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BS Standard MV Cables

BS 6622 6.35/11(12)kV Medium Voltage Power Cables

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Product Details

Product parameter

Application

Medium voltage power cables are suitable for power networks,underground and in cable ducting.They can be buried directly.

Performance

Voltage rating U0/U(Um):
6.35/11(12)kV

Chemical performance:
chemical, UV&oil resistance

Mechanical performance(minimum bending Radius):
-single core unarmoured cable:20 x overall diameter
-single core AWA or aluminum tape armoured cable:15 x overall diameter
- three core unarmoured cable:15 x overall diameter
- three core SWA or STA armoured cable:12 x overall diameter

Thermal performance :
-Maximum operating temperature:90℃
-Maximum short-circuit temperature: 250℃(Max.5s)
-Minimum service temperature：-10℃

Fire performance:
-Flame retardant according to IEC/EN 60332-1-2 standard
-Reduced emission of halogens chlorine <15%

Construction

Conductor:
stranded compacted copper or aluminum conductor , class 2.

Conductor Screen:
Semi-conductive conductor screen.

Insulation:
XLPE (cross-linked polyethylene)
-alternative:EPR (Ethylene Propylene Rubber)

Insulation Screen:
Semi-conductive insulation screen.

Metallic Screen:
individual concentric copper wires and/or copper tape.

Filler:
PET(polyethylene terephthalate) fibres

Binding Tape:
polyester tape or non-woven fabric

Optional Inner Sheath:
PVC(Polyvinyl chloride)
-alternative: LSZH (Low Smoke Zero Halogen)

Optional Armour:
Single-core conductor: AWA (Aluminum Wire Armoring ) or aluminum tape
Three-core conductor: SWA (Steel Wire Armoring ) or galvanized steel tape(single or double layer flat or corrugated)

Outer Sheath:
PVC (polyvinyl chloride)
-alternative :LDPE, MDPE (Low/Medium Density Polyethylene)
-alternative: LSZH (Low Smoke Zero Halogen)

Conductor Shape:
-Single Core:circular, circular compacted
-Three Core:circular, circular compacted, sectorial

Core Identification:
Single Core: Red or black
Three Core: Red , yellow and blue

Sheath Colour:
red, black or other available colour in accord with the request

BS 6622 6.3511(14)kV Medium Voltage Power Cables

6.35/11(12)kV Three Core Aluminium Conductors XLPE Insulated to BS 6622 Steel Tape Armoured
1.Aluminium Conductor
2.Semi-conductive conductor screen
3.XLPE Insulation
4.Semi-conductive insulation screen
5.Copper tape screen
6.Fillers
7.Tape binder
8.Bedding
9.Galvanised steel tape armour
10.Outer sheath

BS 6622 6.3511(15)kV Medium Voltage Power Cables

6.35/11(12)kV Three Core Copper Conductors XLPE Insulated to BS 6622 Steel Tape Armoured
1. Copper Conductor
2.Semi-conductive conductor screen
3.XLPE Insulation
4.Semi-conductive insulation screen
5.Copper tape screen
6.Fillers
7.Tape binder
8.Bedding
9.Galvanised steel tape armour
10. Outer sheath

Cable Marking and Packing Materials

Cable Marking:
printing, embossing ,engraving

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

Standards

-BS 6622, IEC/EN 60228, IEC 60502-2

BS 6622 6.35/11(12)kV Medium Voltage Power Cables Physical Performance Parameters

No.of Cores -	Nominal Section Area	Minimum Number of Individual Wires in Conductor						Nominal Thickness of Insulation	Nominal Thickness of Outer Sheath	Nominal Overall Diameter	Nominal Weight
		circular		circular compact		shaped					Nominal Weight
		Cu	Al	Cu	Al	Cu	Al				Cu	Al
-	mm²	-	-	-	-	-	-	mm	mm	mm	kg/km	kg/km
1	50	19	19	6	6	6	6	3.40	1.70	23.00	860	590
1	70	19	19	12	12	12	12	3.40	1.70	25.00	1100	690
1	95	19	19	15	15	15	15	3.40	1.80	27.00	1390	820
1	120	37	37	18	15	18	15	3.40	1.80	29.00	1650	930
1	150	37	37	18	15	18	15	3.40	1.90	30.00	1940	1050
1	185	37	37	30	30	30	30	3.40	1.90	32.00	2310	1210
1	240	37	37	34	30	34	30	3.40	2.00	34.00	2900	1440
1	300	61	61	34	30	34	30	3.40	2.10	36.00	3520	1690
1	400	61	61	53	53	53	53	3.40	2.20	40.00	4370	2020
1	500	61	61	53	53	53	53	3.40	2.30	43.00	5450	2420
1	630	91	91	53	53	53	53	3.40	2.40	47.00	6850	2940
1	800	91	91	53	53	-	-	3.40	2.50	51.00	8950	3670
1	1000	91	91	53	53	-	-	3.40	2.60	56.00	10590	4410
3	35	7	7	6	6	6	6	3.40	2.50	52.00	4590	3950
3	50	19	19	6	6	6	6	3.40	2.60	54.00	5180	4400
3	70	19	19	12	12	12	12	3.40	2.70	58.00	6120	4930
3	95	19	19	15	15	15	15	3.40	2.80	63.00	7310	5600
3	120	37	37	18	15	18	15	3.40	3.00	67.00	8410	6220
3	150	37	37	18	15	18	15	3.40	3.10	70.00	9420	6710
3	185	37	37	30	30	30	30	3.40	3.20	74.00	10860	7570
3	240	37	37	34	30	34	30	3.40	3.40	81.00	13990	9560
3	300	61	61	34	30	34	30	3.40	3.60	86.00	16290	10850

Physical and Electrical Performance Parameters

No.of Cores	Nominal Section Area	Nominal Diameter of Conductor	Nominal Thickness of Insulation	Max. Resistance of Conductor				Approx.Short Circuit Current
				D.C. at 20℃		A.C. at 90℃		Conductor(1s)		Copper Wire Screen(1s)
				Copper	Aluminum	Copper	Aluminum	Copper	Aluminum	Unarmored	AWA
-	mm²	mm	mm	Ω/km	Ω/km	Ω/km	Ω/km	kA	kA	kA	kA
1	35	7.1	3.4	0.524	-	0.668	-	5.0	-	1.96	-
1	50	8.3	3.4	0.387	0.641	0.494	0.822	7.2	4.7	1.96	2.39
1	70	9.7	3.4	0.268	0.443	0.342	0.568	10.0	6.6	1.96	2.39
1	95	11.5	3.4	0.193	0.320	0.247	0.411	13.6	9.0	1.96	2.39
1	120	12.9	3.4	0.153	0.253	0.196	0.325	17.2	11.3	1.96	2.39
1	150	14.3	3.4	0.124	0.206	0.159	0.265	21.5	14.2	3.1	3.7
1	185	15.9	3.4	0.0991	0.164	0.128	0.211	26.5	17.5	3.1	3.7
1	240	18.3	3.4	0.0754	0.125	0.0984	0.162	34.3	22.7	3.1	3.7
1	300	20.6	3.4	0.0601	0.100	0.0796	0.130	42.9	28.3	3.1	3.7
1	400	23.5	3.4	0.0470	0.0778	0.0631	0.102	57.2	37.8	4.33	5.18
1	500	26.6	3.4	0.0366	0.0605	0.0508	0.0802	71.5	47.2	4.33	5.18
1	630	30.4	3.4	0.0283	0.0469	0.0434	0.0651	90.1	59.0	4.33	5.18
3	35	7.1	3.4	0.524	-	0.669	-	5.0	-	1.96	-
3	50	8.3	3.4	0.387	-	0.494	-	7.15	-	1.96	-
3	70	9.7	3.4	0.268	0.443	0.344	0.569	10.01	6.56	1.96	1.96
3	95	11.5	3.4	0.193	0.320	0.247	0.411	13.59	8.90	1.96	1.96
3	120	12.9	3.4	0.153	0.253	0.196	0.325	17.16	11.24	1.96	1.96
3	150	14.3	3.4	0.124	0.206	0.161	0.265	21.45	14.06	3.1	3.1
3	185	15.9	3.4	0.0991	0.164	0.129	0.212	26.46	17.33	3.1	3.1
3	240	18.3	3.4	0.0754	0.125	0.099	0.163	34.32	22.49	3.1	3.1
3	300	20.6	3.4	0.0601	0.100	0.0815	0.131	42.90	28.11	3.1	3.1
3	400	23.5	3.4	0.0470	0.0778	0.0660	0.103	57.20	37.48	4.33	4.33

Electrical Performance Parameters(copper conductor)

No.of Cores	Nominal Section Area	Max.D.C. Resistance of Conductor at 20℃	Continuous Current Rating
			in ground		in duct		in air
			flat	trefoil	flat	trefoil	flat	trefoil
-	mm²	Ω/km	amp	amp	amp	amp	amp	amp
1	50	0.387	220	230	220	220	250	300
1	70	0.268	270	280	260	270	310	370
1	95	0.193	320	335	305	325	375	460
1	120	0.153	360	380	340	370	430	530
1	150	0.124	410	430	375	410	490	600
1	185	0.0991	455	485	410	460	550	690
1	240	0.0754	520	560	470	540	650	820
1	300	0.0601	580	640	500	610	740	940
1	400	0.047	650	730	530	690	840	1100
1	500	0.0366	710	830	570	780	930	1280
1	630	0.0283	760	940	620	890	1040	1480
1	800	0.0221	810	1060	660	990	1140	1690
1	1000	0.0176	860	1170	690	1090	1230	1900
3	35	0.524	170	170	150	150	175	175
3	50	0.387	210	210	180	180	220	220
3	70	0.268	250	250	215	215	270	270
3	95	0.193	300	300	255	255	330	330
3	120	0.153	340	340	290	290	380	380
3	150	0.124	380	380	330	330	430	430
3	185	0.0991	430	430	370	370	490	490
3	240	0.0754	500	500	430	430	570	570
3	300	0.0601	540	540	470	470	650	650