Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

F

IEEE / ANSI

ANSI/IEEE Double spark gap form

This reference locates double spark gap in Autodesk's IEEE-oriented miscellaneous family. The double spark gap places two gaps in one element, typically from each of two line conductors to a common centre electrode that is earthed. It protects a pair of conductors, such as a telecom pair, with a single component so that both lines are diverted together. The public library uses HFU1_S00372 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

Drawing use

Schematic

Application

Connections & wiring

Reference family

IEEE / ANSI / Manufacturer

Form evidence

Spark Gap, Double. Autodesk IEEE Symbol Preview: Miscellaneous, block HFU1_S00372. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

A distinction that matters

A double spark gap protects two conductors to a common electrode; a single spark gap protects one path.

Full referenceAdd to legend

F

IEC

Double spark gap

The double spark gap places two gaps in one element, typically from each of two line conductors to a common centre electrode that is earthed. It protects a pair of conductors, such as a telecom pair, with a single component so that both lines are diverted together.

Drawing use

Schematic

Application

Connections & wiring

Reference family

IEC / Manufacturer

Form evidence

Spark Gap, Double. Autodesk IEC-60617 Symbol Preview: Miscellaneous; vendor family reference, not certified IEC geometry.

A distinction that matters

A double spark gap protects two conductors to a common electrode; a single spark gap protects one path.

Full referenceAdd to legend

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.