Wire Numbering Standard

Currently having to design stuff to iec standard.

Wire numbering standard. The cross sectional area of each gauge is an important factor for determining its. Usually indicated by the number 2. I had a customer who complained a lot even though the field terminals were mounted on the bottom of the panel. British standard wire gauge is a set of wire sizes given by bs 3737 1964 now withdrawn and is generally abbreviated to swg.

Number individually all wires so that if wire xxx disappears into a great bundle of wires it can be identified somewhere else. The simplest way is to give the first wire on the page the number of the page followed by a sequence number. Standard colours for high voltage wires. X and y for plc connections is good.

This other method does not work with field tagging the wires since wire number portable machines that electrician use are only approx 10 chars long. Wire numbers turned 90 degrees due to the terminal blocks mounted horizontal on the bottom. The wire numbers that we use are determined on what drawing sheet that derive from with reference. Indicated by a number such as 12 for 12 gauge or a number followed by awg for american wire gauge.

Wire number should give you a line reference on prints. Imperial wire gauge or british standard gauge use of swg sizes has fallen greatly in popularity but is still used as a measure of thickness in guitar strings and some electrical wire. Ie our drawings have 0 9 ref pos across the top of drawing. Even same idents for different components.

It is also known as. Though the wire numbering and terminal numbering shown in the figure is typical in practice there are many ways and methods of numbering wires and terminals that may be adopted. American wire gauge awg also known as the brown sharpe wire gauge is a logarithmic stepped standardized wire gauge system used since 1857 predominantly in north america for the diameters of round solid nonferrous electrically conducting wire. For example if the page is 90 we will give the first number 9001 9002 9035 etc.

Dimensions of the wires are given in astm standard b 258. This cuased the wire numbers to be shown pointed toward the ground readable left to right. Vista bella way rancho dominguez ca 90220 310 609 1811 800 326 0006 fax. Eplan does the wire numbering automatically all we have to do is to tell the software how to do it.

All wires same colour wire numbers not allowed. Line number 1111 wire number passing thru 1st device on line number 1111a iec and jic use this method. A cross referencing number is one of the methods found useful during cable laying and termination continuity testing and troubleshooting. Standard wire cable co.