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A typical residential water meter A typical residential digital electric submeter Before submetering, many landlords either included the utility cost in the bulk price of the rent or lease , or divided the utility usage among the tenants in some way such as equally, by square footage via allocation methods often called RUBS (Ratio Utility ...
Encoder receiver transmitter (ERT) is a packet radio protocol developed by Itron for automatic meter reading. [1] The technology is used to transmit data from utility meters over a short range so a utility vehicle can collect meter data without a worker physically inspecting each meter.
The Model 2 was first introduced in 1929 alongside the Fedelcode line of sirens, replacing the antiquated and lackluster Type B. The first design of the Model 2 featured 3 louvers, 2 on top and 1 on the bottom. This design lasted until around 1953. The newer and current design has 1 louver on top and 2 on the bottom.
The IEEE 315 standard contains a list of Class Designation Letters to use for electrical and electronic assemblies. For example, the letter R is a reference prefix for the resistors of an assembly, C for capacitors, K for relays. Industrial electrical installations often use reference designators according to IEC 81346.
Optical port on a digital kilowatt-hour meter Optical port on a heat meter Optical port on a smart kilowatt-hour meter. IEC 62056 is a set of standards for electricity metering data exchange by International Electrotechnical Commission.
A wire list is made in spreadsheet or list format. It shows the electrical assembly people what wires are to be connected and to where. When it is printed out on paper, it is easy for the assembly people to check off conductors as they are connected. The wire list contains at a minimum each wire name, terminal name, and wire model number or gage.
IEC 62057-1 Electrical energy meters – Test equipment, techniques and procedures – Part 1: Stationary meter test units (MTUs) IEC 62057-3 Electrical energy meters – Test equipment, techniques and procedures – Part 3: Automatic meter testing system (AMTS) IEC 62058 Electricity metering equipment (AC) – Acceptance inspection
That field is called electric field.If the charge doesn't move. If the charge moves, thus realizing an electric current, especially in an electrically neutral conductor, that field is called magnetic. Electricity can be given a quality — a potential. And electricity has a substance-like property, the electric charge.