Switchboard Instrument

Switchboard Instrument

 

a measuring instrument that is designed to be mounted on, for example, a traffic-control panel, a control console, a control switchboard, or a cabinet of an

Figure 1. A switchboard voltmeter

electrical installation. A switchboard instrument may be an indicating instrument or a recording instrument. As a rule, switchboard instruments have a low class of precision, usually 1.0–5.