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It's a table that shows the ampacity ratings for the particular wire size and insulation you are using. Example: #12 THHN CU is rated @ 30amps under the 90 degree column. (#12)is the wire size, (THHN)is the type of insulation on the wire (CU)is copper. You shouldn't be using the chart unless you're a qualified electrician simply because there are many sub rules and exceptions.
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What is the summary content of NEC 690?
nec 690
Is it NEC code to have a water fountain on a GFCI protection?
Yes. NEC 2005 440.21
What size copper bonding jumper is required by NEC - OR 2011 to bond the gas pipe to a 120v 20A circuit?
I don't know what the NEC - OR 2011 is. Is that a code book for the state of Oregon? The NEC does not allow using a gas pipe as a grounding electrode. You run the risk of heating the gas to explosive temperatures.
Why are the black and white wires hot?
It is because the nec standard.
When did NEC require 3 wire circuits in a home?
1960
What table in NEC would use to find FLC of a 3 phase motor?
To find the full-load current (FLC) of a 3-phase motor, you would refer to Table 430.250 in the National Electrical Code (NEC). This table provides the FLC values for various types and sizes of motors.
How calculate the cable size when give current?
The NEC has a table that shows what size cable to use with each amperage and where it can be used.
What is NEC's population?
The population of NEC is 31.
What is the population of NEC?
NEC's population is 2,011.
What is NEC's motto?
NEC's motto is 'Empowered by Innovation'.
What is the summary content of NEC 690?
nec 690
When was NEC created?
NEC was created on 1899-07-17.
What does NEC in icd9 code?
NEC stands for not elsewhere classifiable
When was NEC Supertower created?
NEC Supertower was created in 1990.
What is the population of NEC Soft?
NEC Soft's population is 5,341.
When was NEC Soft created?
NEC Soft was created in 1975.
What is NEC Group's population?
NEC Group's population is 2,000.
