Modern electrical construction; a reliable, practical guide for the beginner in electrical construction, showing the latest approved methods of installing work of all kinds according to the safety rules of the National board of fire underwriters (1905)
Horstmann, Henry C[harles], 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. J. Drake & Co. · leaf 57
ce, it ismuch better to have the board set out from the wall. Thespace back of the board sliould not be closed in, except bygrating- or netting either at the sides, top or bottom, as suchan enclosure is almost sure to be used as a closet for clothingor for the storage of oil cans, rubbish, etc. An… … Figure 24 of opposite polarity must be made as great as practicable, andmust not be less than those given for tablet-boards (see No.53 A). The switchboard may be located in any suitable place in the RESISTANCE BOXES 55 dynamo room. It should generally be placed in a centralposition as close as…
Electrical engineering
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