How is aluminium busbar weight calculated?
How is aluminium busbar weight calculated?
To find out the total weight per unit of your aluminium extrusion simply multiply the kg/m by the length of the finished product.
How is aluminium busbar size calculated?
Assume we have an aluminium busbar with Width x Depth = 10 x 10 mm. It means this busbar has 100 Sq.mm with current capacity 100 x 0.7 A = 70 A.
How do you calculate the weight of aluminum?
Aluminum has an atomic weight of 26.9815 in Daltons or grams per mole (g/mol). This means if you have a certain number of moles of aluminum, you can multiply it by the atomic weight to figure out how many grams per mole of aluminum you have. This accounts for the weight of aluminum in its pure form.
How is bus bar load calculated?
Bus bar Cross Section Area as per Short Circuit= 50000X√ ((1.166/( 100×100)x(1+ 0.00403×85) x1. Bus bar Cross Section Area as per Short Circuit=626 Sq.mm. Select Higher Size for Bus bar Cross section area between 436 Sq.mm and 626 Sq.mm. Final Calculated Bus Bar Cross Section Area =626 Sq.mm.
What is the mass of aluminum in kg?
The density of aluminium is about 2,710kg/m3. The density of the alloys of aluminium does not vary widely from this figure ranging between 2,640kg/m3 and 2,810kg/m3.
What is the current density of aluminium busbar?
Current density is generally 0.8 A per sq.mm for aluminium & 1.6 A per sq.mm for copper.
Is standard for aluminium busbar?
Standard Aluminium pipes of minimum size 4″, 3″, 2.5″ and 1.5″ will be used for busbar of 400KV, 220 KV, 132 KV and 33 KV switchyard respectively.
What is formula of weight calculation?
Weight is a measure of the force of gravity pulling down on an object. It depends on the object’s mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object’s weight in Newtons (N) and m is the object’s mass in kilograms.
How do you calculate weight of aluminium by volume?
Weight of Aluminum per Cubic Inch The weight of aluminum can range from 0.096 lbs per cubic inch (5086 aluminum alloy) to 0.103 lbs per cubic inch (7049 aluminum alloy). The most popular grade of aluminum alloy (3003) weighs approximately 0.099 lbs per cubic inch.
What size busbar do I need?
The generalized answer is you size busbars in roughly the same way you size wire, figure out the maximum current (amps) that will be flowing through that circuit, select a fuse that is larger than that number (1.25x or greater is the rule of thumb) than size your wire and busbars larger than the fuse.
How do you calculate weight from mass?
To find an object’s mass using its weight, the formula is Mass equals Weight divided by the Acceleration of Gravity (M = W ÷ G). Convert the weight measured in pounds to the equivalent in Newtons.
What is the unit weight of aluminium?
How much does an aluminum bar weigh?
The Ultra-Lite Aluminum Weight lifting bar is 28 mm diameter, 6’bar and weighs 15lbs but is significantly reduced in weight so that the trainee can focus 100% on form and not the weight of the bar….Additional information.
Weight | 15 lbs |
---|---|
Dimensions | 74 × 4 × 4 in |
What is the current carrying capacity of aluminium bus bar?
Aluminum Busbar current carrying capacity
BUS | : Constructional details and Current carrying capacity at 35 C | |
---|---|---|
Size in MM | Cross sectional area in MM2 | Weight (Approx) Kg/Mtr |
12 x 2 | 23.5 | 0.0633 |
15 x 2 | 29.5 | 0.0795 |
15 x 3 | 44.5 | 0.120 |
How is busbar rated?
The IEEE states a busbar should be rated at the highest amperage passing through any section of the busbar, with a maximum of a 50° C rise in temperature from an ambient temperature of 50° C.
What is the value of weight?
“The weight W of a body is equal to the magnitude Fg of the gravitational force on the body.” The gravitational acceleration varies from place to place. Sometimes, it is simply taken to have a standard value of 9.80665 m/s2, which gives the standard weight.
How do you calculate weight from volume?
You can determine its weight simply by multiplying the density by the size, or volume, of the item.
How many amps is a bus bar?
This is confirmed by Table 1 which lists the ampacity of 1/16 x 1 in. bus bar as 187 amp.
What is the formula to calculate weight?
How do you calculate aluminium weight per meter?
dwg format (Autocad) on a natural scale (1:1). With this software, you can easily obtain the section or area of the drawn geometry, and then you should multiply it by 2.7 (the specific gravity of aluminum). The resulting figure will be equivalent to the weight in grams per meter of the profile.
Which material is used for busbar?
Copper
Copper is a common conductive metal used in busbars and many electrical utilities around the world. Copper is chosen for it’s resilience to higher temperatures, providing extra security during short circuit situations.
What is the current density of an aluminium busbar?
Ratings for single bars have been extrapolated from the chart on page 13 and other published data on aluminium busbars in switchboards. This reveals a current density of:- 1.1A/mm² to 700mm² 1.0A/mm² above 700 to 1200mm² and 0.8A/mm² above 1200 to 3200mm².
What are the main considerations when choosing aluminium busbars?
The main considerations for both materials are- Mechanical Properties Electrical Properties Reliability Cost Availability The primary concern in the use of aluminium busbars is the jointing between aluminium, and to dissimilar metals such as plain and plated copper. This is addressed by the application of a patented plating process.
When was the first aluminium busbar made?
The first aluminium busbars in the U.S.A. were made by ALCOA in 1895. these were rated at 20,000A and installed at ALCOA’s Niagara works.¹
What is the current carrying capacity of a busbar?
The current carrying capacity of a busbar is determined by its maximum continuous operating temperature. According to AS/NZS 3439.1 (IEC 60439-1) this is 90ºC for aluminium bars and 105˚C for copper. (This limitation for aluminium does not take plating into account, in which case the temperature may be higher.)