Engineering calculation rules
First, depending Insulator string Insulator mounting means mounting a vertical or V-mentioned hanging wires installed, jumpers, deflectors, or the equipment used to connect the device, according to the process layout according to the design shown mounted in a number of “string” is unit of measurement.V-type two strings of the string according to the calculated quantities.
Second, support for Insulator mounting process and fixed number of holes arranged according to the design illustrated installation number “a” is measured in accordance.
Third, regardless of wall bushing mounted horizontally, vertically mounted, designed according to the number shown in “a” units of measurement.
Fourth, the soft busbar mounting means mounted directly suspended by the string Strain Insulator, based on the bus or in the form of cross-sectional area and the number, arrangement designed according to the “Cross / three-phase” units of measurement.
Five soft bus deflectors, jumper wiring of the installation according to wire section, arranged according to the design of “Group / three-phase” units of measurement.
Six, soft reservation busbar mounting length calculated in accordance with the design requirements, the following table is calculated in accordance with the predetermined design without.
Soft Generatrix reserve unit of length: m / Root
Tension device deflectors project jumper cable length reserved 2.50.80.60.6
Seven rectangular tubular busbar and the busbar is mounted deflectors, each based on the bus Slides material and cross-sectional area or diameter, according to the number of mounting design icon “m / single-phase” units of measurement.
Eight, rectangular bus telescopic section, the installation according to the number of sheet material and bus expansion joints designed according to the number shown mounted in “a” units of measurement; rectangular bus transition plate is mounted, according to the number of designs shown mounted in a “block” to meter unit.
IX busbar mounting groove, the number and specifications based on the bus, in accordance with the design shown mounted in a number “m / single-phase” units of measurement.
X. groove connected to the device bus, the device according to the specifications of the number of joints and the connection bus bar groove, designed in accordance with the number of devices connected to the “Taiwan” units of measurement.
XI The installation phase enclosed bus conductor housing section area and diameter, according to the design shown mounted to the axial length “m” units of measurement.
XII The total box busbar mounting box section and each photo conductor cross-sectional area and number, according to the design shown mounted to the axial length “m” units of measurement.
Thirteen, low pressure (less than 380V voltage level) enclosed busbar plug installed capacity per phase current, according to the design shown mounted to the axial length “m” units of measurement; splice box, the leading end mounting box according to current capacity, according to the number of mounting design icon “station” units of measurement.
Fourteen, bus bars installed, the material based on the bus, cross-sectional area or use, according to weight of the finished design shown mounted “t” units of measurement.
Fifteen, production and installation of telescopic section bus bar, bus bar according to the cross-sectional area, in accordance with the design shown installed base “a” units of measurement.
Sixteen, bus bar guide plate production and installation, depending on the material with a polar, mounted in accordance with the design shown the number of “beam” units of measurement.
XVII heavy aluminum bus contact surface machining is the process of casting the contact surface, the contact surface of the processing section in accordance with heavy aluminum bus, in accordance with the actual number of processing “sheet / single-phase” units of measurement.
Eighteen, hard reservation busbar mounting length calculated in accordance with the design requirements, the following table is calculated no predetermined design.
Hard busbar mounting length reserved
Item No. Description 1 Reserved longitudinal rectangular groove, the tubular bus bar terminal 0.3 counted from the last point of support 2 a rectangular, groove, and a tubular branch lines connected to the bus 0.5 3 branch lines reserved rectangular groove connected to the device bus 0.5 date more than four pieces of heavy equipment with a bus interface connection from the terminal device 1 counting from the terminal equipment interfaces