Voltage drop is a basic skill required for every electrical engineer in the nuclear power industry. Here’s a summary of how it’s calculated. There are also references to relevant National Electric Code articles . . . . Continue reading “Voltage drop”
Cable temperatures and physics
It’s helpful to be reminded of the basic physics underlying the basis for the temperature rating of conductors . . . .
A five-step cable sizing procedure
There are numerous ways to go about doing this. Here’s one that is sure to work. It’s concise: five steps . . . . Continue reading “A five-step cable sizing procedure”
Breaker temperature ratings
Choosing a breaker based on its trip setting? Careful. You might need to make some adjustments . . . . Continue reading “Breaker temperature ratings”
Cable temperature ratings – it’s all about the insulation
Cables can be purchased that are rated for different temperatures. The three most common conductor temperature ratings are 60ºC, 75ºC, and 90ºC . . . . Continue reading “Cable temperature ratings – it’s all about the insulation”
Derating cable ampacity – count the ground or neutral?
Here are three common scenarios that you need to keep in mind when sizing a new cable. Its ampacity will have to be derated depending on how these three factors apply to you . . . .
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A note about the difference between ICEA and IPCEA
IPCEA, or ICEA? Here’s the connection . . . .
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Basic cable sizing and ampacity determination
This is one of the first things an electrical engineer in the nuclear power industry will probably do: sizing a cable by determining, among other things, its ampacity. . . .
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