DC cable rerouting Comparison of 3 options
Goals Remove cable trays above Splitter magnets Exchange and re-route PVC insulated cables by PVC-free ones
MDLV_ All the DC cables feeding the magnets upstream MDLV_ to be exchanged
Current state 2 cable trays: OD115 and OD /34 DC cables must be exchanged in OD115 14/32 DC cables must be exchanged in OD116 OD 115 OD 116 OD 115 OD 116 To be exchanged remaining
3 options Cable junction A B C OptionDose rateExtra length A100 uSv0 m B15 uSv40 m C1 uSv130 m
MDLV_ Option A
OPTION B DANS LA SECTION DE 8m, BIEN AVANT LES PREMIERS MOUVEMENTS DECHELLES
Option C: add one rack per cable tray in TA801 Il existe déjà 4 RAL ou la jonction est faite entre câbles contrôles venant du BA80 et allant en TCC2 ou TDC2. Les câbles entrant et sortant passent à travers le caillebotis entre celui-ci et léchelle supérieure
3 options: dose cost OperationDuration (min)# peopleABC Disconnect 1 cable Cut 1 cable Remove 10 m cable Install 10 m cable Reconnect 1 cable Make new cable junction TOTAL IN uSv Cable trays modification not included The best solution seems to be option A Removing and pulling cables is time consuming and hence highly dose costing