NA2XY YJLV cable aluminum conductor single core

LOW VOLTAGE CABLE

NA2XY – YJLV (AL/XLPE/PVC) Single Core IEC 60502-1

NA2XY – YJLV Single Core is a 0.6/1 kV power cable with an aluminium conductor, cross-linked polyethylene (XLPE) insulation and a PVC outer sheath, built in accordance with IEC 60502-1. NA2XY is the German-style type code and YJLV the Chinese type code for the same construction: the letter A marks the aluminium conductor, 2X the XLPE insulation and Y the PVC sheath. With one core per cable and a light conductor, it suits large feeders and parallel low-voltage circuits in fixed installations.

Request Quote Download PDF

Each NA2XY – YJLV Single Core cable consists of one insulated aluminium conductor under an extruded PVC sheath, with no metallic screen or armour. The XLPE insulation permits a conductor temperature of 90 °C in continuous service. Compared with a copper cable of the same cross-section, the aluminium conductor makes the cable much lighter, which helps on long feeder runs and large sizes, at the cost of a higher conductor resistance.

Cable Construction

Conductor: Plain aluminium, stranded circular or compacted circular, in nominal cross-sections from 2.5 mm² to 630 mm²
Insulation: Extruded XLPE, with nominal thickness rising from 0.7 mm at 2.5 mm² to 2.4 mm at 630 mm² for the 0.6/1 kV rating (IEC 60502-1 Clause 6, Table 6)
Core arrangement: Single core, unscreened and unarmoured; the outer sheath is applied directly over the insulated conductor
Outer sheath material: Extruded PVC compound type ST2, the PVC grade rated for the 90 °C maximum conductor temperature (IEC 60502-1 Clause 13.2 and Table 4)
Sheath thickness: Nominal value calculated as 0.035D + 1.0 mm, where D is the fictitious diameter under the sheath, and never less than 1.4 mm for single-core cables (IEC 60502-1 Clause 13.3)
Sheath colour: Black unless another colour is agreed with the purchaser (IEC 60502-1 Clause 13.1)
Conductor resistance: Not above the maximum listed for its size in the TDS, measured at 20 °C and corrected to 1 km (IEC 60502-1 Clause 15.2)

Size Range at 0.6/1 kV

Parameter	Value
Rated voltage U0/U (Um)	0.6/1 (1.2) kV
Nominal cross-sections	1 × 2.5 mm² to 1 × 630 mm²
Nominal insulation thickness	0.7 mm to 2.4 mm
Nominal sheath thickness	1.4 mm to 2.2 mm
Approximate overall diameter	6 mm to 39.2 mm
Approximate aluminium cable weight	41 kg/km to 2292 kg/km

Insulation and sheath thicknesses are nominal values, against which measured thicknesses are assessed during testing. Overall diameters and weights are approximate values for cable routing, drum selection and freight planning, not inspection limits. The complete list for every cross-section, with the maximum conductor resistance at 20 °C, is given in the TDS tab.

Typical Applications

Power supply circuits in low-voltage installation systems
Industrial plants, where the cable can be buried if additional mechanical protection is provided
Fixed installation on cable trays, inside conduits or clipped to walls
Large single-core feeders in which several cables per phase are run in parallel and weight matters

NA2XY – YJLV Single Core is a 0.6/1 kV aluminium cable with XLPE insulation and a PVC oversheath, built to IEC 60502-1. The characteristics below are taken from the voltage, material, thickness and temperature requirements of that standard; dimensions, weights and conductor resistances for each size are listed in the TDS tab.

Technical Characteristics

Applicable Standard	IEC 60502-1
Standard Scope	Extruded-insulation power cables for fixed installations at rated voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV)
Rated Voltage U0/U (Um)	0.6/1 (1.2) kV
Number of Cores	1
Conductor	Plain aluminium, stranded circular or compacted circular
Nominal Cross-Section Range	2.5 mm² to 630 mm²
Conductor Resistance at 20 °C	Not exceeding the maximum listed for each size in the TDS
Insulation	XLPE (cross-linked polyethylene)
Insulation Thickness	Nominal values of IEC 60502-1 Table 6, 0.6/1 kV column
Outer Sheath	PVC (type ST2), black as standard
Sheath Thickness	Nominal 0.035D + 1.0 mm, minimum 1.4 mm for single-core cables
Maximum Conductor Temperature, Normal Operation	90 °C
Maximum Conductor Temperature, Short Circuit	250 °C, for a duration of not more than 5 s
Routine Test Voltage	3.5 kV a.c. for 5 min
Installation	Fixed: cable trays, conduits, wall fixing; buried with additional mechanical protection

Ordering Information

Please state the nominal cross-section, the total length and the length per drum, the sheath colour if other than black, any sheath marking text required, and whether purchaser inspection or witnessed tests are needed.

No. of Cores and Nominal Cross Section	Nominal Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx. Weight	Max. D.C. Resistance of Conductor at 20°C
No. × mm²	mm	mm	mm	kg/km	Ω/km
1×2.5	0.7	1.4	6.0	41	12.1
1×4	0.7	1.4	6.4	49	7.41
1×6	0.7	1.4	6.9	59	4.61
1×10	0.7	1.4	8.2	77	3.08
1×16	0.7	1.4	9.0	101	1.91
1×25	0.9	1.4	10.6	143	1.20
1×35	0.9	1.4	11.6	177	0.868
1×50	1.0	1.4	13.1	224	0.641
1×70	1.1	1.4	14.8	300	0.443
1×95	1.1	1.5	16.8	394	0.320
1×120	1.2	1.5	18.4	476	0.253
1×150	1.4	1.6	20.5	587	0.206
1×185	1.6	1.6	22.5	717	0.164
1×240	1.7	1.7	25.2	918	0.125
1×300	1.8	1.8	27.8	1130	0.100
1×400	2.0	1.9	31.2	1431	0.0778
1×500	2.2	2.0	34.7	1794	0.0605
1×630	2.4	2.2	39.2	2292	0.0469

Download Datasheet PDF

Electrical Tests

In accordance with IEC 60502-1 Clause 15.2, the d.c. resistance of the aluminium conductor is measured as a routine test and corrected to 20 °C and 1 km; the result does not exceed the maximum listed for its size in the TDS.
In accordance with IEC 60502-1 Clauses 15.3.2 and 15.3.4, the routine voltage test on this unscreened single-core cable is made either after 1 h of water immersion, applying 3.5 kV a.c. for 5 min between conductor and water, or as a spark test to IEC 62230.
In accordance with IEC 60502-1 Clause 17.2, insulation resistance is measured at ambient temperature as a type test.
In accordance with IEC 60502-1 Clause 17.3 and Table 13, insulation resistance measured at the maximum conductor temperature corresponds to an insulation resistance constant of at least 3.67 MΩ·km for XLPE.
In accordance with IEC 60502-1 Clause 17.4, a power-frequency voltage of 4 U0 is applied for 4 h as a type test without breakdown of the insulation.

Mechanical Tests

In accordance with IEC 60502-1 Clause 18.4 and Table 15, unaged XLPE insulation has a tensile strength of at least 12.5 N/mm² and an elongation at break of at least 200%, and after 168 h at 135 °C both properties vary by no more than ±25%.
In accordance with IEC 60502-1 Clause 18.5, the ST2 PVC sheath meets the tensile strength and elongation requirements of Table 18 before and after ageing.
In accordance with IEC 60502-1 Clause 18.6, pieces of completed cable are aged to confirm that insulation and sheath are not degraded by contact with other cable components.
In accordance with IEC 60502-1 Clause 18.9 and Table 19, the ST2 PVC sheath passes the low-temperature tests at −15 °C.

Physical and Material Tests

In accordance with IEC 60502-1 Clause 16.4, the aluminium conductor construction is checked by inspection and, where practicable, by measurement as a sample test.
In accordance with IEC 60502-1 Clause 16.5, the average insulation thickness is not below nominal and the smallest value is at least 0.9 times nominal minus 0.1 mm, while the smallest sheath thickness is at least 0.8 times nominal minus 0.2 mm.
In accordance with IEC 60502-1 Clause 16.9 and Table 17, the XLPE hot set test at 200 °C under 20 N/cm² gives an elongation under load of not more than 175% and a permanent elongation of not more than 15%.
In accordance with IEC 60502-1 Clauses 18.7, 18.8 and 18.10, the ST2 PVC sheath passes the loss of mass test, the pressure test at high temperature and the heat shock test at 150 °C for 1 h.
In accordance with IEC 60502-1 Clause 18.17 and Table 17, XLPE insulation shrinks by no more than 4% after 1 h at 130 °C.

Product Inquiry

Request a Quote

Please send your required cable designation, number of conductors, nominal cross-section, support cable type, rated voltage, packing length, and project standard.

Selected Product: NA2XY – YJLV (AL/XLPE/PVC) Single Core IEC 60502-1