Self-supporting overhead cable bundle, NFA2X Cable

OVERVIEW

SPECIFICATIONS

CONSTRUCTION

PARAMETER

Application

Self-supporting overhead cable bundle, applied for electric power distribution in low voltage metropolitan, suburban and rural networks, for public lighting and house connections. Laid on pillars, consoles and house fronts.

Standards:

HRN HD 626 S1 / DIN VDE 0276 part 626

Technical data:

Temperature range: during installation: -5 °C
operating temperature: -30 °C up to +80 °C
at short circuit of max. 5 s: 130 °C
Nominal voltage: Uο/U = 0,6/1 kV
Test voltage: 4 kV
Minimal inner bending radius: 12D

Abbreviation

N - Standard Cable type
F - Facade Cable
A - Aluminium conductor
2X - XLPE insulation
+N - with 'Messenger' Core
Round stranded Conductor for all sizes connection derived from the distribution system.

Specifications

Low Voltage

construction

Phase Conductor:

round Al conductor, multi wire stranded compacted (RM), class 2 acc. to HRN HD 383, phase conductors are marked with longitudinal protrusions (one, two or three)

Neutral (supporting) conductor:

round conductor, multi wire stranded compacted (RM), class 2 acc. to HRN HD 383, of aluminium alloy

Insulation:

XLPE (cross-linked polyethylene, recent mark: PE-X) compound TIX-2 or TIX-5 acc. to HD 626 S1

insulation colour:

black

parameter

Phase conductors and neutral conductor

Bundle

Dimensions – nominal cross-section	Number of cores	External diameter of rope	External diameter of rope	Conductor resistance at 20 °C	Insulation thickness	Diameter with insulation	Diameter with insulation
		min.	max.	max.	approx.	min.	max.
mm²		mm	mm	Ω/km	mm	mm	mm
Phase conductor
16	7	4,6	5,1	1,910	1,2	7,0	7,8
25	7	5,8	6,3	1,200	1,4	8,6	9,4
35	7	6,8	7,3	0,868	1,6	10,0	10,9
50	7	7,9	8,4	0,641	1,6	11,1	12,0
70	19	9,7	10,2	0,443	1,8	13,3	14,2
Neutral conductor
71,5 AlMg 1	7	10,2	10,6	0,470	1,8		14,6
70 AlMgSi	7	10,0	10,2	0,500	1,6	12,9	13,6

Construction of bundle	Lay of stranding	Bundle diameter	Al weight	Bundle weight
N * mm²	mm	mm	kg/km	kg/km
2x16	300	15,0	93	137,000
4x16	350	18,0	186	270,000
2x25	350	18,4	145	214,000
4x25	430	22,2	290	431,000
3x25 + 70	700	26,6	421	569,000
3x25 + 70 + 1x16	700	26,6	467	672,000
3x25 + 70 + 2x16	700	29,6	513	739,000
3x35 + 70	760	29,8	509	688,000
3x35 + 70 + 1x16	760	29,8	555	759,000
3x35 + 70 + 2x16	760	29,8	602	825,000
3x50 + 70	850	33,1	639	809,000
3x50 + 70 + 1x16	850	33,1	685	879,000
3x50 + 70 + 2x16	850	33,1	732	945,000
3x70 + 70	980	38,6	813	1,044
3x70 + 70 + 1x16	980	38,6	860	1,114
3x70 + 70 + 2x16	980	38,6	907	1,181
3x70 + 70 + 2x25	980	38,6	958	1,253

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