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Ordinary duty cables – H05BB-F

6  Heat resistant cables (90 °C)

6.1   Ordinary duty cables – H05BB-F
6.1.1  Construction

6.1.1.1  Conductor
The conductor shall be class 5, according to EN 60228.
6.1.1.2  Sizes of cable

The sizes of cable shall be:

-      2 and 5 core – 0,75 mm2 to 2,5 mm2;

-      3 and 4 core – 0,75 mm2 to 6 mm2.

6.1.1.3  Insulation
The  insulation  shall  be  a  cross-linked  elastomeric  compound,  Type  EI 6  to  EN  50363-1,
applied around each conductor.
6.1.1.4  Assembly
The cores shall be twisted together.

NOTE 1  A centre filler may be used.
NOTE 2  A tape may be applied around the core assembly before application of the sheath.
6.1.1.5  Sheath
The sheath shall be a cross-linked elastomeric compound of Type EM 6 to EN 50363-2-1.
The sheath shall fill the spaces between the cores.
The colour of sheath is not specified.

NOTE  If black is used, the requirement in EN 50363-2-1 for EM 6 to have a minimum level of carbon
black will apply.
6.1.1.6  Marking
The cable shall be marked with the CENELEC code H05BB-F. The marking shall comply with Clause 6 of
EN 50525-1.

6.1.2  Requirements

Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular
requirements of this Part.

Testing shall be in accordance with Table A.2, column 6.


The dimensions of the cables shall conform to Table B.1 for the relevant size.
The requirements to be met for the compatibility test shall be as given in Table C.2.

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