D.—l

Table V—continued. Route-miles of Transmission-lines erected at 31st March, 1932.

Circuit-miles op Transmission-lines erected at 31st March, 1932. Size of wire .. .. 7/16 7/14 7/12 19/16 19/13 No. 0. 37/13 Underground cableMiles .. .. 45-55 223-25 45-93 82-12 298-70 23-99 5-77 0-51 Total circuit mileage, 725 • 82. All circuits are three-phase, arid all wires are of copper.

Table VI. —Waikato Electric-power Supply.—Route-miles of Power Board Lines at 31st March, 1932.

(a) Also 172 miles of underground cable. (b) Also 107 miles of 400 v. lines on 11 kv. poles ; 0-67 miles of 11 kv. underground cable, and 0-3 miles of 400 v. underground cable. (c) Also 336-64 miles of 400 v. lines on 11 kv. poles; 60 miles of 400 v. lines on 3,000 v. poles, and 1 mile of 11 kv. underground cable. (d) Also 201 miles of 400 v. lines on 11 kv. poles. (e) Also 2-5 miles of 3,000 v. lines and 109*68 miles of 400 v. lines on 11 kv. poles ; 55-5 miles of 400 v. lines on 3,000 v. poles and 0*25 mile of 11 kv. underground cable. (/) Also 6-74 miles of 11 kv. underground cable. (g) Also 56 miles of 400 v. lines on 3,000 v. poles. (h) Also 16-8 miles of 3,000 v. lines and 21-73 miles of 400 v. lines on 11 kv. poles, and 127-73 miles of 400 v. lines on 3,000 v. poles. (i) Also 25 miles of 400 v. lines on 11 kv. poles. (j) Also 1 mile of 3,000 v. lines and 9 miles of 200 v. and 400 v. lines on 6,000 v. poles; 4-5 miles of 200 v. and 400 v. lines on 3,000 v. poles; and 0-5 mile of 3,000 v. underground cable. (k) Also 68 miles of 400 v. lines on 11 kv. poles and 0-155 mile of 11 kv. underground cable.

79

How supported. Circuit. ! Miles. 110,000 volt .. Steel supported .. .. Double .. .. 99-73 110,000 volt .. i Steel supported .. .. Single .. .. 2-68 50,000 volt .. j Steel pole supported .. .. Double .. .. 19-75 110,000 volt .. j Wood pole supported .. .. Single .. .. 96-56 SOjOOO volt .. j Steel supported .. .. Single .. .. 24-52 50,000 volt .. Wood pole supported .. .. Single .. .. 285-44* 11,000 volt .. ! Steel supported .. .. Single .. .. 5-77 11,000 volt .. ; Wood pole supported .. .. Single .. .. 0-75 11,000 volt- .. ■ Wood pole supported .. .. Double .. .. 28-77 11,000 volt .. Wood pole supported .. .. Triple .. .. 0-55 11,000 volt .. Wood pole supported .. .. Quadruple .. .. 2-86 Underground cables .. .. Three single .. .. 0-17 Total route-miles.. j .. .. 567-55* * Note. — The Penrose-Henderson-Takapuna line contains 8-93 miles of duplicate pole-line and this is counted as 17-86 miles of erected single-circuit line.

1 [ 1 Voltage .. .. ,. I 11,000. 6,600. 3,000. 400. Total Iloute-niiles. Number of Cireuits .. .. 1. 2. 4. 1. 2. 1. 2. 1. 2. Auckland Power Board .. 135-00 .. .. 127-5 .. .. j .. 593-25 25-5 881-25(a) Waitemata Power Board 150-05 5-45 .. .. .. 0 - 40 .. 290-00 .. 445-90(6) Thames Valley Power Board 455-09 84-5 .. .. .. 59-56 ! .. 158-30 .. 757-45(c) Franklin Power Board .. j 342-00 7-00 .. .. .. .. .. 130-00 .. 479-00(rf) Central Power Board .. 201-98 6-58 0-67 .. .. 93-52 .. 205-05 .. 507-80(e) Hamilton Borough Council . . .. .. . . . . .. .. 47-30 .. 47 • 3(f) Cambridge Power Board .. .. .. .. .. 112-00 .. 72-00 .. 184-00(</) Te Awamutu Power Board 58-63 12-00 .. .. .. 158-65 4-75 76-79 .. 310-82(A) Waitomo Power Board .. 72-25 7-00 .. .. .. .. .. 20-25 0-5 100-00(i) Tourist Department, .. .. .. 22-5* 5-5* 9-00 .. 13-50 .. 50-50(j) Rotorua Bay of Plenty Power Board 215-65 .. .. .. .. .. .. 27-00 .. 242-65(A) Totals .. 1,630-65 122-53 0-67 j» 5-5 433-13 4-75 1,633-44 26-0 4,006-67 * 6,000 volts.