AL/XLPE/CWS/LSZH

AL/XLPE/CWS/LSZH is a Layer-list designation (CU/XLPE/SWA/PVC style, IEC and BS practice) cable designation: AL = Aluminium Conductor; XLPE = Cross-Linked Polyethylene (XLPE); CWS = Copper Wire Screen (concentric copper wires); LSZH = Low Smoke Zero Halogen Compound.

1 coding system recognises this code

Layer-list designation (CU/XLPE/SWA/PVC style, IEC and BS practice)

Symbol	Meaning
`AL`	Aluminium Conductor
`XLPE`	Cross-Linked Polyethylene (XLPE)
`CWS`	Copper Wire Screen (concentric copper wires)
`LSZH`	Low Smoke Zero Halogen Compound

How to read a Layer-list designation (CU/XLPE/SWA/PVC style, IEC and BS practice) cable code

Fire behaviour (EU CPR)

Halogen-free compound (LSZH). Under the CPR this shows in the additional classes: acidity a1 to a3 (EN 60754-2) and smoke s1 to s3 (EN 50399; s1a and s1b add the 3 m cube test EN 61034-2). The main class, Aca to Fca, depends on the whole construction.
Typically targeted, as declared by makers for this kind of construction in the examples this site checked (not the class of this cable):
- B2ca-s1,d0,a1 1-CXKH-R-J, Kablo Vrchlabí
- Cca-s1b,d1,a1 FG16(O)M16, Nexans (La Triveneta Cavi)
- B2ca-s1a,d1,a1 FG18(O)M16, Nexans (La Triveneta Cavi)
- Dca FXQJ, Nexans Norway
- Cca-s1,d1,a1 H07Z1-K, Nexans Spain
- B2ca AXQJ-RMF, Prysmian Sweden (12/20 kV)
- Cca-s1b,d1,a1 RZ1FZ1-K (AS), Top Cable
- Cca-s1a,d1,a1 RZ1-K (AS), Top Cable (B2ca-s1a,d1,a1 for some sizes)
Listed as sources, alphabetically by maker. No maker pays to appear here.

A CPR class is declared by the maker in its Declaration of Performance and printed on the sheath (EN 50575 cl 7). This decoder does not assign one. What the CPR classes mean →

Sources: EN 13501-6 draft and FprEN 50575:2014 final draft (drafts, not the published texts); IEC 60332-3-24:2000+A1:2008; EN 13501-3 draft A2.

AL/XLPE/CWS/LSZH as the cable designer builds it, 3x95/25 12/20 kV

Overall diameter 63.3 mm, about 3,630 kg/km. Nominal values from the standard's tables for this size, computed, not a maker's data.

Layer	Material	Thickness, mm	Over the layer, mm
Conductor screen (semicon)	Semiconducting	0.60	12.7
Insulation	XLPE	5.5	23.7
Insulation screen (semicon)	Semiconducting	0.80	25.3
Filler	Semiconducting		54.5
Inner covering / bedding	Semiconducting	0.60	55.7
Wire screen	Copper	65 × 0.70	57.3
Sheath	Halogen-free (LSZH)	3.0	63.3

AL/XLPE/CWS/LSZH on a drum

The smallest drum that passes every check, for 63.3 mm and about 3,630 kg/km as the cable designer builds it. Drums as their makers print them; lengths are estimates within a few per cent of the cable makers' own tables: whole layers, wound diameter 1.05 × OD, 66 mm freeboard under the flange rim.

Length	Drum size (its makers)	Layers	Gross weight
500 m	KTG 28 (2800 mm flange), wood KTG drums (Europe), Bayka, KTG	5 of 6	2,990–3,055 kg
1,000 m	No single drum in KTG drums (Europe) takes it: the drum calculator splits it over several.

Barrel at least 20 × OD = 1,266 mm for a cable of this kind (Medium voltage, multi-core): KTG table, the cable's datasheet wins. A load rating is the drum maker's own.

Other lengths, drums and weights: the cable drum calculator

Load it on a truck: 1000 m on its drum in the loading planner

Laying, sizes and datasheet: AL/XLPE/CWS/LSZH

AL/XLPE/CWS/LSZH belongs to the family Medium voltage cables: the lowest laying temperature, bending radius, pulling, depth, drum handling and the test after laying, every rule with its sources. Laying and handling guide: Medium voltage cables

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