Caledonian Medium Voltage Cables - BS 6622 Single Core Unarmoured (Copper Wire Screened) 6.6kV XLPE Stranded Aluminium Conductors

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BS 6622 Single Core Unarmoured (Copper Wire Screened) 6.6kV XLPE Stranded Aiuminium Conductors

Edilizia

cross-sectional area mmsq	Minimum average thickness of insulation mm	Nominal diameter over insulation mm	Nominal area of copperwire screen mmsq	Nominal average thickness of PVC oversheath mm	Nominal overall diameter of cable mm
70	2.5	16.8	16.0	1.7	23.5
95	2.5	18.5	16.0	1.7	25.4
120	2.5	20.0	16.0	1.8	26.9
150	2.5	21.3	16.0	1.8	28.5
185	2.5	23.1	16.0	1.9	30.3
240	2.6	25.5	25.0	1.9	32.9
300	2.8	28.3	25.0	2.0	35.9
400	3.0	31.4	35.0	2.2	39.2
500	3.2	34.7	35.0	2.6	42.8
630	3.2	38.6	35.0	3.1	47.0

Installation

cross-sectional area mmsq	Approximate cable weight kg/m	Nominal drum length m	Minimum bending radius mm	Nominal internal diameter of ducts mm
70	0.7	1000	400	100
95	0.8	1000	400	100
120	1.0	1000	450	100
150	1.1	500	450	100
185	1.3	500	500	100
240	1.5	500	500	100
300	1.7	500	550	100
400	2.2	500	600	100
500	2.6	500	650	100
630	3.1	300	750	100

Performance Elettrica

cross-sectional area mmsq	Maximum DC resistance of conductor at 20 ℃ uohms/m	Maximum AC resistance of conductor at 90 ℃ uohms/m	Reactance at 50Hz uohms/m	Impedance at 50Hz uohms/m	Maximum Capacitace PF/m	Maximum charging current at normal voltage and frequency mA/m
70	443	568	111	580	371	0.45
95	320	410	109	424	417	0.50
120	253	325	105	342	459	0.55
150	206	265	103	284	494	0.59
185	164	211	99.5	233	543	0.65
240	125	161	96.6	188	583	0.70
300	100	130	94.7	161	602	0.72
400	77.8	102	92.5	138	627	0.75
500	60.5	81.0	90.7	122	654	0.79
630	46.9	64.0	87.6	109	737	0.87

Ratings

Cross-sectional area mmsq	Current Ratings			Short circuit ratings
Cross-sectional area mmsq	Laid direct in ground Amps	Drawn into ducts Amps	Laid in air Amps	One second short circuit rating of conductor KA	One second short circuit rating of copper per core KA
70	210	215	240	6.3	2.6
95	250	255	300	8.5	2.6
120	280	285	335	11.0	2.6
150	320	315	380	13.5	2.6
185	360	350	435	17.0	2.6
240	415	405	510	22.3	4.3
300	475	455	600	28.0	4.3
400	540	510	700	36.6	5.8
500	610	570	810	46.2	5.8
630	680	640	930	58.3	5.8