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Knowledge Sharing

Part 1 (h) – Conductor

The routine test shall be tested on conductor to determine the DC resistance of the conductor at 20 oC and the measured value shall not exceed the appropriate maximum specified in table of IEC 60228 and BS 6360. This type of test is done on a 1 meter sample in a laboratory using a double…

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Part 1 (g) – Conductor

Current carrying capacity depends on the cross-sectional area of the conductor and the material it is made from. The complexity of cable routes and environmental constraints such as burial depth, type of soil will also influence the current rating. It is often referred to as “derating factor”. Therefore engineers and designers, when calculating power load…

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Part 1 (f) – Conductor

Almost any type of copper or aluminium conductor produced today undergoes concentric stranding to build up to a desired cross-sectional area. For instance it is much more practical and cost effective to produce a 19-wire 35mm2 conductor than to produce a single solid 35mm2 conductor.  13,000 total views

 13,000 total views

Part 1 (e) – Conductor

Calculating conductor weight is fairly straight forward. No complex formulas here. Simply multiply the conductor cross-sectional area by the material density of that conductor.   Disclaimer: Our product knowledge sharing series is intended for information and educational purposes only. It shall not be construed as a technical guide or guarantee on our part. If you…

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Part 1 (d) – Conductor

Last week’s post, we shared the composition and material density of copper, aluminium and aluminium alloy. That determines the strength and conductivity of each material. The chart above shows the comparison between copper and three different grades of aluminium. The unique properties of each grade of material makes it suitable for different uses. For instance:…

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Part 1 (c) – Conductor

Copper, aluminium and aluminium alloys are common materials. For electrical conductors, the copper has to be 99.9% pure and the aluminium must be at least 99.5% pure. Alloys have slightly lower purity as other composite metals are added for tensile strength. Aluminium are more commonly used for aerial and overheads due to it being lighter…

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