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Книги Книги 1 - 10 з 24 у Must be placed on the switch board, or, if not thereon, at a distance of a foot from....
" Must be placed on the switch board, or, if not thereon, at a distance of a foot from combustible material, or separated therefrom by a non-inflammable, non-absorptive, insulating material. "
Electric Wiring for the Use of Architects, Underwriters, and the Owners of ... - Сторінка 69
автори: Russell Robb - 1896 - 183 стор.
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Convention

National Electric Light Association. Convention - 1892
...combustible material, or separated therefrom by asbestos or cement. LIGHTNING ARRESTERS — Must be : 1. Attached to each side of every overhead circuit connected with the station. 2. In plain sight. 3. On the switchboard or in an equally accessible place, away from combustible material....
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1892 - 176 стор.
...comustible material, or separated therefrom by asbestos or cement. LIGHTNING ARRESTERS—Must be: 1. Attached to each side of every overhead circuit connected with the station. 2. In plain sight. 3. On the switchboard, or in an equally accessible place, away from combustible...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 128 стор.
...non-absorptive, insulating material. 6. LIGHTNING ARRESTERS— a. Must be attached to each side of 61 b. Must be mounted on non-combustible bases in plain sight on the switchboard, or in an equally accessible place, away from combustible material. c. Must be connected with at least two...
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Electrical Engineer, Том 17

1894
...foot from combutalble material, or separated therefrom by asbestos or cement. Lightning Arretiere. 1. Must be attached to each side of every overhead circuit connected with the station. 2. Must be In plain sight. 8. Must be on the switchboard, or In an equally accessible place, away from...
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The Electrical Transmission of Energy: A Manual for the Design of Electrical ...

Arthur Vaughan Abbott - 1895 - 586 стор.
...from combustible material, or separated there from by asbestos or cement. 122. LIGHTNING ARRESTERS. 1. Must be attached to each side of every overhead circuit connected with the station. 2. Must be in plain sight. 3. Must be on the switchboard, or in an equally accessible place, away from...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...separated therefrom by a non-inflammable, non-absorptive, insulating material. 6 LIGHTNING ARRESTERS: a. Must be attached to each side of every overhead...accessible place, away from combustible material. WIRING RULES AND REQUIREMENTS. c. Must be connected with at least two " earths " by separate wires,...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 213 стор.
...separated therefrom by a non-inflammable, non-absorptive, insulating material. 6. LIGHTNING ARRESTERS: — a. Must be attached to each side of every overhead...non-combustible bases in plain sight on the switchboard, or in an equally accessible place, away from combustible material. c. Must be connected with at least two...
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...separated therefrom by a non-inflammable, non-absorptive, insulating material. 6. LIGHTNING ARRESTERS:— a. Must be attached to each side of every overhead...non-combustible bases in plain sight on the switchboard, or in an equally accessible place, away from combustible material. c. Must be connected with at least two...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...separated therefrom by a non-inflammable, non-absorptive, insulating material. 6. LIGHTNING ARRESTERS: — a. Must be attached to each side of every over-head...mounted on non-combustible bases in plain sight on the switch board, or in an equally accessible place, away from combustible material, c. Must be connected...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...or in any equally accessible place, away from combustible material. WIRING RULES AND REQUIREMENTS. c. Must be connected with at least two " earths " by separate wires, not smaller than No. 6 B. &S., which must not be connected to any pipe within the building, and must be run as nearly as possible...
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