Jul 24, 2018 at 06:06 AM Author: Fluorescent05
What causes an arc to strike between the two pieces of the filament?

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Jul 24, 2018 at 06:39 AM Author: dor123
See here . This is usually occurs on preheat/switchstart, when the filament is broken. As this is the easiest place for the gas to ionize. This is very similar to the glow of a neon indicator or starter. But this is very bright for a glow discharge between the two pieces of the filament.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Jul 24, 2018 at 02:38 PM Author: Fluorescent05
This is from the blue wire to neutral of an LPF trigger start ballast. The ballast neutral is disconnected because the lampholder is circuit interrupting and the lamp is only partially in the socket.

I can't pretend a stranger is a long awaited friend. -Neal Peart

Aug 11, 2018 at 08:03 AM Author: Fluorescent05
This lamp gets really angry when I put it on an electronic instant start ballast now.

I can't pretend a stranger is a long awaited friend. -Neal Peart