New Zealand Gazette – 1935 – No. 65

Page 2525

✨ Electrical Engineering Tables

SEPT. 6.] THE NEW ZEALAND GAZETTE. 2525

V.I.R. COPPER—continued.
(G.) 19/·083 in.

Constants.—Area (copper), 0·1028 sq. in.; diameter (covered), 0·663 in.; loading factor, 1·6; maximum tension in conductor, 2,570 lb.; weight of covered conductor, 0·533 lb. per foot.

Span.	Datum.	Degrees Fahrenheit above Datum.
	0.	20.
	Ten.	Sag.
Ft.	lb.	Ft.in.
120 ..	2498	0 4½
140 ..	2473	0 6½
160 ..	2445	0 8½
180 ..	2415	0 11

TABLE IV.—BARE (H.D.) COPPER.
Wind, 18 lb. per square foot of diametral plane.

Constants.—Coefficient of thermal expansion = 9·45 × 10⁻⁶ per degree Fahrenheit; maximum allowable stress = 25,000 lb. per square inch; modulus of elasticity = 18 × 10⁶ lb. per square inch.

(A.) 1/·160 in. (8 S.W.G.).

Constants.—Area, 0·02011 sq. in.; diameter, 0·160 in.; loading factor, 3·25; maximum tension in conductor, 503 lb.; weight, 0·0775 lb. per foot.

Span.	Datum.	Degrees Fahrenheit above Datum.
	0.	20.
	Ten.	Sag.
Ft.	lb.	Ft.in.
180 ..	398	0 9½
220 ..	354	1 4
260 ..	310	2 0
300 ..	271	3 3
340 ..	242	4 8
380 ..	221	6 4

(B.) 7/·044 in.

Constants.—Area, 0·01064 sq. in.; diameter, 0·132 in.; loading factor, 4·86; maximum tension in conductor, 266 lb.; weight, 0·0418 lb. per foot.

Span.	Datum.	Degrees Fahrenheit above Datum.
	0.	20.
	Ten.	Sag.
Ft.	lb.	Ft.in.
180 ..	139	1 2
220 ..	104	2 5
260 ..	84	4 2
300 ..	75	6 3
340 ..	70	8 7
380 ..	66	11 5

(C.) 7/·052 in.

Constants.—Area, 0·01483 sq. in.; diameter, 0·156 in.; loading factor, 4·17; maximum tension in conductor, 371 lb.; weight, 0·0583 lb. per foot.

Span.	Datum.	Degrees Fahrenheit above Datum.
	0.	20.
	Ten.	Sag.
Ft.	lb.	Ft.in.
180 ..	237	1 0
220 ..	190	1 10
260 ..	155	3 2
300 ..	133	4 11
340 ..	120	7 0
380 ..	112	9 4

PDF embedding disabled (Crown copyright)

View this page online at:

VUW Te Waharoa — NZ Gazette 1935, No 65

NZLII — NZ Gazette 1935, No 65

Parliament House (depicted) was completed in 1918 and remains the primary seat of Parliament.

✨ LLM interpretation of page content

🏗️ Still-Air Sag and Tension Tables for Electrical Conductors (continued from previous page)

Domain🏗️ Infrastructure & Public Works
KeywordsElectrical Conductors, Sag, Tension, Tables, Engineering

As the Gazette has been published for more than 185 years, copyright status depends on the publication date of each issue:

1840–1925 (Public Domain): Issues of the New Zealand Gazette and Provincial Gazettes from this period are in the public domain, as the term of Crown copyright (100 years) has expired. Mechanical reproductions (e.g., scanned PDFs) of these public domain documents do not attract new copyright.
1926–1999 (Crown Copyright): Issues from this period remain subject to Crown copyright. Usage of these issues in this project is "Fair Dealing" for research purposes and consistent with the spirit of the open-access principles championed by NZGOAL, ie, "The default licensing position under ... NZGOAL is the Creative Commons Attribution 4.0 International licence ... [t]o the greatest extent possible, agencies should apply this licence to copyright material on their websites"
2000–Present (CC-BY 3.0 NZ): Gazette issues published on gazette.govt.nz are Crown copyright but are explicitly licensed by the Department of Internal Affairs under the Creative Commons Attribution 3.0 New Zealand licence (CC-BY 3.0 NZ). This project redistributes this content in accordance with those terms.

Nothing in this project is intended to infringe copyright, trademark law or personal privacy. Please contact me immediately if you have any concerns.

Third-Party Content

Where third-party content (e.g., notices submitted by external organisations) is identified within the Gazette, users should satisfy themselves regarding the copyright status of that specific content, as it may be subject to different ownership terms than the Gazette itself.

Sources and Attribution

NZ Gazette Sources

The primary sources for the issues of the NZ Gazette indexed by this project are:

New Zealand Gazette Archive, provided by Victoria University Library, copyright 2008 LexisNexis NZ Limited, Crown Copyright of New Zealand Gazette Office
- Issues from 1841-2008, including the New Munster, New Ulster, and Provincial Gazettes
New Zealand Gazettes by New Zealand Legal Information Institute (note: "NZLII is not the copyright owner in the source documents published on NZLII")
- Issues from 1913-1999
Gazette.govt.nz, Crown copyright / licensed by the Department of Internal Affairs under CC-BY 3.0 NZ
- Issues from 2000-2017

Additional Sources

Wellington City Recollect have made available a comprehensive and excellent-quality scan of the Wellington Provincial Gazette which was used to fill in a number of issues missing from Victoria University's Gazette Archive; in particular, all 1856 issues, issues 22-34 for 1864 and issues 9-19 for 1870.
27 issues of The New Zealand Advertiser and Bay of Islands Gazette (1840) were sourced from Papers Past (public domain).
Gazette Extraordinary No. 1 (1840), held at the Alexander Turnbull Library, Wellington, New Zealand. Imaged by Luke Howison at the National Library reading rooms; PDF released into the public domain.

PDF Icon

The PDF PDF Icon was made by Good Ware, CC BY-SA 4.0.

Masthead

The logo in the header is an edited version of “Winning Coat of Arms Competition Entry, 1908” by Archives New Zealand, CC BY 2.0 (found via Wikipedia).

Who made this?

I'm Luke Howison, a freelance web developer with an interest in genealogy. I have created several websites for genealogical research, such as NZ Ancestor Search Helper.