IEC 62877-2:2016 PDF

Name: IEC 62877-2:2016 — Electrolyte and water for vented lead acid accumulators - Part 2: Requirements for water
SKU: IEC 62877-2:2016
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Electrolyte and water for vented lead acid accumulators - Part 2: Requirements for water

Название (английский):

IEC 62877-2:2016

Electrolyte and water for vented lead acid accumulators - Part 2: Requirements for water

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 27 января 2016 г.
Издание:: IEC IS 62877 edition 1 version 1
ICS:: 29.220.20

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Описание (английский):

IEC 62877-2:2016 applies to water for use with vented lead-acid cells and batteries, i.e. water for preparation of electrolyte and for topping up cells or batteries. The purity of refilling water has to meet higher requirements compared to filling electrolyte, because the impurities in the operating electrolyte will be gradually increased by regular addition of water. This international standard lays down requirements of the composition, purity and properties of water in the absence of specific recommendations from the manufacturer.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

IEC 62877-2:2016 is an international standard published by the International Electrotechnical Commission (IEC) that specifies the requirements for water used in vented lead acid accumulators. This part of the IEC 62877 series focuses exclusively on the composition, purity, and physical and chemical properties of water used for preparing electrolyte and topping up vented lead-acid batteries. The standard addresses the critical need for high-purity water to avoid deterioration of battery performance caused by accumulating impurities over time. In cases where battery manufacturers do not provide specific guidelines, IEC 62877-2 sets benchmark criteria ensuring consistent water quality to optimize battery longevity and safety.

Key Topics

Scope and Application

Applies to purified water for vented lead-acid cells used both in electrolyte preparation and during maintenance (topping-up).
Emphasizes higher purity standards for refill water compared to initial electrolyte, as impurities accumulate with regular water addition.

Physical Requirements of Water

Appearance: Clear, colorless, odorless, free from oil contamination.
pH: Between 5 and 7, suitable for battery electrochemistry.
Electrical conductivity: Maximum 10 µS/cm when freshly prepared, rising to no more than 30 µS/cm before filling.

Chemical Properties and Impurity Limits

Maximum evaporation residue: 10 mg/l.
Oxidizable organic substances not exceeding 20 mg/l (calculated as KMnO4).
Strict limits on metallic impurities such as lead, antimony, arsenic, copper, and others at 0.1 mg/l individually, and total heavy metals capped at 0.5 mg/l.
Halogens, nitrates, and ammonia content are tightly controlled to prevent battery damage.

Storage Recommendations

Water must be stored in airtight vessels made from glass, ebonite, polyethylene, polypropylene, or certain plastics.
Metal containers are prohibited to avoid contamination from dissolved metal ions.
Polyvinyl chloride (PVC), rubber, or polyethylene hoses are recommended.
Airtight storage minimizes CO2 absorption, which can increase water conductivity, impairing battery function.

Applications

Lead Acid Battery Maintenance Use of IEC 62877-2 compliant purified water ensures the reliable topping up of vented lead-acid batteries commonly employed in automotive, industrial, and stationary power backup applications.

Electrolyte Preparation The standard guides the preparation of sulfuric acid electrolyte by mixing purified water with concentrated acid, maintaining the electrolyte’s chemical composition within designed operational parameters.

Quality Control in Battery Manufacturing Manufacturers and maintenance providers reference IEC 62877-2 to establish water quality assurance protocols, preventing premature battery degradation caused by impurity accumulation over the battery lifecycle.

Industrial and Renewable Energy Systems Vented lead-acid batteries used in renewable energy storage and industrial settings benefit from adherence to water quality standards to optimize performance and reduce downtime.

Related Standards

IEC 62877-1: Electrolyte and water for vented lead acid accumulators – Part 1: Requirements for electrolyte Complements Part 2 by specifying the requirements for sulfuric acid electrolyte used together with purified water.

IEC 62485-2: Safety requirements for secondary batteries and battery installations – Part 2: Stationary batteries Covers safety aspects relevant to stationary lead-acid battery installations using recompliant water and electrolyte.

IEC 62485-3: Safety requirements for secondary batteries and battery installations – Part 3: Traction batteries Applies to traction batteries, where electrolyte and water purity also directly influence battery safety and operational reliability.

Adherence to IEC 62877-2:2016 ensures that water used with vented lead-acid batteries meets internationally recognized purity standards critical to maintaining battery life, performance, and safety. This standard is indispensable for battery manufacturers, maintenance professionals, and users seeking to optimize vented lead-acid battery systems across various applications.

IEC 62877-2:2016 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

IEC 62877-1:2016/COR1:2017

Corrigendum 1 - Electrolyte and water for vented lead acid accumulators - Part 1: Requirements for electrolyte

IEC 62485-2:2010

Safety requirements for secondary batteries and battery installations - Part 2: Stationary batteries

IEC 62485-3:2014

Safety requirements for secondary batteries and battery installations - Part 3: Traction batteries