Calculation of electrical installations (cables, protections, conduits, etc.)

Tool to support the calculation of electrical installations that will allow the user (designer / electrician / technician) to perform electrical calculations easily and quickly.

· Dimensioning complete of low voltage circuits with the most frequent installation methods

· Phase cable size, neutral, protective conductor

· Criteria based on the admissible current of the cable, voltage drop and overcurrent protection

· Designation of the most used cables.

· Circuits with automatic circuit breaker until In = 4000 A (Ir rating setting), maximum fuse In = 1600 A (gG type), maximum 12 conductors parallel per phase, maximum size 630 mm²

· Estimate of the maximum short-circuit current (simplified method)

· Forecast of loads of a building destined to houses with several sections: dwellings, common services, commercial premises/offices and garage with/without infrastructure for recharging electric vehicles

· Reactive power of the capacitor bank for the compensation of the power factor (cos φ) and capacity (µF) of the capacitors

· C/K Factor for automatic capacitor bank

· Choice of installation system in the function of the circuit, cable and its situation

· Power in an unbalanced three-phase system

· Overvoltages due to loss of neutral conductor, earth fault and short circuit

· Electricity parameters of a single-phase or three-phase (balanced)

· Transformer performance

· Secondary voltage of a transformer acoording to switch position

· Size of trays and conduits

· Conduits characteristics according to the installation method

· Conversions of wire sizes (mm²-awg) and conduits threads

· Representation of the curves of the protections

· International protection IP - IK

Parameter settings for calculations:

· Constants (voltages, conductivity, temperatures, etc.) that affect electrical calculations

· Protections (circuit breakers and fuses)

· Selection of minimum rate for circuit-breakers with regulation and maximum cable size for multi-conductor grouping per phase

· Method estimation of the reactance

· Conductivity of the conductor depending on the current of the circuit (constant, according to the expected current, maximum cable temperature)

· Use reduction factors by grouping cables/circuits

· Use of factors of diversity/utilization

· Reference documents: IEC Standards, REBT (sp), Technical Application Guide, (UE) 2016/364

IN NO CASE SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT OR INDIRECT DAMAGES AS A RESULT OF THE CORRECT OR INCORRECT USE OF THE APPLICATION