2 autotransformer energisation notices (see photos) seen at Burnham station on 1st October. For those who can't view the photos, here's the main information (mods welcome to edit below as quotes):
Notice 1-
Network Rail
The existing electrified area shall be extended; STOCKLEY J/18/07B TO MAIDENHEAD MLN/39/582
AUTOTRANSFORMER SYSTEM located adjacent to the Down Main from 11m 20ch to 24m 48ch
ASSOCIATED ATF SEALING ENDS, SWITCHES & ACROSS TRACK FEEDS
Hayes SATS at 11m 20ch (Main Line Side)
Slough ATS at 18m 0ch (Main Line Side)
Maidenhead MPATS 24m 4h (Relief Line Side)
WARNING
The new Autotransformer System & Associated Equipment shall be energised at 25,000 Volts AC and must be considered LIVE and DANGEROUS
From NOW
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Notice 2 -
Network Rail
The existing electrified area shall be extended; STOCKLEY MLN/18/964 TO MAIDENHEAD MLN/39/582
AUTOTRANSFORMER SYSTEM located adjacent to the Up Relief from 11m 60ch to 24m 48ch
ASSOCIATED ATF SEALING ENDS, SWITCHES & ACROSS TRACK FEEDS Swallowfield at 11m 60ch (Relief Line Side)
Slough ATS at 18m Och (Main Line Side) Maidenhead MPATS 24m 48ch (Relief Line Side)
WARNING
The new Autotransformer System & Associated Equipment shall be energised at 25,000 Volts AC and must be considered LIVE and DANGEROUS
From 06:00 hours on 13/10/2020