 | National Electric Light Association. Convention - 1892 - 458 стор.
...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.... | |
 | Earle Abbott Merrill - 1892 - 188 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... | |
 | Charles M. Davis - 1893 - 162 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... | |
 | 1894 - 622 стор.
...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... | |
 | Arthur Vaughan Abbott - 1895 - 646 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... | |
 | Nehemiah Hawkins - 1896 - 570 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,... | |
 | Earle Abbott Merrill - 1896 - 232 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... | |
 | Earle Abbott Merrilol - 1896 - 232 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... | |
 | Richard Henry Pierce - 1896 - 234 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... | |
 | Nehemiah Hawkins - 1896 - 568 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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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. 
