Cables
7.
Ref.1912
· 241 ·
DDS
HARDWARE
It determines ·for B2 installation method· the minimum section of the cable
through which the maximum current allowed in continuous duty can
circulate on three-phase wires in PVC hoses or installed on the machine
through conduits or channels according to UNE-EN 60204-1:2007.
The ambient temperature is assumed to be 40°C/104°F.
MANDATORY. The dielectric insulation of the cable must be enough to
withstand the test voltage at a minimum of 2 000 V AC for 5 minutes for
cables supporting voltages over 50 V AC (alternating current) or 120 V DC
(direct current). Refer to the recommendations of the cable manufacturer
before doing the installation.
T. H7/3 Conductor section / Imax current permitted according to UNE-EN
60204-1:2007, table 6. B2 installation method.
Section Imax. Section Imax. Section Imax.
mm² A mm² A mm² A
0.75 8.5 6 30 50 103
1.0 10.1 10 40 70 130
1.5 13.1 16 54 95 156
2.5 17.4 25 70 120 179
423 3586
INFORMATION. If installation methods other than B2 are available and/or
demands are lower than the maximum provided by the power supply, see
appendix D.1.2 of UNE-EN 60204-1:2007 to determine the corresponding
method and depending on the rated current requested for the power supply,
obtain the minimum required cable section shown in table 6 of this
regulation. Note that the section obtained can be less than
that given in table
T. H7/3.
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