The invention relates to a low-pressure discharge lamp comprising a glass
discharge vessel (1) which is substantially tubular in form and which is
closed in a gas-tight manner on the ends thereof, a filling consisting of
an inert gas mixture and quicksilver, in addition to an optional luminous
coating on the inner wall of the discharge vessel (1). Two current supply
inlets are respectively melted into the two ends of the discharge vessel
(1), with a helical electrode secured thereto (5). The invention is
characterized in that in order to increase the switching resistance of
the lamp in a cold start operation, at least one other electrode (7,8)
made of a conductive material is arranged in the region between the
helical electrode (5) and the connecting end of the discharge vessel (1)
and one end of said other electrode (7, 8) is electrically connected to
one of the two current supply inlets (3,4).