Page 130 - 3rd issue

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38 / 66 (72.5) kv inner semi -con lead sheathed screen

Single Core Copper Conductor cooper conductor outer semi-con
XLPE insulated,Lead Sheathed XLPE insulation
Screen and HDPE Sheathed

HDPE sheathing

Description Stranded circular compacted copper conductor, semi-conducting layer as conductor screen,
XLPE insulated, semi-conducting layer as non metalic insulation screen, Semi-conductive
water blocking tape to protect the screen area from longitudinal water penetration, lead
sheathed with suitable thickness to withstand then reqired earth fault current and HDPE
sheathed with graphite coating or extruded semi-conducting layer.
Cable are designed and tested to comply with IEC 60228, 60840 and 60811.

Cross Max. DC Conductor Inductance Approx.
Seational Resistance overall
Product-Code Operating Trefoil Flat diameter Approx.
Area DC at 20 OC AC at 90 OC Capacitance Weight

Constructional G25XA01BH mm2 (Ω/km) (Ω/km) (μf/km) (mh/km) (mh/km) mm kg/km
Data G26XA01BH 300 R 0.0601 0.0782 0.2241 0.3977 0.5363 57.5 8300
G27XA01BH 400 R 0.047 0.0621 0.2434 0.3814 0.52 60.4 9595
G28XA01BH 500 R 0.0366 0.0496 0.2669 0.3654 0.5041 63.7 11020
G29XA01BH 630 R 0.0283 0.0398 0.2924 0.351 0.4896 67.3 12690
800 R 0.0221 0.0329 0.3214 0.3372 0.4759 71.4 14935
M30XA01BH 1000 S
M31XA01BH 1200 S 0.0176 0.0236 0.3819 0.3247 0.4633 80.4 18480
0.0151 0.0207 0.4002 0.3188 0.4574 83 20100

Continous Current Ratings Load Factor = 100% for one circuit in
operation (Amperes)

Laying conditions: trefoil formation Laying condition: flat formation

Direct burial In air (shaded) In air (shaded)
Direct burial
Type of "Cross Type of "Cross
Earthing Sectional Earthing Sectional
Bonding Bonding Area"
System Area" System

Bonded at mm2 "pT=120 "pT=150 T = 30 ºC T = 40 ºC Cross or mm2 "pT=120 "pT=150 T = 30 ºC T = 40 ºC
both end T = 25 ºC" T = 35 ºC" single point T = 25 ºC" T = 35 ºC"
300 R 300 R
Cross or 400 R 532 445 761 686 bonding 400 R 562 472 875 791
single point 500 R 500 R
630 R 600 502 876 789 630 R 640 537 1016 918
bonding 800 R 800 R 730 611 1181 1067
1000 S 674 563 1007 908 1000 S 829 694 1369 1237
1200 S 1200 S
770 644 1171 1055

856 715 1334 1202 934 780 1580 1427

1022 852 1646 1483 1105 923 1927 1741

1095 913 1778 1602 1190 994 2088 1886

* R: Round Conductor
* S: Segmental Conductor

Member Pioneer Holding

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