| 1889 - 758 pages
...securely attached to insulators fixed to the supports. The factor of safety for the suspended wires shall be at least 6 and for all other parts of the...12, taking the maximum possible wind pressure at 50 pounds per square foot. No addition need be made for a possible accumulation of snow. 4. Every support,... | |
| 1889 - 544 pages
...insulators fixed to the supports. The factor of safety for the suspended wires shall be at least six, and for all other parts of the structure at least 12, taking the maximum possible wind pressure at 501b. per square foot. No addition need be made for a possible accumulation of snow. 4. Every support,... | |
| William Joseph Dibdin - 1902 - 598 pages
...line, or unequal lengths of span. The factor of safety shall be for aerial lines and suspending wires at least 6, and for all other parts of the structure...12, taking the maximum possible wind pressure at 50 Ib. per square foot. No addition need be made for a possible accumulation of snow. Every support, if... | |
| William Joseph Dibdin - 1902 - 620 pages
...line, or unequal lengths of span. The factor of safety shall be for aerial lines and suspending wires at least 6, and for all other parts of the structure...12, taking the maximum possible wind pressure at 50 Ib. per square foot. No addition need be made for a possible accumulation of snow. Every support, if... | |
| John Shiress Will - 1903 - 570 pages
...the line, or unequal lengths of span. The of. factor of safety for aerial lines and suspending wires shall be at least 6 and for all other parts of the...12, taking the maximum possible wind pressure at 50 pounds per square foot. No addition need be made for a possible accumulation of snow. Every support,... | |
| John Shiress Will - 1903 - 556 pages
...line, or unequal lengths of span. The offactor of safety shall be for aerial lines and suspending wires at least 6, and for all other parts of the structure...12, taking the maximum possible wind pressure at 50 pounds per square foot. No addition need be made for a possible accumulation of snow. Every support,... | |
| William Brew - 1911 - 206 pages
...overhead lines at least 5, and for wooden poles at least 10, and for iron or steel structures at least 6, taking the maximum possible wind pressure at 50 Ibs. per square foot. No addition need be made for a possible accumulation of snow. 3. Attachment of Overhead Lines. —... | |
| 1890 - 830 pages
...•ind the conductors and suspending wires (if any) must be securely attached to insulators fixed to the supports. The factor of safety shall be at least 6,...least 12, taking the maximum possible wind pressure at SO Ibs. per square foot. 6. Every aerial conductor shall be protected by efficient lighting protectors.... | |
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