Electrical Designations

The symbols presently used to designate electrical electronic parts and assemblies in navsea drawings are specified in ansi y32 2 1975 graphic symbols for electrical and electronics diagrams this publication provides alternate methods for symbolizing certain parts and should be consulted when a symbol is not clearly understood.

Electrical designations. Vista bella way rancho dominguez ca 90220 310 609 1811 800 326 0006 fax. Electric symbols on blueprints. The service panel is the central distribution point that connects the service wire or service drop the main wire coming from the outside into the house to the exit wires that split off and service different parts of the house. In defining designations prefix aspects are used.

The electric service panel is the connection between the external wires coming from the street and the internal wires of your home s electric system. This note gives a brief overview and introduction to the reference designation system. Ansi codes device designation numbers 7 comments. The ieee renewed the standard in the 1990s but withdrew it from active support shortly thereafter.

Provide nameplates constructed of 1 16 inch thick plastic laminated material. Is the complete electrical mechanism or servomechanism including the operating motor solenoids position switches etc for a tap changer induction regulator or any similar piece of apparatus which otherwise has no device function number. Rancho dominguez 2050 e. The placement of the outlets for all the electrical items in your home can have a significant impact on the design of your home.

Electrical symbols and reference designations. Engrave through colored surface material to contrasting colored sublayer. Ieee 200 was ratified in 1975. In the design of electrical power systems the ansi standard device numbers ansi ieee standard c37 2 standard for electrical power system device function numbers acronyms and contact designations identifies the features of a protective device such as a relay or circuit breaker these types of devices protect electrical systems and components from damage when an unwanted event occurs such.

Letters numbers and wording on wiring labels tell you important information such as the wire material the size of the wire and the type of insulation used on the conducting wires. Standard wire cable co. If you want to make sense of electric symbols on your blueprints then you ve come to the right place. One of the areas of the iec system which is sometimes confuses the first time people come across it is the formulation of reference designations.