1756-DMA31

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[] Programmable Controller++++++++++ Distributed control system[]
Main performance requirements
When the ambient temperature is -℃～+℃, the battery performance indicators should meet the normal use requirements.
The battery's floating charging operating life should be no less than 1 year when the ambient temperature is ℃ ~ ℃.
According to the specified test method, the battery pack's rate capacity should not be less than .
The supplier shall provide battery terminal blocks and anti-vibration mounting brackets.
The wiring board and terminal connectors between batteries should be made of materials with excellent conductivity and have anti-corrosion measures. Materials such as battery tanks, covers, safety valves, pole sealants, etc. should be flame retardant.
The battery must adopt a fully sealed and leak-proof structure. The casing must have no abnormal deformation, cracks or stains, the upper cover and terminals must have no damage, and no acid mist should escape during normal operation.
The battery polarity is correct, and the positive and negative polarities and terminals should be clearly marked. The plate thickness should be compatible with the service life.
The difference in open circuit voltage between any two batteries in the same group of batteries should not exceed 3 for a single battery.
During the use of the battery, the safety valve should be able to open and close automatically. The closing pressure of the valve should be within the range of ~, and the opening pressure of the valve should be within the range of ~.
The voltage drop of the connecting strip between the two batteries shall not exceed 3 hours.
The interconnection wires between battery packs should be insulated, and the terminal batteries should be provided with external copper core cables to the wiring board of the DC cabinet.
The battery is discharged at a current of 3, the poles should not be fused, and their appearance should not be abnormal.
After the battery is sealed, its charge retention capacity shall not be lower than that of the battery.
The sealing reaction efficiency of the battery is not lower than.
The battery needs to have strong overcharge resistance. After continuous charging at .3 current, there should be no obvious deformation or leakage in appearance. The battery self-discharge rate should not be greater than 100% per month.
The sealing agent should be free of cracks and overflow when the battery is at ℃ and ℃.
The battery internal resistance value provided by the manufacturer should be consistent with the actual tested battery internal resistance value.

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