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BY2 Surge protective device
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| BY2-30/2.5 | BY2-60/2.5 | BY2-60/4.0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Usage and application scope BY2 series surge protective device (protector in short) is applied in A.C 50/60 Hz , ≤380V in the following electric power system , such as TT , IT ,TN-S , TN-C and TN-C-S, applied in the equipotential connection of the joint of LPZ0A and LPZ1 or LPZ0B and LPZ1, which protects the electric net shocked by the thunder or surge over voltage. This protector also can be connected with voltage limitation type SPD to combine "3+1", used in the TT system. And it's not applied in the system overdue short circuit current over rated breaking continuous value. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Main Structure and Operating Principle | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| The operating principal of the protector is refer to the sketch map, the electrodes are connected to the L /N line and PE line responsively, between the electrodes there will produce the electric interval. In normal situation, the protective device is high resistance, when the over voltage brings for electric network shocked by thunder or other reasons, the protective device will rapidly conduct and release the energy by arc light .As the impulse wave through it and after disappear, the protective device will recover to high resistance and not influence the normal operating. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Installation position and application | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1. SPD Class B, functioning as an equipotential connection in case of lightning. 2. Installed at the joint of the LPZOA or LPZOB and LPZ1 zones. 3. It is usually installed in low voltage main distribution cabinet connected to the incoming end of the buildings. 4. It adopts 35 mm DIN rail 5. The protector is linked by 10 -35 mm2 copper wire, the earth cable should choose the double color wire over 16 mm2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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