Cableizer ®

Number of conductors cable

Number of conductor cores of equal size.

Four-core cables contain three active phases plus either neutral (N), ground (PE) or ground/neutral (PEN) wire.
Five-core cables contain a neutral (N) plus a separate ground (PE) wire.

Symbol
$n_c$
Used in
$A_{ab}$
Cross-sectional area armour bedding [mm$^2$]
$A_c$
Cross-sectional area conductor [mm$^2$]
$A_j$
Cross-sectional area jacket [mm$^2$]
$\alpha_p$
Factor $\alpha_p$
$c_c$
Distance conductor axis—cable axis [mm]
$d_{c,t}$
External diameter conductor, transient [mm]
$D_e$
External diameter object [mm]
$D_{eq}$
Equivalent diameter of a group of round objects [mm]
$F_{ppc}$
Permissible pull force [N]
$GMR_{cc}$
Geometric mean radius conductor bundle [mm]
$K_{ce}$
Radiation shape factor conductor—enclosure
$m_c$
Mass conductor [kg/m]
$m_i$
Mass insulation [kg/m]
$m_{sc}$
Mass metallic screen [kg/m]
$m_{sh}$
Mass metallic sheath [kg/m]
$m_{shj}$
Mass jacket over each core [kg/m]
$m_{sw}$
Mass skid wires [kg/m]
$m_{tape}$
Mass tapes [kg/m]
$n_{ph}$
Number of phases in a cable
$Q_B$
Thermal capacitance B transient thermal circuit [J/(m.K)]
$Q_{B,i}$
Thermal capacitance B transient thermal circuit, insulation [J/(m.K)]
$Q_{B,s}$
Thermal capacitance B transient thermal circuit, screen/sheath [J/(m.K)]
$Q_{c,t}$
Thermal capacitance conductor transient (IEC 60853) [J/(m.K)]
$Q_{ct}$
Thermal capacitance conductor tape (IEC 60853) [J/(m.K)]
$q_{Mie}$
Factor $q$ (Mie1905)
$Q_{tot}$
Thermal capacitance, transient [J/(m.K)]
$S_{ar}$
Circumference armour [mm]
$T_A$
Thermal resistance A transient thermal circuit [K.m/W]
$T_C$
Thermal resistance C transient thermal circuit [K.m/W]
$T_d$
Internal thermal resistance for dielectric losses [K.m/W]
$T_r$
Thermal resistance, total [K.m/W]
$\theta_{c,z}$
Temperature conductor z [°C]
$\theta_{sh}$
Temperature sheath [°C]
$W_{rad,ce}$
Radiation heat transfer conductor→enclosure [W/m]
Choices
NbType
1single-core cable
2two-core cable
3three-core cable
4four-core cable
5five-core cable