GB919889A - Improvements relating to electric lighting circuit arrangements - Google Patents

Improvements relating to electric lighting circuit arrangements

Info

Publication number
GB919889A
GB919889A GB932260A GB932260A GB919889A GB 919889 A GB919889 A GB 919889A GB 932260 A GB932260 A GB 932260A GB 932260 A GB932260 A GB 932260A GB 919889 A GB919889 A GB 919889A
Authority
GB
United Kingdom
Prior art keywords
resistance wire
cabling
lighting circuit
march
control gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB932260A
Inventor
Leslie James Gardner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB932260A priority Critical patent/GB919889A/en
Publication of GB919889A publication Critical patent/GB919889A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/06—Starting switches thermal only

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

919,889. Supply systems for discharge lamps. ASSOCIATED ELECTRIC INDUSTRIES Ltd. March 16, 1961 [March 16, 1960], No. 9322/60. Class 38 (4). A ballast resistor for use in ah electric lighting circuit arrangement comprising one or more discharge lamps and a control gear housing, is formed by a resistance wire insulated with a heat resisting material and which is embodied in cabling carrying the lamp supply current. Cabling 3 used to connect fluorescent tube heaters 2 to a control gear housing 4 containing the usual tube starting apparatus embodies a ballast resistor 7 formed from resistance wire wound on a heat-resisting core of insulating material such as asbestos or glass fibre and which is similarly sheathed. The right-hand section of cabling shown includes an insulated stranded copper conductor 8 together with the resistance wire in a common sheath. Starting of the fluorescent tube 1 may be facilitated by the use of metallic strip 9 forming an artificial earth and connected to the mains supply S within the housing through a high resistor 10 and a capacitor 11. Specification 919,890 is referred to.
GB932260A 1960-03-16 1960-03-16 Improvements relating to electric lighting circuit arrangements Expired GB919889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB932260A GB919889A (en) 1960-03-16 1960-03-16 Improvements relating to electric lighting circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB932260A GB919889A (en) 1960-03-16 1960-03-16 Improvements relating to electric lighting circuit arrangements

Publications (1)

Publication Number Publication Date
GB919889A true GB919889A (en) 1963-02-27

Family

ID=9869730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB932260A Expired GB919889A (en) 1960-03-16 1960-03-16 Improvements relating to electric lighting circuit arrangements

Country Status (1)

Country Link
GB (1) GB919889A (en)

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