Convention, Volume 42;Volume 73 |
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Halaman 214
... covering their cables , although some still adhere to the practice of installing shelves in the manholes with- out employing any form of covering . A few companies cover all of their cables where exposed in manholes . The general prac ...
... covering their cables , although some still adhere to the practice of installing shelves in the manholes with- out employing any form of covering . A few companies cover all of their cables where exposed in manholes . The general prac ...
Halaman 215
National Electric Light Association. Convention. cement covering . Tests were made by the New York Edison Company in 1916 to determine the relative protection against external fire afforded by the two forms of covering . Two samples were ...
National Electric Light Association. Convention. cement covering . Tests were made by the New York Edison Company in 1916 to determine the relative protection against external fire afforded by the two forms of covering . Two samples were ...
Halaman 249
... covering for a foot or less in a maximum of six manholes to locate a fault on a 20,000 foot feeder , and the cost of replacement would be insignificant . It is possible to apply the cement direct to the cable without any binder , but ...
... covering for a foot or less in a maximum of six manholes to locate a fault on a 20,000 foot feeder , and the cost of replacement would be insignificant . It is possible to apply the cement direct to the cable without any binder , but ...
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