What is BS 7450 - Economic optimization of power cable size about?
BS 7450 is a British Standard that deals solely with the economic choice of conductor size based on joule losses.
Voltage dependent losses have not been considered. Likewise, matters such as maintenance, energy losses in forced cooling systems and time of day energy costs have not been included in BS 7450.
An example of the application of the method to a hypothetical supply system is given in BS 7450.
Note 1: It is recommended that the method given in BS 7450 should not be used for cables operating on system voltages equal to or greater than the following (see IEC 287)
Note 2: Modifications to the method given in BS 7450 to take dielectric losses into account are under consideration.
Who is BS 7450 - Economic optimization of power cable size for?
BS 7450 on Power cable size is useful for:
- Electrical engineer
- Cable installers and cabling designers
- Manufacturer of heavy electrical equipment
- Manufacturer of electrical appliances
- Power Distribution companies
Why should you use BS 7450 - Economic optimization of power cable size?
Usually to reduce the cost of cable, selection of wire with minimum admissible cross-section area is done. In this procedure cost of losses during the life time of the cable is neglected.
BS 7450 can guide you to select optimal size of cable so as to minimize long term heat loss and save capital.
The use of BS 7450 in long-distance transmission lines can save a lot of heat loss and make the system efficient. The reduction in loss as heat in turn will increase the life of the transmission lines.
