Information on the Tunnel Boring Machine Power supply route can be found on the HS2 commonplace Hillingdon website – scroll down to TBM Power supply route.

If you do not feel you have found the correct answer then please email both HS2 Helpdesk and UKPN It would of course be very helpful if you also forwarded your reply to ERA

CONTACTING UKPN DURING WORKS -Should anyone need to contact UKPN during their works they can be contacted on:
Monday to Friday 0800 028 4587 or
Should there be any sort of emergency please call their
24 hour helpline on 0800 316 3105 or 105 from a landline or mobile.