temperature: 30°C