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When calculating the equivalent three-phase load, if there is only an inter-wire load, the equivalent three-phase load for a single unit is (3) times the inter-wire load

When calculating the equivalent three-phase load, if there is only an inter-wire load, the equivalent three-phase load for a single unit is (3) times the inter-wire load.

When calculating the equivalent three-phase load, if there is only an inter-wire load, the equivalent three-phase load for a single unit is (3) times the inter-wire load.

When calculating the equivalent three-phase load, if there is only an inter-wire load, the equivalent three-phase load for a single unit is (3) times the inter-wire load.

Square root of three times. Article 3.4.5 of the «Code for Electrical Design of Civil Buildings» stipulates that when single-phase loads should be evenly distributed across the three phases, and when the total capacity of these single-phase loads is less than 15% of the total capacity of the symmetrical three-phase loads within the calculation range, the calculations shall be carried out as if it were symmetrical three-phase loads； When it exceeds 15%, the single-phase load should be converted to an equivalent three-phase load, which is then added to the three-phase load. The equivalent three-phase load can be calculated as follows: 1. In the case of a three-phase load, the equivalent three-phase load is three times the value of the maximum phase load. 2. Only when there is inter-wire load, the equivalent three-phase load is: for a single unit, it is √3 times the inter-wire load ； For multiple units, it is 3 times the square root of the maximum inter-line load, plus (3 minus the square root) times the previous maximum inter-line load. 3. When there is both inter-wire load and phase load, the inter-wire load should first be converted into phase load; thereafter, the individual phase loads are added together, and the maximum phase load is multiplied by 3 to obtain the equivalent three-phase load