Tag Archives: Battery Testing and Maintenance

Stationary Lead Acid Battery

Stationary Lead Acid Battery

Stationary Lead Acid Battery
Stationary Lead Acid Battery

Stationary Lead Acid Battery

IEC 60896-22 is applicable to  :-

  1. All stationary Lead-acid cells
  2. Monobloc batteries of the valve regulated type
  • For Float charge application: They can be permanently connected to a load and d.c. power supply.
  • In a static location: not generally moved from place to place.

They are incorporated into stationary equipment or installed in battery room.

These kinds of batteries can be used in

  • Telecom
  • UPS
  • Utility switch
  • Emergency power or similar applications

Objective of IEC 60896-22 :- It specify the methods of tests for all types and construction of valve regulated stationary Lead acid batteries and monobloc batteries.

Does not applicable :

  • lead-acid cells and monobloc batteries used for vehicle engine starting applications
  • solar photovoltaic energy systems
  • general purpose applications

There is a list of tests performed on the batteries for safe operation characteristics, durability Characterstics & performance Characteristics.

Safe operation characteristics

 

Test ClauseMeasurePurpose
6.1Gas emissionTo determine the emitted gas volume
6.2High Current ToleranceTo verify the adequacy of current conductioncross- sections
6.3Short circuit current & d.c internal resistanceTo provide data for the sizing of fuses in theexterior circuit
6.4Protection against internal ignition from external spark sourcesTo evaluate the adequacy of protective features
6.5Protection against ground short propensityTo evaluate the adequacy of design features
6.6Content and durability of required markingsTo evaluate the quality of the markings and thecontent of the information
6.7Material identificationTo ensure the presence of material identificationmarkings
6.8Valve operationTo ensure the correct opening of safety valves
6.9Flammability rating of materialsTo verify the fire hazard class of battery materials
6.10Intercell connector performanceTo verify the maximum surface temperatures ofthe connectors during high rate discharges

Performance characteristics

Test Clause Measurepurpose
6.11Discharge capacityTo verify the available capacities at selecteddischarge rates or discharge durations.
6.12Charge retention during storageTo provide storage duration data
6.13Float service with daily dischargesTo determine cyclic performance under float charge conditions
6.14Recharge behaviorTo determine the recovery of capacity orautonomy time after a power outage

Durability Characteristics

Test Clause Measurepurpose
6.15Service life at an operating temperature of40 °CTo determine the operational life at elevated temperatures
6.16Impact of a stress temperature of 55 °C or60 °CTo determine the influence of high stresstemperatures on cell or monobloc battery life
6.17Abusive over-dischargeTo determine the expected behaviour when excessive capacity is discharged
6.18Thermal runaway sensitivityTo determine the expected times to establish a condition of escalating current and temperature
6.19Low temperature sensitivityTo determine the sensitivity toward damage induced by electrolyte freezing
6.20Dimensional stability at elevated internalpressure and temperatureTo determine the propensity of the cell ormonobloc battery to be deformed by internal

pressure and at elevated temperature

6.21Stability against mechanical abuse of unitsduring installationTo determine the propensity of the cell ormonobloc battery to fracture or leak when

dropped.

Why ITC?

ITC is a photometric calibration lab which owns a number of reference detectors which are traceable to International standard systems of units. We have a team of trained technical experts. We offer calibration services at affordable costs.