Armoured Medium Voltage Power Cables 3.8/6.6kV to 19/33kV to BS6622 Standard CU/XLPE/CTS/PVC/SWA/PVC

CONSTRUCTION:

1. Stranded compacted copper conductor class 2

2. Extruded semi-conductive conductor screen

3. XLPE insulation

4. Extruded semi-conductive insulation screen

5. Copper tape screen

6. PP Filling

7. Non-woven fabrics wrapping

8. PVC inner sheath

9. Steel wire armored

10. Non-woven fabrics wrapping

11. PVC outer sheath

APPLICATION

YJV32-Copper Conductor XLPE Insulated Steel Wire Armoured PVC Sheathed Power&Mains Cable.

Copper XLPE SWA Armoured Cable is suitable for using in power distribution networks or fixed installations for industrial equipments with rated voltage up to and including 1.8/3kV, 3.6/6kV, 6/10kV 8.7/15kV, 12/20kV, 21/35kV, 26/35kV.

CABLE STANDARDS

GB/T12706-2008,IEC,BS,VDE,ASTM and etc. upon request.

BASIC INFORMATION

Code Name

YJV32

Rated Voltage (Uo/U)

1.8/3kV, 3.6/6kV, 6/10kV 8.7/15kV, 12/20kV, 21/35kV, 26/35kV.

Cable Structure

Copper Conductor/XLPE Insulation/Steel Wire Armoured/PVC Sheath

CONSTRUCTION

Conductor

Number of conductors:1,3

The conductors shall comply with the requirement given in IEC

Insulation

XLPE(Cross-linked Polyethylene) according to IEC

Sheath

PVC(Polyaluminium Chloride) according to IEC

Metal screen

Copper Tape Screen

Armoured Layer

Steel Wire

CHARACTERISTICS

Conductor temperature

Maximum conductor temperature in normal use: 90℃

Max.short-circuit temperature

Maximum shall not exceed 250℃(5s Max,Duration)

Installation temperature

Ambient temperature under installation shall not be below 0℃

Minimum bending radius

The bending radius of cable: (D-Diameter of cable)

For Three Core Cable————————————-≥15D

For Single Core Cable————————————-≥20D

Description:

APPLICATIONS

The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 3.8/6.6KV to 19/33KV and frequency 50Hz.

They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.

STANDARD

BS 6622

BS 7835 (LSZH Version)

CONSTRUCTION

Conductor	Plain annealed copper or aluminium complying with IEC 60228/BS 6360. Copper conductors shall be stranded (class 2) and aluminium conductors shall be either solid or stranded (class 2).
Conductor Screen	Extruded layer of semi-conducting cross-linkable compound is applied over the conductor and shall cover the surface completely. The minimum thickness is 0.3mm and the maximum resistivity shall not exceed 500 Ohm-m at 90°C.
Insulation	Insulation is of cross-linked polyethylene compound XLPE (GP8) conforming to BS 7655-1.3 or EPR (GP7), conforming to BS 7655-1.2.

Table 1. Insulation Thickness

Nom. Cross Section Area	Insulation Thickness at Nominal Voltage
Nom. Cross Section Area	3.8/6.6KV (Um=7.2KV)	6.35/11KV (Um=12KV)	8.7/15KV (Um=17.5KV)	12.7/22KV (Um=24KV)	19/33KV (Um=36KV)
mm^2	mm	mm	mm	mm	mm
70 – 185	2.5	3.4	4.5	5.5	8.0
240	2.6	3.4	4.5	5.5	8.0
300	2.8	3.4	4.5	5.5	8.0
400	3.0	3.4	4.5	5.5	8.0
Above 500	3.2	3.4	4.5	5.5	8.0

Insulaton Screen

Extruded layer of semi-conducting cross-linkable compound is applied over the insulation. The extruded semi-conducting layer shall consist of bonded or cold strippable semi-conducting compound capable of removal for jointing or terminating. As an option, a semi-conducting tape may be applied over the extruded semi-conducting layer as a bedding for the metallic layer. The minimum thickness is 0.3 mm and the maximum resistivity is 500 Ohm-m at 90°C. The screen is tightly fitted to the insulation to exclude all air voids and can be easily hand stripped on site.

Metallic Layer

The metallic layer shall consist of either copper tapes or a concentric layer of copper wires or a combination of tapes and wires. The metallic layer provides an earth fault current path, capable of withstanding fault current to earth of 1000A for one second at maximum temperature 160°C. Copper wires are applied over the conducting water blocking layer with a minimum diameter of 0.5mm. And over the copper wires, copper tape with minimum thickness of 0.1mm can be applied helically with overlap. Total cross section of copper wire screen layer is shown in table 2.

Table 2. Minimum Total Cross Section of Copper Wire Screen & DC Resistance of the Screen

Nominal Cross-Section of Cables	Minimum Cross-Section of Copper Wire Screen	DC Resistance of the Copper Wire Screen at 20°C
mm^2	mm^2	Ω
up to 120	16	1.06
150-300	25	0.72
400-630	35	0.51

Separation Sheath (for armoured cable)	The separation sheath comprises a layer of extruded PVC, PE or LSZH. The nominal thickness is calculated by 0.02Du + 0.6mm where Du is the fictitious diameter under the sheath in mm. The nominal separation sheath thickness shall not be less than 1.2mm.
Armour (for armoured cable)	The armour consists of round aluminium wire with diameter specified as in Table 3.

Table 3. Armour Wire Diameter

Fictitious Diameter under the Armour		Armour Wire Diameter
mm		mm
>	<
	25	1.6
25	35	2.0
35	60	2.5
60	-	3.15

Over Sheath

Overall sheath comprises a layer of extruded either PVC type 9 conforming to BS 7665-4.2 or MDPE type TS2 conforming to BS 7655-10.1. LSZH can be offered as an option. The over sheath is normally black in colour. When a DC voltage test is to be performed on the over sheath, a semi-conducting layer such as graphite coating shall be applied over the surface of the extruded over sheath. The nominal over sheath thickness is calculated by 0.035+D where D is the diameter immediately under the over sheath in mm. For cables with the over sheath not applied over the armour, the nominal over sheath thickness shall not be less than 1.4mm. And for cables with over sheath applied over the armour, the nominal over sheath thickness shall not be less than 1.8mm.

PHYSICAL PROPERTIES

Operating Temperature	up to 90°C
Temperature Range	-5°C ( PVC or LSZH sheath ); -20°C ( PE sheath )
Short Circuit Temperature	250°C (short circuit duration up to 5 seconds)
Bending Radius	12 x OD

Table 4. Nominal /Operating /Test Voltages

Rated Voltage Uo/U	Operating Voltage (Um)	Testing Voltage (rms)
3.8/6.6KV	7.2KV	15KV
6.35/11KV	12KV	25.5KV
8.7/15KV	17.5KV	35KV
12.7/22KV	24KV	51KV
19/33KV	36KV	76KV

Single Core 3.8/6.6KV (Um=7.2KV)

Dimensional Data

Nom. Cross-Section Area		Unarmoured Cables					Aluminium Wire Armoured Cables
	Nom. Insulation Thickness	Copper Wire Screen Area	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight		Copper Tape Screen Area	Nom. Bedding Thickness	Nom. Armour Wire Diameter	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight
					Approx. Weight							CU	AL
					CU	AL						CU	AL
mm^2	mm	mm^2	mm	mm	kg/km		mm^2	mm	mm	mm	mm	kg/km
25	2.5	16	1.5	20.3	750	580	3.4	1.2	1.6	1.8	26.3	1150	1000
35	2.5	16	1.6	21.3	870	650	3.6	1.2	1.6	1.8	27.3	1250	1050
50	2.5	16	1.6	22.4	1090	770	3.9	1.2	1.6	1.8	28.4	1500	1190
70	2.5	16	1.7	24.2	1310	870	4.3	1.2	1.6	1.8	30.0	1740	1300
95	2.5	16	1.7	25.8	1560	960	4.7	1.2	1.6	1.9	31.8	2030	1430
120	2.5	16	1.8	27.4	1830	1070	5.0	1.2	1.6	1.9	33.2	2310	1550
150	2.5	25	1.8	29.1	2130	1190	5.3	1.2	1.6	2.0	35.1	2660	1720
185	2.5	25	1.9	30.8	2490	1320	5.8	1.2	2.0	2.0	37.4	3120	1950
240	2.6	25	1.9	33.5	3040	1520	6.3	1.2	2.0	2.1	40.3	3740	2200
300	2.8	25	2.0	36.1	3650	1770	7.0	1.2	2.0	2.2	42.9	4400	2520
400	3.0	35	2.2	40.6	4680	2170	7.7	1.2	2.0	2.3	47.2	5490	2960
500	3.2	35	2.3	43.6	5670	2570	8.5	1.3	2.5	2.5	51.6	6760	3660
630	3.2	35	2.4	48.8	6980	2990	9.5	1.4	2.5	2.6	57.0	8200	4160

Electrical Data

Nom. Cross-Section Area						Unarmoured Cables	Aluminium Wire Armoured Cables
	D C Resistance CU / AL	A C Resistance CU / AL	Short Circuit Rating of Conductor CU / AL1 sec	Capaci-tance	Charging Current	Short Circuit Rating of CopperWire Screen 1 sec	Short Circuit Rating ofCopper Tape Screen 1 sec	Reactance		Inductance		Impedance
								Trefoil	Flat spaced	Trefoil	Flat Spaced	Trefoil		Flat Spaced
								Trefoil	Flat spaced	Trefoil	Flat Spaced	CU	AL	CU	AL
mm^2	μΩ/m	μΩ/m	kA	pF/m	mA/m	kA	kA	μΩ/m	μΩ/m	nH/m	nH/m	μΩ/ m		μΩ/m
25	727/1200	927/1538	3.6/2.3	263	0.32	2.6	0.4	136	194	400	590	936	1544	952	1554
35	524/868	668/1113	5.0/3.2	291	0.35	2.6	0.5	127	185	390	580	679	1121	695	1131
50	387/641	494/822	6.8/4.4	321	0.39	2.6	0.5	121	179	380	570	511	834	527	844
70	268/443	343/568	9.8/6.3	371	0.45	2.6	0.6	115	173	370	550	364	583	386	597
95	193/320	248/410	13.3/8.5	417	0.50	2.6	0.6	110	168	350	540	272	427	300	446
120	153/253	196/325	17.2/11.0	459	0.55	2.6	0.7	107	165	340	520	225	345	257	367
150	124/206	159/265	21.2/13.5	494	0.59	4.3	0.7	103	161	330	510	193	287	229	313
185	99.1/164	128/211	26.6/17.0	543	0.65	4.3	0.8	100	158	320	500	165	237	206	267
240	75.4/125	98/161	34.9/22.3	583	0.70	4.3	0.9	97	155	310	490	140	191	185	226
300	60.1/100	80/130	43.8/28.0	602	0.72	4.3	1.0	95	153	300	490	126	163	174	203
400	47.0/77.8	64/102	57.3/36.6	627	0.75	5.8	1.1	92	150	290	480	113	141	164	184
500	36.6/60.5	51/81	72.3/46.2	654	0.79	5.8	1.2	90	149	290	470	105	124	158	171
630	28.3/46.9	42/64	91.2/58.3	726	0.87	5.8	1.3	87	145	280	460	97	110	151	160

Single Core 6.35/11KV (Um=12KV)

Dimensional Data

Nom. Cross-Section Area		Unarmoured Cables					Aluminium Wire Armoured Cables
	Nom. Insulation Thickness	Copper Wire Screen Area	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight		Copper Tape Screen Area	Nom. Bedding Thickness	Nom. Armour Wire Diameter	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight
					Approx. Weight							CU	AL
					CU	AL						CU	AL
mm^2	mm	mm^2	mm	mm	kg/km		mm^2	mm	mm	mm	mm	kg/km
25	3.4	16	1.5	22.1	960	740	3.8	1.2	1.6	1.8	28.1	1300	780
35	3.4	16	1.6	23.3	1060	790	4.1	1.2	1.6	1.8	29.1	1400	1180
50	3.4	16	1.7	24.4	1160	840	4.4	1.2	1.6	1.8	30.2	1600	1280
70	3.4	16	1.7	26.0	1370	930	4.7	1.2	1.6	1.9	32.0	1840	1400
95	3.4	16	1.8	27.8	1640	1040	5.2	1.2	1.6	1.9	33.6	2130	1530
120	3.4	16	1.8	29.2	1900	1140	5.5	1.2	1.6	2.0	35.2	2430	1670
150	3.4	25	1.9	31.1	2220	1280	5.8	1.2	1.6	2.1	37.9	2870	1930
185	3.4	25	1.9	32.6	2570	1410	6.2	1.2	2.0	2.1	39.4	3240	2080
240	3.4	25	2.0	35.3	3130	1610	6.8	1.2	2.0	2.2	42.1	3490	2330
300	3.4	25	2.1	37.5	3730	1850	7.3	1.2	2.0	2.2	44.1	4490	2560
400	3.4	35	2.2	41.4	4730	2200	8.0	1.2	2.0	2.4	48.2	5589	3040
500	3.4	35	2.3	44.0	5700	2600	8.6	1.3	2.5	2.5	52.0	6780	3680
630	3.4	35	2.4	49.2	7010	3020	9.5	1.4	2.5	2.6	57.4	8230	4200

Electrical Data

Nom. Cross-Section Area						Unarmoured Cables	Aluminium Wire Armoured Cables
	D C Resistance CU / AL	A C Resistance CU / AL	Short Circuit Rating ofConductor CU / AL1 sec	Capaci-tance	Charging Current	Short Circuit Rating ofCopper Wire Screen 1 sec	Short Circuit Rating ofCopperTape Screen 1 sec	Reactance		Inductance		Impedance
								Trefoil	Flat Spaced	Trefoil	Flat Spaced	Trefoil		Flat Spaced
								Trefoil	Flat Spaced	Trefoil	Flat Spaced	CU	AL	CU	AL
mm^2	μΩ/m	μΩ/m	kA	pF/m	mA/m	kA	kA	μΩ/m	μΩ/m	nH/m	nH/m	μΩ/m		μΩ/m
25	727/1200	927/1538	3.6/2.3	208	0.42	2.6	0.5	146	206	440	640	936	1544	952	1554
35	524/868	668/1113	5.0/3.2	229	0.46	2.6	0.6	138	201	440	640	679	1121	695	1131
50	387/641	494/822	6.8/4.4	252	0.50	2.6	0.6	132	195	420	620	511	834	527	844
70	268/443	343/568	9.8/6.3	288	0.58	2.6	0.7	122	188	390	600	364	583	386	597
95	193/320	248/410	13.3/8.5	323	0.65	2.6	0.7	122	182	390	580	272	427	300	446
120	153/253	196//325	17.2/11.0	353	0.71	2.6	0.8	116	172	370	550	225	345	257	367
150	124/206	159/265	21.2/13.5	380	0.76	4.3	0.8	110	166	350	530	193	287	229	313
185	99.1/164	128/211	26.6/17.0	416	0.83	4.3	0.9	107	166	340	530	165	237	206	267
240	75.4/125	98/161	34.9/22.3	460	0.92	4.3	0.9	104	163	330	520	140	191	185	226
300	60.1/100	80/130	43.8/28.0	506	1.01	4.3	1.0	100	157	320	500	126	163	174	203
400	47/77.8	64/102	57.3/36.6	561	1.12	5.8	1.1	94	154	300	490	113	141	164	184
500	36.6/60.5	51/81	72.3/46.2	619	1.24	5.8	1.2	91	151	290	480	105	124	158	171
630	28.3/46.9	42/64	91.2/58.3	698	1.37	5.8	1.3	91	148	290	470	97	110	151	160

Single Core 8.7/15KV (Um=17.5KV)

Dimensional Data

Nom. Cross-Section Area		Unarmoured Cables					Aluminium Wire Armoured Cables
	Nom. Insulation Thickness	Copper Wire Screen Area	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight		Copper Tape Screen Area	Nom. Bedding Thickness	Nom. Armour Wire Diameter	Nom. Sheath Thickness	Approx. Overall Diameter	Approx. Weight
	Nom. Insulation Thickness	Copper Wire Screen Area	Nom. Sheath Thickness	Approx. Overall Diameter	CU	AL	Copper Tape Screen Area	Nom. Bedding Thickness	Nom. Armour Wire Diameter	Nom. Sheath Thickness	Approx. Overall Diameter	CU	AL
mm^2	mm	mm^2	mm	mm	kg/km		mm^2	mm	mm	mm	mm	kg/km
25	4.5	16	1.6	23.7	940	820	4.4	1.2	1.6	1.8	30.3	1430	1210
35	4.5	16	1.7	24.9	1140	870	4.7	1.2	1.6	1.9	31.5	1630	1310
50	4.5	16	1.7	26.6	1240	920	4.9	1.2	1.6	1.9	32.6	1730	1410
70	4.5	16	1.8	28.4	1470	1030	5.3	1.2	1.6	1.9	34.2	1970	1520
95	4.5	16	1.9	30.2	1750	1160	5.7	1.2	2.0	2.0	36.8	2370	1770
120	4.5	16	1.9	31.6	2100	1250	6.1	1.2	2.0	2.1	38.4	2670	1910
150	4.5	25	2.0	33.5	2340	1400	6.4	1.2	2.0	2.1	40.1	3020	2080
185	4.5	25	2.0	35.0	2690	1520	6.8	1.2	2.0	2.2	41.8	3420	2240
240	4.5	25	2.1	36.8	3270	1740	7.4	1.2	2.0	2.3	44.5	4050	2500
300	4.5	25	2.2	39.9	3870	1990	7.9	1.2	2.0	2.3	46.5	4680	2780
400	4.5	35	2.3	43.8	4890	2370	8.5	1.3	2.5	2.5	51.8	5970	3430
500	4.5	35	2.4	46.4	5860	2760	9.2	1.3	2.5	2.6	54.4	7010	3910
630	4.5	35	2.5	51.6	7190	3190	10.0	1.4	2.5	2.7	59.8	8480	4420

Electrical Data

Nom. Cross-Section Area						Unarmoured Cables	Aluminium Wire Armoured Cables
	D C Resistance CU / AL	A C Resistance CU / AL	Short Circuit Rating of Conductor CU / AL1 sec	Capac-itance	Charging Current	Short Circuit Rating of Copper Wire Screen 1 sec	Short Circuit Rating of CopperTape Screen 1 sec	Reactance		Inductance		Impedance
								Trefoil	Flat Spaced	Trefoil	Flat Spaced	Trefoil		Flat Spaced
								Trefoil	Flat Spaced	Trefoil	Flat Spaced	CU	AL	CU	AL
mm^2	μΩ/m	μΩ/m	kA	pF/m	mA/m	kA	kA	μΩ/m	μΩ/m	nH/m	nH/m	μΩ/m		μΩ/m
25	727/1200	927/1538	3.6/2.3	171	0.47	2.6	0.6	154	217	480	680	936	1544	952	1554
35	524/868	668/1113	5.0/3.2	187	0.51	2.6	0.6	145	208	460	660	679	1121	695	1131
50	387/641	494/822	6.8/4.4	204	0.56	2.6	0.7	138	201	440	640	511	834	527	844
70	268/443	343/568	9.8/6.3	232	0.63	2.6	0.7	132	188	420	600	364	583	386	597
95	193/320	248/410	13.3/8.5	258	0.70	2.6	0.8	126	182	400	580	272	427	300	446
120	153/253	196/325	17.2/11.0	281	0.77	2.6	0.8	119	179	380	570	225	345	257	367
150	124/206	159/265	21.2/13.5	301	0.82	4.3	0.9	113	176	360	560	193	287	229	313
185	99.1/164	128/211	26.6/17.0	329	0.90	4.3	0.9	110	170	350	540	165	237	206	267
240	75.4/125	98/161	34.9/22.3	363	0.99	4.3	1.0	107	166	340	530	140	191	185	226
300	60.1/100	80/130	43.8/28.0	398	1.09	4.3	1.1	104	160	330	510	126	163	174	203
400	47/77.8	64/102	57.3/36.6	439	1.20	5.8	1.2	97	157	310	500	113	141	164	184
500	36.6/60.5	51/81	72.3/46.2	483	1.32	5.8	1.3	94	154	300	490	105	124	158	171
630	28.3/46.9	42/64	91.2/58.3	534	1.46	5.8	1.4	91	151	290	480	97	110	151	160

Company Information:

1. Our factory specialized in manufacturing power/mains cable & electrical wire more than 19 years.

2. Have Dezhou, Wuxi and Tengzhou 3 production bases and current employees more than 700 people.

3. Supply power/mains cable & electrical wire to South America(Brazil...), East Asia(Korea...), Africa(Uganda, South Africa, Zimbabwe...), Southeast Asia(Myanmar, Thailand, Indonesia, Philippines, Malaysia, Cambodia...), Europe(Czech republic...) to global market.

4. Had fixed partnership with SGCC&STATE GRID CORPORATION OF CHINA(China largest power enterprise) and many other our country State-owned big enterprise.

5. Good quality(ISO/CCC/IEC/BS/VDE standard) and competitive price.

6. Standard export packing(Steel Iron drum, No-fumigation Iron wooden drum and Wooden drum).

Contact:

Armoured Medium Voltage Power Cables 3.8/6.6kV to 19/33kV to BS6622 Standard CU/XLPE/CTS/PVC/SWA/PVC

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