BOND FE
Functional equipotential bonding
Functional equipotential bonding connects documented points for an operational or signal-related purpose.
SLD / Schematic
IEEE / ANSI · -
ANSI/IEEE functional equipotential bonding symbol
IEEE-oriented functional equipotential bond used to keep equipment at a common reference for operation or noise control.
In plain English
What does ANSI/IEEE functional equipotential bonding mean?
A functional equipotential bond ties equipment together for operational reasons, such as keeping communications equipment at a common reference or reducing high-frequency noise. The publisher's IEEE miscellaneous preview lists a functional equipotential bond form, the counterpart of the existing IEC concept page.
A simple example
This illustration is an independent explanation and not the IEEE graphic. A functional bond does not satisfy protective bonding requirements unless it is also sized and installed as a protective conductor. Drawings should not use the functional form where a safety bond is intended.
What the drawings help you do
Do not treat a functional bond as a protective one. Check high-frequency bonding requirements for drives and comms. A functional bond supports operation; a protective bond provides safety during faults.
This particular reference
IEEE-oriented functional equipotential bond used to keep equipment at a common reference for operation or noise control. A functional bond supports operation; a protective bond provides safety during faults.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: Autodesk IEEE Symbol Preview — Miscellaneous · IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
IEEE / ANSI · Autodesk IEEE-oriented functional equipotential bond form
Autodesk publishes this block under IEEE Symbol Preview: Miscellaneous. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · -
What it represents
A functional equipotential bond ties equipment together for operational reasons, such as keeping communications equipment at a common reference or reducing high-frequency noise. The publisher's IEEE miscellaneous preview lists a functional equipotential bond form, the counterpart of the existing IEC concept page.
This illustration is an independent explanation and not the IEEE graphic. A functional bond does not satisfy protective bonding requirements unless it is also sized and installed as a protective conductor. Drawings should not use the functional form where a safety bond is intended.
How to read it
- Do not treat a functional bond as a protective one.
- Check high-frequency bonding requirements for drives and comms.
Information to show or reference
- State the reason for the functional bond.
- Size it separately from protective bonds.
- Label bonded equipment.
A distinction that matters
A functional bond supports operation; a protective bond provides safety during faults.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview — Miscellaneous
Exact public IEEE-oriented category page listing the functional equipotential bond form.
IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
Graphic-symbol standards context and official status; not a source of reproduced artwork.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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