D—4

The machine-running times, together with details of outages and shutdowns, are as follows: —

(&) Transmission and Distribution The most severe weather conditions ever recorded in the north Canterbury and Coleridge districts were experienced during the year. Sixteen inches of snow fell at Coleridge on 14th July, and lay for seven weeks in sheltered places near Coleridge village. On Bth August heavy snow did considerable damage to the ColeridgeHororata transmission-lines, Coleridge Station being isolated from the system for 9 hours 16 minutes. On 31st August and Ist September a violent north-west gale swept across Canterbury, doing further damage to transmission and telephone lines. On each of these occasions supply to consumers was seriously interrupted, the worst conditions being experienced during the July outage, when South Canterbury Power Board was without supply for 10 hours 5 minutes. Ashburton Power Board for 21 hours 13 minutes, Waitaki Power Board for 18 minutes, North Canterbury Power Board for 36 hours., and Banks Peninsula Power Board for 35 hours. There was also a number of short interruptions to the West Coast supply due to the opening of the 0.C.8.s at Coleridge during the storm. Supply to the West Coast in general was satisfactory throughout the year, there being no failures on the transmission-lines between Coleridge and that area. Routine inspections, insulator testing, and general maintenance was performed.

15

— Running Time. Idle Time. Outage Time (under Repair). Outage Time on Demand. Percentage Availability for Service. Coleridge h. m. Percentage. h. m. Percentage. h. m. h. m. Percentage. 1 6,501 30 74-3 2,141 20 24-4 117 10 : 98-65 2 6,203 00 70-8 1,964 10 22-4 590 50 2 0 93-26 3 4,946 25 56-5 1,919 45 21-9 1,893 50 78-4 4 1,916 11 21-9 5,027 19 57-4 1,816 30 79-3 5 1,816 30 20-7 6,943 30 79-3 100-0 6 1,611 55 18-4 7,045 15 80-5 102 50 98-83 7 1,674 15 191 7,071 35 80-7 14 10 99-8 8 2,999 00 34-2 5,524 30 63-1 236 30 97-31 9 3,238 35 37-0 3,841 15 43-7 1,680 10 80-7 Waitahi 1 7,790 45 88-9 774 50 8-9 194 25 97-8 o 7,700 07 87-9 991 13 11-3 64 40 99-26 3 6,217 08 71-0 2,365 27 27-0 177 25 97-98 4 5,842 07 66-7 2,739 43 31-8 178 10 97-97 Arnold 1 [ 7,978 25 1 91-1 1 1 781 35 I 91-08 2 1 8,758 05 99-9 | 1 55 99-98 Bdbson 1 107 09 1-2 8,652 51 98-8 100-0 2 117 48 1-3 8,642 12 98-7 100-0 3 114 55 1-3 8,645 05 98-7 100-0 4 17 39 0-2 2,375 52 27-1 6,366 29 27-3 Highbank* Main | 2,559 04 35-9 1 4,568 56 64-1 1 100-0 * From 8th June, 1945, only.