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A circle enclosing three or four short radiating strokes.
Also known as: Equipotential bonding, Bonding point, Circle with lines inside, Potential equalisation
Equipotential bonding ties exposed metalwork together so that no dangerous voltage can appear between two things a person might touch at once. It is not earthing: bonded metalwork need not be connected to earth at all, only to itself.
Denotes an equipotential bonding connection point, tying conductive parts to a common potential.
Contexts: Electrical equipment
Differs from earthing: bonding equalises potential between accessible parts and does not require a connection to the general mass of earth.
Contexts: Electrical equipment
Is what prevents a touch voltage between two simultaneously accessible conductive parts, which is the specific hazard it addresses.
Contexts: Electrical equipment
A circle enclosing three or four short straight strokes radiating from a common point at its centre.