BS IEC 60287-3-2 is a British Standard for the selection of cable size taking into account the initial investments and the future cost of the energy losses during the anticipated operational life of the cable.
Matters such as maintenance, energy losses in forced cooling systems and time of day energy costs have not been included in BS IEC 60287-3-2.
BS IEC 60287-3-2 on economic optimization of power cable size is useful for:
The procedure generally used for the selection of a cable size leads to the minimum admissible cross-sectional area, which also minimizes the initial investment cost of the cable. BS IEC 60287-3-2 does not take into account the cost of the losses that will occur during the life of the cable. The increasing financial and environmental cost of energy, together with the energy losses which follow from conductors operating at high temperatures, requires that cable size selection be considered on wider grounds.
BS IEC 60287-3-2 specification provides the user to have a continuous flow of electricity without any circuit break and calculates the total cost and approach to be followed. Using guidelines ensures cost-effectiveness and quality assurance for longer service life.
IEC 60287-3-2:2012