GB577359A - Improvements in and relating to arrangements for preventing electrolysis corrosion of underground cables and the like - Google Patents

Improvements in and relating to arrangements for preventing electrolysis corrosion of underground cables and the like

Info

Publication number
GB577359A
GB577359A GB334/44A GB33444A GB577359A GB 577359 A GB577359 A GB 577359A GB 334/44 A GB334/44 A GB 334/44A GB 33444 A GB33444 A GB 33444A GB 577359 A GB577359 A GB 577359A
Authority
GB
United Kingdom
Prior art keywords
cables
arrangements
rectifier
jan
relating
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
GB334/44A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB577359A publication Critical patent/GB577359A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

577,359. Protective arrangements. STANDARD TELEPHONES & CABLES, Ltd. Jan. 7, 1944, No. 334. Convention date, Jan. 9, 1943. [Class 38 (iv)] In a system for preventing electrolytic corrosion of underground pipes or cables by stray earth currents, wherein the body to be protected is connected at a suitable point by a low resistance conductor to the supply circuit from which the earth current originates, a rectifier is included in series with the conductor to block reverse currents which might otherwise cause corrosion. As shown, the body 21 is connected to one side of supply circuit 19 by a low resistance path including fuse 18, winding 10 of a normally open solenoid-switch 11 and rectifier 15. The last is short-circuited and protected against overload by automatic closure of the switch contacts, upon the occurrence of an abnormally heavy earth current.
GB334/44A 1943-01-09 1944-01-07 Improvements in and relating to arrangements for preventing electrolysis corrosion of underground cables and the like Expired GB577359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US577359XA 1943-01-09 1943-01-09

Publications (1)

Publication Number Publication Date
GB577359A true GB577359A (en) 1946-05-15

Family

ID=22012437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB334/44A Expired GB577359A (en) 1943-01-09 1944-01-07 Improvements in and relating to arrangements for preventing electrolysis corrosion of underground cables and the like

Country Status (3)

Country Link
FR (1) FR913015A (en)
GB (1) GB577359A (en)
NL (1) NL64938C (en)

Also Published As

Publication number Publication date
NL64938C (en)
FR913015A (en) 1946-08-27

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