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BS Standard MV Cables

BS 6622 3.8/6.6(7.2)kV XLPE MV Cable Armored Wire

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Product Details

Product parameter

Application

XLPE MV Cable is called Medium voltage copper conductor armoured power distribution cables, which are suitable for external and direct burial applications in power networks,underground and in cable ducting.

Performance

Voltage rating U0/U(Um):
3.8/6.6(7.2)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 3.86.6(7.2)kV XLPE MV Cable Armored Wire (3)

3.8/6.6(7.2)kV Three Core Aluminium Conductors XLPE Insulated to BS 6622 Standard 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 3.86.6(7.2)kV XLPE MV Cable Armored Wire (4)

3.8/6.6(7.2)kV Three Core Copper Conductors XLPE Insulated to BS 6622 Standard Aluminium Wire Armoured
1.Copper Conductor
2.Semi-conductive conductor screen
3.DFITM XLPE Insulation
4.Semi-conductive insulation screen
5.Copper tape screen
6.Fillers
7.Tape binder
8.Bedding
9.Galvanised steel wire 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 Standard 3.8/6.6(7.2)kV XLPE MV Cable Armored Wire 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	Copper	Aluminum
-	mm²	mm	mm	Ω/km	Ω/km	Ω/km	Ω/km	kA	kA	kA	kA
1	35	7.1	2.5	0.524	-	0.668	-	5.0	-	1.96	-
1	50	8.3	2.5	0.387	0.641	0.494	0.822	7.2	4.7	1.96	1.96
1	70	9.7	2.5	0.268	0.443	0.342	0.568	10.0	6.6	1.96	1.96
1	95	11.5	2.5	0.193	0.320	0.247	0.411	13.6	9.0	1.96	1.96
1	120	12.9	2.5	0.153	0.253	0.196	0.325	17.2	11.3	1.96	1.96
1	150	14.3	2.5	0.124	0.206	0.159	0.265	21.5	14.2	3.1	3.1
1	185	15.9	2.5	0.0991	0.164	0.128	0.211	26.5	17.5	3.1	3.1
1	240	18.3	2.6	0.0754	0.125	0.0984	0.162	34.3	22.7	3.1	3.1
1	300	20.6	2.8	0.0601	0.100	0.0796	0.130	42.9	28.3	3.1	3.1
1	400	23.5	3.0	0.0470	0.0778	0.0631	0.102	57.2	37.8	4.33	4.33
1	500	26.6	3.2	0.0366	0.0605	0.0508	0.0802	71.5	47.2	4.33	4.33
1	630	30.4	3.2	0.0283	0.0469	0.0434	0.0651	90.1	59.0	4.33	4.33
3	35	7.1	2.5	0.524	-	0.668	-	5.0	-	1.96	-
3	50	8.3	2.5	0.387	0.641	0.494	0.822	7.2	4.7	1.96	1.96
3	70	9.7	2.5	0.268	0.443	0.342	0.568	10.0	6.6	1.96	1.96
3	95	11.5	2.5	0.193	0.320	0.247	0.411	13.6	9.0	1.96	1.96
3	120	12.9	2.5	0.153	0.253	0.196	0.325	17.2	11.3	1.96	1.96
3	150	14.3	2.5	0.124	0.206	0.159	0.265	21.5	14.2	3.1	3.1
3	185	15.9	2.5	0.0991	0.164	0.128	0.211	26.5	17.5	3.1	3.1
3	240	18.3	2.6	0.0754	0.125	0.0984	0.162	34.3	22.7	3.1	3.1
3	300	20.6	2.8	0.0601	0.100	0.0796	0.130	42.9	28.3	3.1	3.1
3	400	23.5	3.0	0.0470	0.0778	0.0631	0.102	57.2	37.8	4.33	4.33

Electrical Performance Parameters（copper conductor）

No.of Cores	Nominal Section Area	Operating Inductance		Operating Capacity	Current Carrying Capacity
		Operating Inductance			in ground at 20℃		in air at 30℃
		flat	trefoil		flat	trefoil	flat	trefoil
-	mm²	mH/km	mH/km	uF/km	amp	amp	amp	amp
1	35	0.748	0.401	0.266	201	191	238	199
1	50	0.719	0.381	0.297	241	227	285	241
1	70	0.684	0.357	0.339	301	277	356	301
1	95	0.659	0.342	0.381	364	331	435	365
1	120	0.636	0.327	0.416	424	379	496	419
1	150	0.620	0.319	0.454	479	422	554	479
1	185	0.602	0.310	0.495	549	476	637	543
1	240	0.579	0.300	0.556	595	550	746	640
1	300	0.562	0.295	0.617	626	591	831	722
1	400	0.543	0.290	0.681	675	662	920	827
1	500	0.525	0.283	0.758	748	744	1043	949
1	630	0.507	0.276	0.853	981	856	1180	1076
3	50		0.33	0.30		208		196
3	70		0.31	0.35		255		249
3	95		0.29	0.39		307		307
3	120		0.28	0.43		353		353
3	150		0.28	0.47		396		406
3	185		0.27	0.51		447		464
3	240		0.26	0.55		523		548
3	300		0.26	0.57		581		632
3	400		0.26	0.59		653		726