# Cable sheath single-point bonding arrangement

Canonical URL: https://eloragrid.ai/symbols/cable-sheath-single-point-bonding-arrangement
Publisher: Elora Grid
Updated: 2026-11-03
Lookup label: CSSBA
Drawing use: Schematic
Reference families: Manufacturer

Representation: Functional block
Installation focus: switchyards
Input: Cable sheath
Output: Selected bonding point

Shows the documented one-point earth connection for the assigned cable sheath system.

## In plain English

### What this block does

Shows the documented one-point earth connection for the assigned cable sheath system.

### A simple example

In a switchyard arrangement, the earthing references help connect each primary equipment structure and surge-protection device to the correct earth-grid interface. Separate details show actual joints, sizes and installation routes. For this reference, the drawing identifies “Cable sheath” at the input and “Selected bonding point” at the output. Sheath voltage behavior requires the cable bonding design.

### What the drawings help you do

Start at the named input: Cable sheath. Identify its source device or document and the state represented on the drawing. Follow the named output: Selected bonding point. Cross-reference its destination and separate the command from confirmation that the equipment responded.

### Terms

- Input: Cable sheath
- Output: Selected bonding point
- Application reference: An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections.

Concept diagram: Cable sheath → CSSBA → Selected bonding point
A reading guide. The entry's original illustration and input/output facts describe this application.

- [Earthing connections](https://www.electrical-installation.org/enwiki/Earthing_connections)


## What it represents

Shows the documented one-point earth connection for the assigned cable sheath system. Earthing and lightning interfaces identify the connections between equipment metalwork, primary protection devices and the station earthing network. Their electrical purpose differs from their physical conductor route or electrode geometry.
In a switchyard arrangement, the earthing references help connect each primary equipment structure and surge-protection device to the correct earth-grid interface. Separate details show actual joints, sizes and installation routes. For this reference, the drawing identifies “Cable sheath” at the input and “Selected bonding point” at the output. Sheath voltage behavior requires the cable bonding design.
Name every connected item and the earthing design reference. The illustrative connection does not establish touch or step voltages, conductor sizing, lightning coverage or safe working conditions. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation.

## How to read it

- Start at the named input: Cable sheath. Identify its source device or document and the state represented on the drawing.
- Follow the named output: Selected bonding point. Cross-reference its destination and separate the command from confirmation that the equipment responded.
- Sheath voltage behavior requires the cable bonding design.
- Name every connected item and the earthing design reference. The illustrative connection does not establish touch or step voltages, conductor sizing, lightning coverage or safe working conditions.

## Information to show or reference

- Label the source and connection reference for cable sheath.
- Identify the destination and defined state of selected bonding point.
- Record the equipment or control-document revision supporting this functional block.
- Check this application limit in the project design: Sheath voltage behavior requires the cable bonding design.

## Important distinction

Sheath voltage behavior requires the cable bonding design. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.

## Facts

- Representation: Functional block
- Installation focus: Switchyards
- Input / boundary: Cable sheath
- Output / connection: Selected bonding point
- Lookup label: CSSBA is a library lookup label, not a standard device designation.

## Public references

- [Earthing connections](https://www.electrical-installation.org/enwiki/Earthing_connections) — Schneider Electric, Electrical Installation Guide. Public technical context for switchyard earthing and lightning interfaces. Protective earthing, bonding and earth-electrode interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.