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 likeInfo
- 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
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.
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) |
-
0
- NL NL64938D patent/NL64938C/xx active
-
1944
- 1944-01-07 GB GB334/44A patent/GB577359A/en not_active Expired
-
1945
- 1945-07-31 FR FR913015D patent/FR913015A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR913015A (en) | 1946-08-27 |
| NL64938C (en) |
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