During the construction process, there is a huge demand for electricity, involving various types of electrical equipment such as cranes, concrete mixers and welding machines. The calculation of the power capacity of the construction site is not simple, it needs to be based on the power of the equipment, operating conditions, the number and working time to estimate. First, a load analysis is carried out to determine the power and simultaneous use of each piece of equipment, then the daily, monthly and even yearly electricity demand is calculated, and finally the total demand of all the equipment is summed up to arrive at the total electricity capacity.
The estimation of the power capacity of a construction site is usually based on the peak value as a reference, for example, a 40-meter crane may require 100 kilowatts, two will be 200 kilowatts, concrete mixers 50 kilowatts each, and more than one running at the same time will require a higher power supply. For example, a construction site with four cranes, eight mixers and 10 welding machines could have an initial estimate of more than 700 kilowatts.
In order to ensure the stability and safety of the site's electricity consumption, it is necessary to flexibly adjust and control the power consumption capacity, which may require increasing standby generators, lowering the power of equipment or choosing low-voltage equipment. In addition, prioritizing energy-saving and environmentally friendly equipment that meets demand and reduces energy consumption will have a positive impact on both the economic and environmental objectives of the site.
In short, the accurate assessment and management of power consumption capacity at a construction site is a meticulous task involving equipment demand analysis, power calculation and timely capacity adjustment. Through scientific methods and the selection of environmentally friendly equipment, it is possible to ensure a stable and efficient power supply to construction sites, while taking into account cost and environmental factors.