DE692641C - Electrical measuring line for silo equipment - Google Patents

Electrical measuring line for silo equipment

Info

Publication number
DE692641C
DE692641C DE1939F0086372 DEF0086372D DE692641C DE 692641 C DE692641 C DE 692641C DE 1939F0086372 DE1939F0086372 DE 1939F0086372 DE F0086372 D DEF0086372 D DE F0086372D DE 692641 C DE692641 C DE 692641C
Authority
DE
Germany
Prior art keywords
strands
thermometer
measuring line
flat
electrical measuring
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
DE1939F0086372
Other languages
German (de)
Inventor
Reinhold Baum
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Priority to DE1939F0086372 priority Critical patent/DE692641C/en
Application granted granted Critical
Publication of DE692641C publication Critical patent/DE692641C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/32Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks

Landscapes

  • Ropes Or Cables (AREA)

Description

Elektrische Meßleitung für Siloeinrichtungen Um bei der Lagerung von Getreide und anderm Gut in Silos die Brandgefahr bei höherer Schichtung zu vermeiden, ist es zweckmäßig, die Temperatur der untersten # Schichten zu überwachen. Es kann dies in der Weise geschehen, daß eine elektrische Meßleitung, die in einer temperaturempfindlichen Widerstandswicklung :endet, in den Silo hereingelassen und mittels der herausgeführten Leitungen außerhalb des Silos durch geeignete Instrumente aus der Widerstandserhöhung die im Silo herrschende Temperatur ermittelt wird. Eine gewöhnliche Zuleitung würde jedoch nicht die genügende Festigkeit haben, weil bisweilen beim Entleeren des Silos durch die Reibungskräfte an der herabhängenden Leitung sehr hohe Zerreißkräfte angreifen. Die Neuerung betrifft ein solches sog. Therm.ömeterseil, bei dem diese Nachteile vermieden werden und bei dem andererseits auch die für die Isolation schädliche Beanspruchung der elektrischen Leiter auf Verdrehen verhütet wird.Electrical measuring line for silo equipment Grain and other goods in silos to avoid the risk of fire in higher layers, it is advisable to monitor the temperature of the lowest # layers. It can this is done in such a way that an electrical measuring line, which is in a temperature-sensitive Resistance winding: ends, let in the silo and by means of the led out Lines outside the silo by means of suitable instruments from the increase in resistance the temperature in the silo is determined. An ordinary lead would However, they do not have sufficient strength, because sometimes when emptying the silo very high tearing forces attack due to the frictional forces on the hanging line. The innovation concerns such a so-called thermometer rope, which has these disadvantages can be avoided and on the other hand also those harmful to the insulation Stress on the electrical conductor is prevented from twisting.

Wie die Abbildung zeigt, besteht das Thermameterseil, das beispielsweise einen Durchmesser vorn 12 bis 15 mm haben kann, aus isolierten Leitern ,a, beispielsweise zwei Gwmmia@dern b, die aus Litzen gebildet sind, die insgesamt oder deren einzelne Drähte mit einer schlecht wärmeleitenden Schicht, beispielsweise einer Glasbespinnung e, umgeben sind. Die Adern sind gemeinsam mit einem Gummimantel umpreßt, und die Gummiumhüllung d (von etwa 1 o mm) ist zweckmäßig mit mehreren Papierlagen e .oder mit Gewebe umwickelt.As the figure shows, there is the thermometer rope, for example may have a front diameter of 12 to 15 mm, made of insulated conductors, a, for example two Gwmmia @ dern b, which are formed from strands, the whole or their individual Wires with a poorly thermally conductive layer, for example a glass covering e, are surrounded. The veins are crimped together with a rubber jacket, and the Rubber cover d (of about 10 mm) is useful with several layers of paper e .or wrapped in fabric.

Die so hergerichtete Leitung ist dann zum Schutz und zwecks Aufnahme der Zugkräfte nach der Erfindung mit Flachlitzen f umseht, und zwar sind die Fachlitzen im Kreuzschlag um die Kabelleitung verseilt, d. h. die Litzen sind miteinander entgegengesetzt der Richtung der Drähte in den Litzen verseilt. Die Flachlitzen- enthalten zweckmäßig einen aus einem Flachdraht g bestehenden Kelmdräht.The line prepared in this way is then for protection and for the purpose of receiving looking around the tensile forces according to the invention with flat strands f, namely the shed strands twisted in ordinary lay around the cable line, d. H. the strands are opposite to each other the direction of the wires stranded in the strands. The flat braids contain expediently a Kelm wire consisting of a flat wire g.

In der Abbildung handelt es sich um sieben solcher flachen Litzen, die im Kreuzschlag rechtsgängig verseilt sind (um einen Flachdraht von etwa q. mm Breite) und aus zwölf verzinkten Runddrähten von etwa 0,7 mm Durchmesser; vorzugsweise aus Stahl.In the illustration there are seven such flat strands, which are twisted in a right-hand ordinary lay (around a flat wire about q. Mm wide) and made of twelve galvanized round wires about 0.7 mm in diameter; preferably made of steel.

Claims (1)

PATENTANSPRÜCHE: z. Elektrische Meßleitung für Siloeinrichtungen (Thermometerseil), dadurch gekennzeichnet, daß die elektrische Leitung mit Flachlitzen in Kreuzschlag umseilt ist. ä. Thermometerseil nach Anspruch i, dadurch gekennzeichnet; daß die Flachlitzen, die um die Leitung verseilt sind; aus einer großen Anzahl dünnex um einen Flachdraht verseilter Drähte bestehen. 3. Thermömeterseil nach Anspruch i und a, dadurch gekennzeichnet, daß die elektrische Leitung aus mindestens zwei Litzen aus elektrisch gut leitendem Werkstoff besteht; die (oder deren Einzeldrähte) mit einer dünnen Glasbespinnung umgeben sind, die einzeln mit Gummi. umhüllt sind und gemeinsam mit einem seinerseits mit mehreren Lagen dichtem, imprägniertem. Papier umwickelten Gummimantel umpreßt sind.PATENT CLAIMS: e.g. Electrical measuring line for silo equipment (thermometer cable), characterized in that the electrical line has flat strands in ordinary lay is roped around. Ä. Thermometer rope according to claim i, characterized in that; that the Flat strands that are stranded around the cable; from a large number to thinex consist of a flat wire of stranded wires. 3. Thermometer rope according to claim i and a, characterized in that the electrical line consists of at least two strands consists of a material with good electrical conductivity; the (or their individual wires) with are surrounded by a thin glass covering, which are individually covered with rubber. are wrapped and together with one in turn with several layers of dense, impregnated. paper wrapped rubber jacket are crimped.
DE1939F0086372 1939-02-14 1939-02-14 Electrical measuring line for silo equipment Expired DE692641C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939F0086372 DE692641C (en) 1939-02-14 1939-02-14 Electrical measuring line for silo equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939F0086372 DE692641C (en) 1939-02-14 1939-02-14 Electrical measuring line for silo equipment

Publications (1)

Publication Number Publication Date
DE692641C true DE692641C (en) 1940-06-24

Family

ID=7114679

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939F0086372 Expired DE692641C (en) 1939-02-14 1939-02-14 Electrical measuring line for silo equipment

Country Status (1)

Country Link
DE (1) DE692641C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793526A (en) * 1954-02-08 1957-05-28 Herbert F Dalglish Humidity measuring device
US2924974A (en) * 1954-02-09 1960-02-16 Herbert F Dalglish Test circuit cables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793526A (en) * 1954-02-08 1957-05-28 Herbert F Dalglish Humidity measuring device
US2924974A (en) * 1954-02-09 1960-02-16 Herbert F Dalglish Test circuit cables

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