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Lagrangian point
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ADD
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Trypanosomiasis
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Recrystallisation
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Ecosystem
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Stamping mill
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Groin
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Contraceptive patch
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PlayStation 3
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Translation
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Endosymbiosis
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Absolute density
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Genu varum
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Homoptera
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Galileo
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Weightlessness
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Embedding diagram
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Catchall
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Interstellar dust
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SOFIA
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Active centre
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FTP
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Europa
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PFS
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Analemma
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Reunion Island ornate day gecko
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Lithosphere
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Ionisation
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Arteritis
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Zodiacal light
Dry contact
A dry contact is a type of switch that opens or closes controlled by the electricity distributor depending on the time period: peak or off-peak, for example.
On electronic meters it is identified by four terminals that operate in pairs. Marked C1/C2 and C3/C4, they are not sealed and can therefore be connected to a day/night switch.
This diagram of an electricity meter shows the dry contact at C1/C2 and C3/C4. © DR
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