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BSTJ 8: 2. April 1929: Purified Textile Insulation for Telephone Central Office Wiring. (Glenn, H.H.; Wood, E.B.) (1929)

leaf 9

An illustration from BSTJ 8: 2. April 1929: Purified Textile Insulation for Telephone Central Office Wiring. (Glenn, H.H.; Wood, E.B.), 1929, leaf 9
has been found suitable for cotton testing and 100 degrees Fahrenheit and 87 per cent relative humidity for silk. The number of turns of yarn or thread wound around the electrodes will vary with the size of the thread since the winding space is fixed and a single layer of thread is applied. For No.… … Fig. 7—Humidity cabinet disassembled. The distance between the electrodes is not particularly critical. That is, it is not important, for example, whether the distance is Ys in. or % in. It is important, however, that having decided upon a certain separation, say % in., this separation be…

Silk · Cotton · Insulation · Insulating · Washed · Purified · Textile · Humidity · Textiles · Unwashed · Insulation resistance · Washed silk · Relative humidity · System technical · Textile insulation · Purified textile · Wire insulated · Technical journal · Bell system · Degrees fahrenheit

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