BS 6290-4:1997:2002 Edition
$167.15
Lead-acid stationary cells and batteries – Specification for classifying valve regulated types
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 34 |
Specifies qualification criteria and classification; the latter relating to electrical performance, durability and safety to estimate battery life.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 5 | 1 Scope 2 References 2.1 Normative references 2.2 Informative references 3 Definitions 3.1 unit 3.2 monobloc 3.3 valve regulated cell 3.4 thermal runaway 4 Measuring instruments 4.1 Electrical measuring instruments |
| 6 | 4.2 Temperature measurement 4.3 Time measurement 4.4 Gas pressure measurement 4.5 Gas volume measurement 5 Capacity 5.1 Cell or unit capacity 5.2 Verification of battery capacity |
| 7 | 6 Safety features 6.1 Terminal pillars 6.2 Containers and lids Table 1 Performance class 6.3 Gas emission |
| 8 | 6.4 High current endurance 7 Performance 7.1 Capacity conformity level 7.2 Cyclic endurance 7.3 Charge retention 7.4 Internal resistance |
| 9 | 8 Durability 8.1 Life at elevated temperatures 8.2 Float voltage characteristics 8.3 Pillar seal assembly 8.4 Mechanical strength |
| 10 | 9 Classification 9.1 Type testing 9.2 Classification procedure |
| 11 | Table 2 Schedule of classification tests |
| 12 | 10 Marking 10.1 Polarity 10.2 Information marks 10.3 Product label Figure 1 Product label |
| 13 | Table 3 Type test certificate |
| 14 | Table 4 Classification table |
| 15 | Annex A (informative) Applications and contractual recommendations A.1 Product lives at various temperatures A.1.1 Ambient temperatures A.1.2 Temperatures of between 20 °C and 40 °C Table A.1 Temperature and service life |
| 16 | A.2 Operational recommendations A.2.1 Rated capacity A.2.2 Conservation of charge A.2.3 Environmental conditions A.2.4 Thermal management A.3 General application A.4 Acceptance tests |
| 17 | A.5 Contractual information Annex B (normative) Capacity test B.1 Capacity test (laboratory) B.1.1 Charge units for testing in accordance with the manufacturer’s instructions. All tests shall be c… B.1.2 In order to take temperature readings of a battery, choose one pilot unit per group of six units … B.1.3 Measure the surface temperature at the centre of the container wall, parallel to the plates, imme… B.1.4 Within 1 h to 24 h after the end of charging, subject the units to a discharge current B.1.5 The voltage between the terminals of the units, including one inter-unit connector, shall be eith… |
| 18 | B.1.6 Discontinue the discharge when the voltage has reached the value B.1.7 The uncorrected capacity, B.1.8 When the initial average temperature / is different from the reference temperature (20 °C), the u… B.2 Battery capacity test (on site) B.2.1 Prepare the battery for service by charging in accordance with the manufacturer’s instructions. B.2.2 Commence the discharge test to determine the capacity between 1 h and 24 h after the end of the c… B.2.3 Perform the discharge at a unit temperature,�/, measured as the mean of every sixth unit (for bat… B.2.4 In order to determine the actual capacity at the 3 h rate, discharge the battery at a constant cu… B.2.5 During the discharge, check the following values: B.2.6 The duration of the discharge is the period of time, B.2.7 The capacity, |
| 19 | B.2.8 If the average temperature, / (in °C), differs from the reference temperature, B.3 Additional capacity tests Table B.1 Final voltages at discharge durations of between 1 h and 10 h Table B.2 Final voltage at discharge durations of less than 1 h |
| 20 | Annex C (normative) Methods of test (safety features) C.1 Flammability test C.1.1 The samples of containers, lids and covers shall be tested in accordance with Method F; (Flame- V… C.1.2 For the purposes of this standard the test specimens shall be manufactured by the moulding method… C.1.3 For the purposes of this standard the test shall be completed on the issue of the test report pre… C.2 Gas emission test C.2.1 This test determines the gas emission from new valve regulated stationary lead-acid units when op… C.2.2 The test shall be carried out on a number of new units, equivalent to 12 cells, which have underg… C.2.3 The units shall be maintained at an ambient temperature between 20 °C and 25 °C. Each unit valve … C.2.4 Float charge the units as a series string at a voltage equivalent to 2.4 volts per cell for 72 h. C.2.5 On completion of 72 h of float charge, commence gas collection and continue collecting gas for a … C.2.6 Calculate the normalized volume of gas, |
| 21 | Figure C.1 Gas collection and measurement C.3 High current endurance test C.3.1 The three units used in this test shall be capable of giving their rated capacity, C.3.2 Discharge each unit for 1 min at a constant current equal to 3.5 times the 5 min current specifie… |
| 22 | Annex D (normative) Methods of test (performance) D.1 Capacity conformity level test D.1.1 Introduction D.1.2 Test procedure D.1.3 Calculation of the standardized durations |
| 23 | Table D.1 Programme of discharge tests |
| 24 | Table D.2 Standard final end voltage D.1.4 Correction factors |
| 25 | Table D.3 Summary of standardized, corrected duration data D.1.5 Calculation of maximum, minimum and mean values for capacity |
| 26 | Table D.4 Standard deviation maximum and minimum factors D.1.6 Determination of characterized values capacity D.1.7 Determination of characterized values of capacity standard deviation s D.1.8 Calculation of conformity |
| 27 | D.2 Cyclic endurance test D.2.1 After 50 cycles, remove the units from the cycling device, and recharge them at 2.4 V per cell fo… D.2.2When the performance is stated as the number of cycles to a residual capacity, Table D.5 Percentage conformity values D.3 Charge retention test D.3.1 Prepare, in accordance with D.3.2 After 90 days of storage without a connected circuit, subject the units to a capacity test in acc… D.3.3 The charge retained, |
| 28 | D.4 Internal resistance test D.4.1 The values of internal resistance obtained in this test refer to a single unit. However, the resi… D.4.2 Perform the test on six units which, after being submitted to the capacity test in accordance with D.4.3 After preparation in accordance with Figure D.1 Discharge characteristic |
| 29 | Figure D.2 Typical test circuit Annex E (normative) Methods of test (durability) E.1 Elevated temperature tests E.1.1 Selection of test pieces E.1.2 Preparation of the test pieces E.1.3 Test |
| 30 | E.2 Float voltage test E.2.1 Perform the test on a string of at least six units, which have been prepared for testing in accor… E.2.2 Subject the units to a permanent floating charge at a voltage E.3 Pillar seal assembly test E.3.1 Adhesive seals E.3.2 Compression seals |
| 31 | Figure E.1 Temperature-time cycle E.4 Mechanical stresses E.4.1 General E.4.2 Mechanical tests Annex F (informative) Electromagnetic compatibility |
