Connecting; General Information About Power Cables - Siemens SICHARGE UC 150 Operating Instructions Manual

Connecting

6.1

General information about power cables

Cable designation and classes
Flexibility is a design feature of a cable. This flexibility primarily depends on the number of
conductors inside the cable.
Cable classes acc. to IEC 60228:
①
②
③
④
Figure 6-1 Cable classes
Class 1 and class 2 cables are rigid cables with a single strand or multiple strands. They are
used mainly for smaller cable bending radii and fixed or rigid components.
Flexible class 5 and class 6 cables allow for larger cable bending radii.
Low-voltage power distribution uses mainly cables of class 1, class 2, class 5, and class 6.
Single-strand cables of class 1 are usually only used up to a cross-section of 16 mm².
Note: Single-strand cables of class 1 and class 2 have the same conductor cross-section as
cables of class 5 and class 6. However, they have a smaller diameter. This may result in
clamping cables of equal diameters but different conductor cross-sections.
SICHARGE UC 150
Operating Instructions, 10/2022, A5E50068475-AB
Class 1 - cables with a single-strand conductor in the core
Class 2 - cables with multi-stand conductors in the core
Class 5 - cables with fine-strand conductors in the core
Class 6 - cables with multiple extra fine-strand conductors in the core.
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