电动工具、手提工具和园艺机械 - 安全 - 第 4-9 部分：用于树木维护作业的电池供电链锯的专用要求

[中文适用范围]： IEC 62841-4-9:2026 适用于用于树木服务的、最大质量为 5.0 kg 的可充电电池驱动的电动油锯。该质量包括最重的可拆卸电池组（如有，如 IEC 62841-1:2014 中 K.8.14.2 e) 2) 所述），但不包括导板、锯链和锯链润滑剂。本文件所涵盖的油锯旨在用于修剪和拆除站立树木的树冠。本文件所涵盖的油锯仅设计为用右手握后把手、左手握前把手操作。本文件不适用于以下情况： - 由市电或非隔离电源供电的油锯，且在连接电源时仍可使用； - 由内置电池供电的油锯； - 用于砍伐木材的油锯，如 IEC 62841-4-1 中所述； - 设计用于与导板和分料刀配合使用，或以其他方式（如使用支撑装置，或作为固定式或移动式机器）使用的油锯； - 杆式修剪剪； - 修剪锯。 注 1：杆式修剪剪由 IEC 62841-4-10 覆盖。 注 2：修剪锯将在 IEC 62841-4 的未来部分中予以覆盖。 机器和电池组的最大额定电压为 75 V 直流。本文件所涵盖的电池驱动油锯不被视为 I 类、II 类或 III 类工具，因此无需基本绝缘、补充绝缘或加强绝缘。电击危险仅存在于不同极性的部件之间。 本文件处理在机器的正常使用和合理可预见的误用中遇到的所有人员所面临的危险。在评估可充电电池组在充电期间防止电击的保护性能时，应使用本文件的有关要求，并将电池组安装到指定的充电器上进行评估。由于机器所用的可充电电池组可能经历不同的使用模式（如粗暴使用、高充电和放电电流），其安全性只能通过本文件进行评估，而不能通过其他标准（如 IEC 62133-1:2017 或 IEC 62133-2:2017）进行评估，除非本文件另有说明。本文件涵盖了与可充电电池安全性相关的所有相关方面，因此不需要单独应用 IEC 62133-1:2017 或 IEC 62133-2:2017 的要求。 在评估与机器用可充电电池组相关的火灾风险时，已考虑到这些电池组为无人值守的能量源，并在本文件中按此进行了评估。因此，其他标准中有关这些电池组充电引发火灾风险的要求已被视为满足。 本文件还涵盖了用于机器电池系统中的锂离子电池的要求。在这些要求的背景下，以下情况被考虑： - 这些要求涉及这些电池的火灾或爆炸风险，而不涉及任何与毒性或运输或处置相关的潜在危险。 注 3：IEC 62281:2019 涵盖锂离子电池在运输过程中的安全方面。 - 本要求所涵盖的电池系统并不打算由最终用户进行维护。 - 这些要求仅在用于本文件所涵盖产品时，才提供对电池的全面评估。 - 这些要求涉及锂离子电池系统在储存和使用（包括放电和充电）期间的安全性。这些要求仅被视为与电池充电器火灾和电击相关的补充要求。 - 这些要求参考并要求提供与电池单元相关的参数，以确定这些电池单元的安全使用条件。这些参数是本文件中若干测试的接受标准的基础。 本文件不单独评估电池单元的安全性。这些参数作为一个整体构成了电池单元的“指定运行区域”。可以有多个指定运行区域的集合。 本文件不适用于用户自行安装的一般用途电池的机器，本文件本身不足以确保对这些产品的所有危险进行考虑。 本文件不适用于电池充电器本身的安全性。 注 4：IEC 60335-2-29 覆盖多种充电器。 本文件应与 IEC 62841-1:2014 的第一版及 IEC 62841-1:2014/AMD1:2025 配合使用。本文件补充或修改了 IEC 62841-1:2014 中相应的条款，使其成为 IEC 标准：用于树木服务的电池驱动油锯的特殊要求。 本文件中新增的子条款、注释、表格和图表，从 101 开始编号。 附录 K 中新增的子条款、注释、表格和图表，从 301 开始编号。 注：请注意，国家委员会应意识到，新发布、修订或修改的 IEC 文件发布后，设备制造商和测试机构可能需要一个过渡期，以便根据新要求生产产品，并配备进行新或修订测试的能力。委员会建议，本出版物的内容在发布后至少 36 个月内不应早于该日期在国内实施。 [外文原描述]： IEC 62841-4-9:2026 applies to rechargeable battery-powered motor-operated chain saws for tree service, hereinafter referred to as chain saws or machines, having a maximum mass of 5,0 kg. The mass includes the heaviest detachable battery pack(s), if any, as described in IEC 62841-1:2014, K.8.14.2 e) 2), but excludes the guide bar, saw chain and saw chain lubricant. Chain saws covered by this document are intended to be used for pruning and dismantling standing tree crowns. The chain saws covered by this document are designed only to be operated with the right hand on the rear handle and the left hand on the front handle. This document does not apply to – chain saws supplied by mains power or power from non-isolated sources that permit the machine to be used while connected to such power supplies; or – chain saws supplied by integral batteries; or – chain saws for cutting wood as covered by IEC 62841-4-1; or – chain saws designed for use in conjunction with a guide-plate and riving knife or in any other way such as with a support or as a stationary or transportable machine; or – pole-mounted pruners; or NOTE 1 Pole-mounted pruners are covered by IEC 62841-4-10. – pruning saws. NOTE 2 Pruning saws will be covered by a future part of IEC 62841-4. The maximum rated voltage for machines and battery packs is 75 V d.c. Battery machines covered by this document are not considered to be class I tools, class II tools or class III tools and therefore are not required to have basic insulation, supplementary insulation or reinforced insulation. Electric shock hazard is considered to exist only between parts of opposite polarity. This document deals with the hazards presented by machines which are encountered by all persons in the normal use and reasonably foreseeable misuse of the machines. When evaluating a rechargeable battery pack for protection against electric shock during charging, creepage distances, clearances and distances through insulation, the relevant requirements of this document are applicable with the battery pack fitted to the intended charger. Since rechargeable battery packs for machines are submitted to different use patterns (such as rough use, high charging and discharging currents), their safety can be evaluated only by this document and not by using other standards for rechargeable battery packs, such as IEC 62133-1:2017 or IEC 62133-2:2017, unless otherwise indicated in this document. All relevant aspects related to the safety of rechargeable batteries are addressed in this document, such that the requirements of IEC 62133-1:2017 or IEC 62133-2:2017 are not required to be separately applied. When evaluating the risk of fire associated with rechargeable battery packs for machines, consideration has been given to the fact that these battery packs are unattended energy sources and have been evaluated as such in this document. Requirements in other standards regarding the risk of fire due to the charging of these battery packs are therefore considered to be fulfilled. This document also addresses requirements covering the use of lithium-ion cells employed in battery systems in machines. The following is considered within the context of these requirements: – These requirements address the risk of fire or explosion of these batteries and not any possible hazards associated with toxicity nor potential hazards associated with transportation or disposal. NOTE 3 IEC 62281:2019 covers the safety aspects of lithium-ion batteries during transport. – Battery systems covered by these requirements are not intended to be serviced by the end user. – These requirements are intended to provide comprehensive evaluation of a battery only if used in products covered by this document. – These requirements address the safety of lithium-ion battery systems during storage and use including discharge and charge. These requirements are only considered to be supplementary requirements in regard to battery charger fire and electric shock. – These requirements refer to and require parameters supplied in reference to the cells that establish conditions for safe use of those cells. Those parameters form the basis of acceptance criteria for a number of tests contained herein. This document does not independently evaluate the safety of cells. These parameters, taken as a set, constitute the "specified operating region" for a cell. There can be several sets of specified operating region(s). This document does not apply to machines using general purpose batteries installed by the user and this document alone will not be sufficient to ensure that all hazards are considered for these products. This document does not apply to the safety of battery chargers themselves. NOTE 4 IEC 60335-2-29 covers a variety of chargers. This document is to be used in conjunction with the first edition of IEC 62841‑1:2014 and IEC 62841-1:2014/AMD1:2025. This document supplements or modifies the corresponding clauses in IEC 62841-1:2014, so as to convert it into the IEC Standard: Particular requirements for battery-powered chain saws for tree service. Subclauses, notes, tables and figures which are additional to those in IEC 62841-1:2014 are numbered starting from 101. Subclauses, notes, tables and figures in Annex K which are additional to those in the main body of this document are numbered starting from 301. NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations can need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 36 months from the date of publication.