What are Portuguese MV Power Cable designation?

2025-12-13

Different countries have their own cable nomenclature, generally with a combination of alphanumeric descriptions which together build up a designation which clearly defines the voltage rating and materials employed. Below are Medium Voltage cables esignation in Portugal.

X	Copper Conductor
LX	Aluminium Conductor
HI	Metallic Screen - Copper Tape
HIO	Metallic Screen - Copper Wires
R	Steel wire armour (for multi-core cables)
A	Steel tape armour (for multi-core cables)
1R / 1A	Aluminium armour/aluminum tape armour (for single core cables)
L	Longitudinal waterblocking tape
XS	3x1 core with messenger wire with XLPE sheath
E	Polyethylene (PE) Outer Sheath
V	Polyvinyl Chloride (PVC) Outer Sheath
Z1	Polyolefin Outer Sheath DMZ1 or DMZ2 for Low Smoke Halogen-free cables
(ce)	Longitudinal water tightness in conductor
(be)	Longitudinal water tightness in metallic screen
(cbe)	Longitudinal water tightness in conductor and metallic screen
flr	Minimum CPR Classification Eca
frt	Minimum CPR classification Cca s1b, d1, a1

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