1. Object This document defines the design and manufacturing characteristics of the cables type RHZ1-OL 12/20 kV Al+H16 manufactured by HuaTong Cables. 2. Design This type of cables is designed, manufactured and tested according to UNE-HD 620-10E and IEC 60502-2. 3. Applications Cables for fixed installations. Suitable for transport and distribution of electric power in medium voltage networks. Halogen-free. These cables are suitable for indoor, outdoor and buried installations. 4. Characteristics Nominal voltage: 12/20 (24) kV Minimum service temperature: -15 °C Maximum conductor temperature: 90 °C Maximum short-circuit temperature: 250 °C (maximum 5 s) Minimum bending radius: 15 x cable Ø Halogen-free: according to EN 50267 / IEC 60754 HCl content < 0,5 % pH > 4,3 conductivity < 10 μS/mm 5. General make-up of the cable 5.1 Conductor Electrolytic annealed aluminum conductor, class 2 according to EN 60228 / IEC 60228. Optionally, hygroscopic tapes can be applied to achieve longitudinal water-tightness on the conductor (cable type -2OL) 5.2 Inner semi-conducting screen Cross-linked semiconductor screen applied over the conductor in a triple-extrusion process. 5.3 Insulation Cross-linked polyethylene insulation, type DIX-3 according to HD 620-1 and type XLPE according to IEC 60502-2; natural color. Cross-linked in catenary line with nitrogen atmosphere. 5.4 Outer semi-conducting screen Cross-linked semiconductor screen applied over insulation in a triple-extrusion process. Strippable. Optionally, under customer requests, it can be supplied non-strippable (bonded to insulation). 5.5 Metalic screen The metallic screen made with Cu wires and Cu binder tape, applied over the outer semiconducting layer. 5.6 Water blocking The hygroscopic tape is applied over the metallic screen. 5.7 Outer sheath Polyolefine outer sheath, type DMZ1 according to HD 620-1 and type ST7 according to IEC 60502-2; red color. 6 Datasheet:
Cross-section
Screen
Conductor
Insulation
Outer
Weight
mm2
mm2
mm
mm
mm
KG/KM
1×50
16
8
20.2
27.9
770
1×70
16
10.1
22.3
30.4
905
1×95
16
11.3
23.5
31.5
1000
1×120
16
12.7
24.9
33.6
1140
1×150
16
14.2
26.4
35.1
1260
1×185
16
16
28.2
36.9
1405
1×240
16
18
30.2
39.4
1635
1×300
16
21
33.2
42.4
1865
1×400
16
23.4
36.4
45.6
2225
1×500
16
27
40.4
49.2
2585
1×630
16
31.5
44.5
53.7
3130
1×800
16
34
47
57.2
3775
1×1000
16
39
51.7
60.5
4450
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