D.—l.

Actual Mileages and Sizes of Overhead Conductors in use at 31st March, 1935.

No returns received from Auckland, Christchurch, and Heathcote. ELECTRICAL SUPPLY AND ELECTRICAL WIRING REGULATIONS. The Electrical Supply and Electrical Wiring Regulations, which were gazetted in 1927, with the intention of revising same after two years' trial, occupied the attention of the Regulations Advisory Committee throughout the year. This revision has now been completed, and the new regulations have been submitted to the Executive Council for signing by His Excellency the Governor-General. INSPECTION OE ELECTRIC LINES, ALSO PRIVATE GENERATING-PLANTS. The annual departmental inspection of the electric lines in operation was carried out in the case of eighty-six supply authorities last year, and any defects or breaches -of the regulations which came under notice were duly notified to the supply authorities concerned. These inspection activities of the Department undoubtedly tend towards the maintaining of a high standard, and the general willingness on the part of the supply authorities to co-operate in a general observance of the regulations governing such matters is of great assistance to this Department.

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Copper. Aluminium. ~ed Copperweld spoored Conductors " C ° PPer ' (8 W G) I I Breakml <»- ! B aget" ™«- B ag e e a s k ' ™e 3 . Miles. Miles. » Miles, M" Miles. 1 ' , ! 7/20 .. 6,726 470 .. .. 1 470 7/18 .. 10,536 325 " " 395 7/17 .. 2,338 21 2? 7/16 .. 18,931 173 22 . . 142 45 i77 " 173 7/15 .. 164 1 18 123 ? 7/14 .. 10,528 43 55 49 .. .. .. 2 .. 587 43 7/13 .. 1,050 4 7/12 .. 416 1 150 1 3 5 3 o 7/11 3 " 7/10 .. 33 2 25 10 51 "a 7/9 .. 79 .. is .. 5 .. ;; ;; ;; 7/ 8 J 4 3 .. .. 3 7/7 1 19/18 .. 332 1 , 19/17 .. 588 10 lft 19/16 .. 1,847 13 19/15 168 19/14 .. 590 1 1 19/13 .. 2,462 2 2 19/12 .. 565 2 19/10 2 37/16 .. 49 37/15 .. 395 37/14 .. 132 37/13 .. 23 37/12 • • 77 246 . , .. !! !! 66/13 .. 2 .. .. . . * 12 •• .. 2,749 112 .. .. 2 .. 101 i i2 " !! " " 'ii 3 11 .. .. 4 10 •• .. 10,246 483 .. .. 376 .. 318 1 426 2 .. '! 30(i) " 486 8 .. .. 12,769 295 .. .. 3,165 122 6,698 66 1,140 1 484 7 . • , 772 6 145 91 6 6 306 1 60 . . 17 .. 208 1 4 .. 599 79 .. 2 2 .. .. 66 0 .. 78 2/o io 59 .. .. ;: :; 3/0 986 3/13 3/12 .. 91 1 28 1 3/11 5 3/10 .. 24 .. 10 3/9 10 3/8 9 4/16 .. 13 4/14 253 1 1 5/14 207 2/10 .. 43 6/-144 'i 9 :: " ;■ 7/-186 41 7/-136 .. 39 .. 164 7/-0834 29 7/-0743 52 11 ;; "n 7-H2 .. 2 1/-U2 284( 2 ) 9 9 Miscellaneous .. 93 24 1 .. .. .. 3 l 2 .. .. .. .. 25 Totals .. 85,9231,985 529 1 4.269 123 7,327 69 1,975 3 2,381 14 314 9 2 204 ' ■ . Grand total, 102,718 miles.