Page 129 - 3rd issue

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38 / 66 (72.5) kv inner semi -con copper wire screen

Single Core Copper Conductor cooper conductor outer semi-con
XLPE insulated, Copper Wire XLPE insulation water blocking tape
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 copper wire as metalic insulation screen to withstand the requierd earth
fault current, non-conductive water blocking tape to protect the screen area from longitudinal
water perettation. copolymer aluminium tape to protect the cable from radial water penetrafion
and HDPE sheathed with graphite coating or extruded semi-conducting layer Cabels 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 G25XA01PH mm2 (Ω/km) (Ω/km) (μf/km) (mh/km) (mh/km) mm kg/km
300 R 0.0601 0.0782 0.2241 0.4029 0.5415 59 5460

Data G26XA01PH 400 R 0.047 0.062 0.2434 0.3857 0.5243 61.7 6360
G27XA01PH 500 R 0.0366 0.0495 0.2669 0.3695 0.5081 65 7530

G28XA01PH 630 R 0.0283 0.0398 0.2924 0.3548 0.4934 68.6 8920

G29XA01PH 800 R 0.0221 0.0329 0.3214 0.3409 0.4795 72.7 10840

M30XA01PH 1000 S 0.0176 0.0236 0.3819 0.3279 0.4666 81.7 13680

M31XA01PH 1200 S 0.0151 0.0207 0.4002 0.3219 0.4605 84.3 15100

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 "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
Cross or 300 R 514 430 738 665 bonding 400 R 561 471 871 787
single point 400 R 500 R
500 R 577 482 845 761 630 R 639 536 1010 913
bonding 630 R 800 R
800 R 643 538 966 871 1000 S 729 611 1175 1061
1000 S 1200 S
1200 S 774 647 1168 1052 829 694 1363 1232

863 720 1332 1199 935 782 1573 1421

1040 868 1658 1494 1112 929 1926 1740

1119 933 1797 1618 1200 1002 2095 1893

* R: Round Conductor
* S: Segmental Conductor

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