Terms that are on use on this site.
There are 493 entries in this glossary.N
| Term | Definition |
|---|---|
| NC |
Numerical Control is a technique of operating machine tools or similar equipment in which motion is generated in response to numerically ordered commands generated by CAD systems, punched tapes, or other communication media. |
| NEMA-12 |
A standard from the National Electrical Manufacturers Association, which defines enclosures with protection against dirt, dust, splashes by non-corrosive liquids, and salt spray. |
| NEMA-4 |
A standard from the National Electrical Manufacturers Association, which defines enclosures intended for indoor or outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, and hose-directed water. |
| NEMA-7 |
A standard from the National Electrical Manufacturers Association, which defines explosion-proof enclosures for use in locations classified as Class I, Groups A, B, C or D, as specified in the National Electrical Code. |
| NEMA-Size Case |
An older US case standard for panel meters, which requires a panel cutout of 3.93 x 1.69 inches. |
| Network |
1) Any system of computers and peripherals. |
| Node |
A terminal on a data communications network. |
| Noise |
An unwanted electrical interference on the signal wires. |
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