✨ Telegraph Service Procedures
2150
THE NEW ZEALAND GAZETTE.
[No. 80
68
office, the Officer in Charge will put the line to earth at the test-board, thus cutting his instrument out of circuit. At an intermediate office the Officer in Charge will cut out his office altogether by joining the wire through at the test-board. The central office should, if possible, be advised beforehand of the action about to be taken.
Office faults:
How to determine.
323. When an office is unable to gain the attention of other offices after calling a reasonable time, and finds, upon holding down the key, that the galvanometer shows the usual deflection—more especially if the galvanometer-needle vibrates, showing some one trying to work, but which immediately ceases upon the key being released—the fault will probably be caused by the back contact of key being dirty or oxidized. Should the galvanometer indicate a disconnection, the fault should be tested for by earthing the north side of the test-board and pressing the key. If this does not show the fault, the south side should be earthed; and, if neither operation restores current in the galvanometer, the fault will be a local one, and the office should be immediately cut out, prior to a thorough examination of the connections between the test-board and the instruments, and of the battery and battery-wires.
Lightning-guards to be frequently examined, also test-board and table connections.
324. Frequent examinations of lightning-guards and connections at the test-board and tables must be made. The duty must be attended to at least once weekly. When the galvanometer shows strong earth on the line-wire being disconnected at the test-board, the plates of the lightning-guard should be lifted apart, and the corrugations in each plate carefully examined and rubbed. If the key is then held down and the earth disappears the fault will have been in the lightning-guard; but if earth is still on when the guard-plates are separated, after cutting office out as previously directed, then the earth is on the table, or wires leading to test-board, which must be examined. Care must be taken that all connections are properly screwed up and kept clean.
Line faults.
325. All faults on the lines are to be reported by wire to the District Inspector, when the necessary instructions will be given to the lineman. Should it be impossible to report, owing to communication being totally cut off, if a lineman be attached to the office the Officer in Charge must give him the necessary instructions, and on the removal of the fault a full report must be made, stating the nature and locality of the fault, time of removal, and any other information bearing on the matter.
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NZ Gazette 1905, No 80
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Regulations for Telegraph and Telephone Services - Accounting and Discipline Procedures
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🚂 Transport & CommunicationsTelegraph, Telephone, Regulations, Procedures, Office faults, Line faults, Lightning-guards, Test-board, Galvanometer, Communication repair