✨ Electrical Supply Regulations Tables
2386
THE NEW ZEALAND GAZETTE.
[No. 48
(B.) 7/·044 in.
Constants.—Area (copper), 0·0105 sq. in. ; diameter (covered), 0·280 in. ; loading factor, 6·2 ; maximum tension in conductor, 266 lb. ; weight of covered conductor, 0·0687 lb. per foot.
| Span. | Datum. | Degrees Fahrenheit above Datum. |
|---|---|---|
| 0. | 20. | |
| Ten. | Sag. | |
| Ft. | lb. | Ft. in. |
| 180 | 53 | 5 3 |
| 220 | 49 | 8 6 |
| 260 | 47 | 12 4 |
| 300 | 46 | 16 10 |
| 340 | 45 | 22 0 |
| 380 | 44 | 27 9 |
| 40. | 60. | 80. | 100. |
|---|---|---|---|
| Ten. | Sag. | Ten. | Sag. |
| lb. | Ft. in. | lb. | Ft. in. |
| 49 | 5 8 | 47 | 5 11 |
| 47 | 8 11 | 46 | 9 1 |
| 45 | 12 9 | 45 | 12 11 |
| 45 | 17 2 | 44 | 17 5 |
| 44 | 22 5 | 44 | 22 7 |
| 44 | 28 1 | 44 | 28 4 |
(C.) 7/·052 in.
Constants.—Area (copper), 0·01483 sq. in. ; diameter (covered), 0·327 in. ; loading factor, 5·65 ; maximum tension in conductor, 371 lb. ; weight of covered conductor, 0·0882 lb. per foot.
| Span. | Datum. | Degrees Fahrenheit above Datum. |
|---|---|---|
| 0. | 20. | |
| Ten. | Sag. | |
| Ft. | lb. | Ft. in. |
| 180 | 87 | 4 1 |
| 220 | 78 | 6 10 |
| 260 | 74 | 10 0 |
| 300 | 72 | 13 10 |
| 340 | 70 | 18 2 |
| 380 | 69 | 22 11 |
| 40. | 60. | 80. | 100. |
|---|---|---|---|
| Ten. | Sag. | Ten. | Sag. |
| lb. | Ft. in. | lb. | Ft. in. |
| 78 | 4 7 | 74 | 4 9 |
| 73 | 7 3 | 71 | 7 6 |
| 71 | 10 6 | 70 | 10 8 |
| 70 | 14 3 | 68 | 14 5 |
| 68 | 18 6 | 68 | 18 9 |
| 68 | 23 4 | 67 | 23 7 |
(D.) 7/·064 in. (7/16 S.W.G.).
Constants.—Area (copper), 0·0225 sq. in. ; diameter (covered), 0·388 in. ; loading factor, 4·31 ; maximum tension in conductor, 562 lb. ; weight of covered conductor, 0·1387 lb. per foot.
| Span. | Datum. | Degrees Fahrenheit above Datum. |
|---|---|---|
| 0. | 20. | |
| Ten. | Sag. | |
| Ft. | lb. | Ft. in. |
| 180 | 175 | 3 2 |
| 220 | 157 | 5 4 |
| 260 | 148 | 7 11 |
| 300 | 143 | 10 10 |
| 340 | 140 | 14 4 |
| 380 | 138 | 18 2 |
| 40. | 60. | 80. | 100. |
|---|---|---|---|
| Ten. | Sag. | Ten. | Sag. |
| lb. | Ft. in. | lb. | Ft. in. |
| 155 | 3 7 | 147 | 3 10 |
| 146 | 5 9 | 141 | 5 11 |
| 141 | 8 4 | 137 | 8 6 |
| 138 | 11 3 | 136 | 11 6 |
| 136 | 14 8 | 134 | 14 11 |
| 135 | 18 6 | 133 | 18 9 |
(E.) 19/·052 in.
Constants.—Area (copper), 0·0403 sq. in. ; diameter (covered), 0·482 in. ; loading factor, 3·27 ; maximum tension in conductor, 1008 lb. ; weight of covered conductor, 0·2324 lb. per foot.
| Span. | Datum. | Degrees Fahrenheit above Datum. |
|---|---|---|
| 0. | 20. | |
| Ten. | Sag. | |
| Ft. | lb. | Ft. in. |
| 180 | 595 | 1 7 |
| 220 | 497 | 2 10 |
| 260 | 434 | 4 6 |
| 300 | 396 | 6 7 |
| 340 | 373 | 9 0 |
| 380 | 357 | 11 8 |
| 40. | 60. | 80. | 100. |
|---|---|---|---|
| Ten. | Sag. | Ten. | Sag. |
| lb. | Ft. in. | lb. | Ft. in. |
| 442 | 2 1 | 390 | 2 5 |
| 399 | 3 6 | 363 | 3 10 |
| 374 | 5 3 | 347 | 5 8 |
| 355 | 7 4 | 337 | 7 9 |
| 343 | 9 10 | 331 | 10 2 |
| 335 | 12 6 | 326 | 12 10 |
Next Page →
PDF embedding disabled (Crown copyright)
View this page online at:
VUW Te Waharoa —
NZ Gazette 1927, No 48
NZLII —
NZ Gazette 1927, No 48
✨ LLM interpretation of page content
🏗️
Electrical Supply Regulations, 1927 (continued)
(continued from previous page)
🏗️ Infrastructure & Public WorksRegulations, Electrical Supply, Public Works Act, Inspections, Fees, Compliance, Dangerous Lines, Penalties, Tables, Constants, Span, Tension, Sag