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Distance to lateral edge of multi-layer backfill

Distance from cable to the side of the backfill area.

All resistances $R_q$ are calculated once for the side with shorter distance to backfill boundary, and once for the other side.

Symbol
$w_{b4}$
Unit
m
Formulae
$\frac{w_b}{2}+x_{pos}-x_b$distance to left side of backfill
$\frac{w_b}{2}+x_b-x_{pos}$distance to right side of backfill
Related
$w_b$
Width of the backfill [mm]
$x_b$
Horizontal center of backfill [mm]
$x_{pos}$
Horizontal x-position of multi-layer backfill [m]
Used in
$d_{b3}$
Distance c of multi-layer backfill [m]
$d_{b4}$
Distance d of multi-layer backfill [m]
$R_{q11}$
Thermal resistance 11 of multi-layer backfill [K.m/W]
$R_{q12}$
Thermal resistance 12 of multi-layer backfill [K.m/W]
$R_{q13}$
Thermal resistance 13 of multi-layer backfill [K.m/W]
$R_{q21}$
Thermal resistance 21 of multi-layer backfill [K.m/W]
$R_{q31}$
Thermal resistance 31 of multi-layer backfill [K.m/W]
$R_{q32}$
Thermal resistance 32 of multi-layer backfill [K.m/W]