National Instruments NI 784xR User Manual page 21

Ni r series intelligent daq

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Measurement Category III is for measurements performed in the

building installation at the distribution level. This category refers to

measurements on hard-wired equipment such as equipment in fixed

installations, distribution boards, and circuit breakers. Other examples

are wiring, including cables, bus bars, junction boxes, switches, socket

outlets in the fixed installation, and stationary motors with permanent

connections to fixed installations.

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Measurement Category IV is for measurements performed at the

primary electrical supply installation (<1,000 V). Examples include

electricity meters and measurements on primary overcurrent

protection devices and on ripple control units.

1-11

Chapter 1

Introduction

R Series Intelligent DAQ User Manual

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