The National Electrical Code: An Analysis and Explanation of the Underwriters' Electrical Code, Intelligible to Non-expertsC. A. Hewitt, 1896 - 222 стор. |
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Сторінка v
... LIGHT AND POWER . PART III . Testing - Series Circuits - Multiple - arc Circuits -Al- ternating Circuits - Motors 36 to 46 CHAPTER V. CLASS B , HIGH POTENTIAL SYSTEMS PART I Class of High Potential Circuits - Outside Conductors Wire ...
... LIGHT AND POWER . PART III . Testing - Series Circuits - Multiple - arc Circuits -Al- ternating Circuits - Motors 36 to 46 CHAPTER V. CLASS B , HIGH POTENTIAL SYSTEMS PART I Class of High Potential Circuits - Outside Conductors Wire ...
Сторінка 13
... light , heat , or work , in moving a machine . There is but one kind of electricity , as far as we know , but it ... arc lamp , such as is commonly used in street illumination , requires a cur- rent of 10 amperes . If the lamp burns for ...
... light , heat , or work , in moving a machine . There is but one kind of electricity , as far as we know , but it ... arc lamp , such as is commonly used in street illumination , requires a cur- rent of 10 amperes . If the lamp burns for ...
Сторінка 21
... arc . " It is a flame , and its heat is so intense that it will melt steel like wax in the flame of a candle . It is this arc that gives the light in an " arc " lamp , and this is the thing we may get in a system of conductors when ...
... arc . " It is a flame , and its heat is so intense that it will melt steel like wax in the flame of a candle . It is this arc that gives the light in an " arc " lamp , and this is the thing we may get in a system of conductors when ...
Сторінка 23
... light- ing plant , as an extra precaution . The wires upon the dynamo are insulated from the iron frame of the ... arc may be formed by the breaking of a wire , or by the intentional REESE LIBRARY OF THE UNIVERSITY opening of a circuit ...
... light- ing plant , as an extra precaution . The wires upon the dynamo are insulated from the iron frame of the ... arc may be formed by the breaking of a wire , or by the intentional REESE LIBRARY OF THE UNIVERSITY opening of a circuit ...
Сторінка 28
... LIGHT AND POWER . PART II . 4. SWITCH TEXT OF CODE COVERED BY THIS CHAPTER . BOARDS : Should be approved before ... arc after the discharge has passed . Switch Boards . - Rule " a " covers in a general way the question of location , and ...
... LIGHT AND POWER . PART II . 4. SWITCH TEXT OF CODE COVERED BY THIS CHAPTER . BOARDS : Should be approved before ... arc after the discharge has passed . Switch Boards . - Rule " a " covers in a general way the question of location , and ...
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The National Electrical Code: An Analysis and Explanation of the ... Richard Henry Pierce Повний перегляд - 1896 |
The National Electrical Code. an Analysis and Explanation of the ... Richard H. Pierce,R. E. Richardson Попередній перегляд недоступний - 2015 |
The National Electrical Code: An Analysis and Explanation of the ... Richard Henry Pierce Попередній перегляд недоступний - 2022 |
Загальні терміни та фрази
allowed alternating current amperes approved insulating arc lamp arc light attached building called carbons ceiling Central Station CHAPTER circular mils CLASS CODE COVERED coil combination fixture combustible material concealed conductors connected construction cord cuit damp direct current double pole ductors dynamo earth elec electric light energy exposed floor flow fuse fusible cut-out gas pipe glass or porcelain globe ground hazard heat incandescent lamps inch in thickness inflammable material inside installed insu insulating covering insulating joint insulating material insulating supports insulating tubes insulation resistance liable light and power light or power lightning arrester LOW POTENTIAL SYSTEMS mechanical injury megohm metal moisture moulding multiple arc number of lamps ohms operate opposite polarity ordinary path placed plates practice prevent primary battery protected rheostat rubber Rule secure shunt socket soldered spark arrester splices switch board tion transformer tricity trolley wire underwriters volts Vulca walls