Laying in air

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Table 10
Average temperature °C     10 15 20 25 30 35 40 45 50
Isolation type XLPE         1.15 1.12 1.08 1.04 1.0 0.96 0.91 0.87 0.82
PVC         122 1.17 1.12 1.07 1.0 0.94 0.79 0.79 0.71
Table 11
Arrangementof Cables OOO   Clearance Cable diameter (d)Distance from wall: & 2 cm O   Clearance: 2dOO Distance from wall: £ 2 cm
Number of systemsside by side 1       2        3 1      2      3
Laying on the ground 0.92     0.92     0.89 0.95    0.90     0.88
Number of grillss
  1
Laying onCables Troughs
(impededair circulation)
2
  3
  6
0.92     0.89     0.88

0.87     0.84     0.83

0.84     0.82     0.81

0.82     0.80     0.79
0.95     0.90     0.88

0.90     0.85     0.83

0.88     0.83     0.81

0.86     0.81     0.79
Number of troughs
  1
Laying on Cables grillss
(unimpeded air circulation)
2
  3
  6
0.92     0.89     0.88

0.87     0.84     0.83

0.84     0.82     0.81

0.82     0.80     0.79
1.00     0.98     0.96

1.00    0.95     0.93

1.00    0.94     0.92

1.00    0.93     0.90
Number of system
above each other
   
Laying on Cables grillss
(unimpeded air circulation)
 
         1    2     3

         0.94     0.91     0.89



Arrangement for
which a
reduction
is not necessary
 

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