IEC 60896-2-1:2002 pdf download

IEC 60896-2-1:2002 pdf download.Stationary Lead-Acid BatteriesPart 2: Valve Regulated Types Section 1: Functional characteristics and methods of test.
Accuracy of measuring instruments
3.1.1 Voltage measurements
The instruments used shall be of an accuracy class equal to 0.5 or better. The resistance of the voltmeters shall be at least 1000 Ohm/V.
3.1.2 Current measurements
The instruments used shall be of an accuracy class equal to 0.5 or better.
3.1.3 Temperature measurement
The instruments used shall have a resolution of 1 °C. The absolute accuracy of the instruments shall be 1°C or better.
NOTE
As the electrolyte temperature cannot be measured directly in valve regulated cells and monoblocs, an alternative measuring point shall be chosen for giving a temperature reading as close as possible to that of the electrolyte. The preferred point of measurement shall be the negative terminal or the cell wall in contact of the plates.
3.1.4 Time measurements
The instruments used shall have of an accuracy of ±0.1 % or better.
3.1.5 Length measurements
The instruments used shall have an accuracy of ±1% or better.
3.1.6 Weight measurements
The instruments used shall have an accuracy of ±1% or better.
3.1.7 Gas volume measurements
The instruments used shall have an accuracy of ±5% or better.
3.1.8 Gas pressure measurements
The instruments used shall have an accuracy of ±1% or better.
The selection of the test units.
3.2.1 The units to be used for type testing according to this part of IEC 60896 shall be selected in accordance with the procedures as follows:
3.2.2 Step 1: The product ranges in a manufacturers product portfolio shall be defined by using the description of a product range as formulated above, If a product range is manufactured in multiple locations, the product from each location is deemed to be from a separate range.
3.2.3 Step 2: The representative cell or monobloc (model) of each product range shall be selected such that the representative model has combined features that are most critical for the outcome of the greatest number of tests. Generally, units with the highest unit voltage, highest capacity or largest size in a product range shall be selected for the test.
3.2.4 Step 3: These so defined representative models shall be declared, in appropriate technical documentation of the product range, as the sole representative of the entire product range.
3.2.5 Step 4: The test units (samples of the representative model) shall be selected from regular, ISO or equivalent quality-assured production and marked immediately as “60896-2 Test Unit” with indelible, handwritten and distinctive numbers of at least 30mm height on the unit cover
3.2.6 Step 5: The date of production (MM.YY) of the test units shall be reported in the relevant test documentation.
3.2.7 Step 6: The selected test units shall not be stored for more than three months after electrolyte filling and the eventual storage conditions shall be exclusively those specified in the appropriate technical documentation of the product range and reported in the relevant test documentation.
3.2.8 Step 7: The test units shall not be subjected to exceptional conditioning or commissioning treatments beyond or above that specified in the relevant technical documentation of the product range.
Such non-admissible conditioning treatments are, for example, repetitive charge/discharge cycling, high temperature storage and similar procedures.
3.3 General test features and rules
3.3.1 The test units shall not undergo any maintenance operations such as water or electrolyte additions or withdrawals during the entire duration of a test.
3.3.2 The test units shall be tested upright or in the position specified by the manufacturer in the relevant technical documentation of the product range except for those cases in which a particular position is specified in the test clause. The position used in any given test shall be reported in the relevant test documentation.
3.3.3 The test units shall always be tested fully charged with the method and duration of charge being exclusively that specified by the manufacturer in the relevant technical documentation of the product range except for those cases in which a particular method or duration is specified in the test clause. The charge methods and duration used in each test shall be reported in the relevant test documentation.
3.3.4 Whenever there is a significant change in a specified design feature, material, manufacturing process, relevant quality inspection and test procedures and manufacturing location(s) of a product range previously qualified per this part of IEC 60896, the relevant type test(s) shall be repeated to ensure that the affected product range continues to be in compliance with the Safety, Performance and Durability requirements for the intended application.
3.3.5 Each test and test set-up shall be documented with photographs that have a clear image of the test units and their identification numbers.
3.4 Customer test
3.4.1 The test units to be used for acceptance or commissioning tests shall be selected and defined in a joint agreement between the battery supplier and battery user.
3.5 Number of test units
3.5.1 The number of units to be tested is listed below.
Safety characteristics
Test Clause Measure Number of test units.