Cable support
Cable ladder / tray
A generic route object connecting cable-support layout to the selected system.
GA objects
Symbols · W
Conductor in conduit
A conductor or circuit line drawn inside a conduit outline, showing that the wiring is enclosed in a pipe or tube run.
In plain English
What does Conductor in conduit mean?
This representation places a conductor inside a pair of parallel lines or a tube outline to show that it is run in conduit. It appears on installation layouts and some single-line diagrams where the containment type affects derating, mechanical protection and fill calculations.
A simple example
The symbol does not give conduit size, material or the number of circuits sharing the conduit. Those items come from the containment schedule. When several circuits share one conduit, grouping derating applies to all of them, so a reader should check whether more than one circuit line enters the same outline.
What the drawings help you do
Count how many circuits are drawn within the same conduit outline. Check the containment schedule for size and material. Conduit is enclosed containment; cable tray or ladder is open support and has different derating and fill rules.
This particular reference
A conductor or circuit line drawn inside a conduit outline, showing that the wiring is enclosed in a pipe or tube run. Conduit is enclosed containment; cable tray or ladder is open support and has different derating and fill rules.
- Rating
- A value stating the conditions for which equipment is specified.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: Cable tray and ladder systems · Electrical installation design methodology and references
SLD / GA · W
What it represents
This representation places a conductor inside a pair of parallel lines or a tube outline to show that it is run in conduit. It appears on installation layouts and some single-line diagrams where the containment type affects derating, mechanical protection and fill calculations.
The symbol does not give conduit size, material or the number of circuits sharing the conduit. Those items come from the containment schedule. When several circuits share one conduit, grouping derating applies to all of them, so a reader should check whether more than one circuit line enters the same outline.
How to read it
- Count how many circuits are drawn within the same conduit outline.
- Check the containment schedule for size and material.
Information to show or reference
- Tag the conduit with its size and material.
- List the circuits carried in each conduit.
- Apply grouping derating where several circuits share it.
A distinction that matters
Conduit is enclosed containment; cable tray or ladder is open support and has different derating and fill rules.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Cable tray and ladder systems
Manufacturer containment product context for cable support and enclosure types.
Electrical installation design methodology and references
Installation design methodology covering wiring systems.
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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