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ARW

On 05/06/2018 10:59, wrote:
On Tuesday, 5 June 2018 00:44:16 UTC+1, Dave Liquorice wrote:
On Mon, 4 Jun 2018 21:14:16 +0100, ARW wrote:

If you are removing the ballast and starter then it makes more sense to
wire up the fitting as follows.

One pin at one end of the fitting to live, one pin at the other end of
the fitting to neutral and a shorting wire between the other two pins.

Or install an LED "starter" whilst still taking the choke and PF
capacitor out of the circuit. In the fittings I have that's simply
remove wires from choke, join in terminal block. Disconnect the wire
to live on the capacitor and make safe.

This is because most LED replacement tubes are fed by a driver at one
end of the tube and the other end of the LED tube is a shorted circuit.

Ah, yes engaging brain the other end has to be a short circuit for
the swap tube and use LED "starter" method to work.

Wiring this way as opposed to your suggestion of a LN at just one end
prevents a short on the lighting circuit should the lamp be fitted the
wrong way around and will allow the LED tube to work no matter which way
round it is installed.

And if a conventional florry is fitted the filaments are in series as
they should be... Won't strike but won't suffer unless left on with
the ends glowing for a long time, FSVO "long".

240v on 12v or so of filaments will kill them instantly.

??????

--
Adam