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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Annex 3. Standards for testing electrical equipment and apparatus for electrical installations of consumers

Rechargeable batteries

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Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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K - are produced within the time limits established by the PPR system.

Name of the test	Type of test	Test norms	Directions
5.1. Checking the capacity of a molded battery	K, T	The capacity reduced to a temperature of 20 ° C must correspond to the factory data	If the battery capacity drops below 70% of the original, it must be replaced or restored
5.2. Checking the density of the electrolyte in each bank	K, T, M	Electrolyte density (g/cm³) of a fully charged battery in each cell at the end of the charge and in the continuous charge mode, reduced to a temperature of 20 ° C, should be with a deviation of ± 0,005 g/cm³:	The electrolyte temperature during charging should be no higher than 40 ° C for batteries of type C (SK), SP (SPK) and not higher than 45 ° C for batteries of type CH The density of the electrolyte at the end of the discharge for serviceable batteries must be at least 1,145 g/cm³ The check is made once a month
		for batteries type C (SC) - 1,205 g/cm³
		for batteries type SP (SPK) and CH - 1,24 g/cm³
5.3. Chemical analysis of the electrolyte	Т	See table. 9 (Annex 3.1)	Produced at least once every 1 years
5.4. Measuring the voltage of each battery cell	K, T, M	The battery should have no more than 5% lagging cells. The voltage of the lagging elements at the end of the discharge should differ by no more than 1 - 1,5% from the average value voltage of other elements The voltage of each battery cell operating in the trickle charge mode must be 2,2 ± 0,05 V	The voltage at the end of the discharge is set based on the manufacturer's instructions
5.5. Battery insulation resistance measurement	K, M	Not less than 15 kΩ at 24 V, 25 kΩ at 48 V, 30 kΩ at 60 V, 50 kΩ at 110 V, 100 kΩ at 220 V	Produced with a megaohmmeter for a voltage of 1000 V before pouring the electrolyte. During operation, the measurement is carried out by a standard insulation monitoring device
5.6. Measuring the height of sediment (sludge) in a can	М	There must be a free space of at least 10 mm between the sediment and the lower edge of the positive plates.
5.7. Checking the voltage at inrush currents	K, M	The voltage values at the battery terminals (with the charging unit turned off) when the battery is discharged for no more than 5 s at the highest current, but not more than 2,5 current of the one-hour discharge mode, without the participation of end elements, must be compared with the results of previous measurements and cannot decrease more than than 0,4V per cell from the voltage prior to the shock	It is recommended to test once a year

See other articles Section Rules for the technical operation of consumer electrical installations (PTE).

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