News | Published:

Electrical Equipment of Buildings

Nature volume 150, page 119 (25 July 1942) | Download Citation

Subjects

Abstract

THE Institution of Electrical Engineers has just issued recommended War Emergency Relaxations of the Regulations for the Electrical Equipment of Buildings (llth Edition), copies of which are available from the Institution free of charge, except where a number of copies is required. Regulation No. 304 relating to voltage-drop is amended, and the current ratings of certain cables are increased. The current-rating tables affected are Nos. 5 to 9 inclusive and 16. Two new tables, 5(A) for small single-core cables of earthed concentric wiring, and 10(A) for mineral insulated cables of 0-007 sq. in. cross-sectional area and above, are now added. Table 10(A) takes the place of Tables 10, 11 and 12 referred to in clause 302(B) for the cables in question. The purpose of the relaxations is to economize in materials.

About this article

Publication history

Published

DOI

https://doi.org/10.1038/150119b0

Authors

    Comments

    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

    Newsletter Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing