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Sizing Circuit Protection and Conductors Part 1
2013-02-13 20:00:00| Electrical Construction & Maintenance
By Mark Lamendola, Electrical Consultant Understanding which NEC ampacity table to use when sizing circuit protection, and how to determine the minimum ampacity of your conductors read more
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protection
circuit
sizing
The future of mobile CPUs, part 1: Today's fork in the road
2013-02-13 18:35:39| MobileTechNews
The divergence of the Phone from the Tablet will continue according to this prediction.
Duni to close part of the business within its Rexcell subsidiary
2013-02-13 06:00:00| Nonwovens Industry Breaking News
Tags: business
part
within
close
New Corvette marks GMs first use of heat-activated shape memory alloy to replace heavier motorized part
2013-02-12 12:30:25| Green Car Congress
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memory
shape
replace
Sizing Feeders, Part 2
2013-02-11 19:51:00| Electrical Construction & Maintenance
One reason Annex D3(a) has a more complicated example of feeder sizing is the circuit is being divided up into different runs with different temperature requirements. But another reason is the neutral calculations are complicated by the fact that the load isn't calculated on the basis of VA per square meter or square foot. Thus, 210.11(B) does not apply and we cannot assume the load is evenly distributed. Before we look at the implications of this, let's see how dividing up the circuit affects the feeder sizing for the ungrounded conductors. read more
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