Overview
IEC 62841-3-6:2014 specifies the safety requirements and testing methods for transportable diamond drills that operate with a liquid system. These motor-operated, transportable tools are intended for drilling stone, concrete, and similar materials, using diamond core bits in conjunction with a liquid supply, which may be sourced from a pipe or container. With a rated voltage of not more than 250 V for single-phase (AC or DC) tools, and 480 V for three-phase AC versions, this standard ensures the safe operation of diamond drills up to 3,700 W input. IEC 62841-3-6:2014 addresses hazards that may occur during regular use and reasonably foreseeable misuse, making it essential for manufacturers, test laboratories, and regulatory bodies involved with electric diamond drilling equipment.
Key Topics
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Scope and Applicability
The standard covers transportable diamond drills equipped with a liquid system, including single-phase and three-phase models. It sets out voltage and input power limits and references battery-operated tools in Annex K.
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Safety Requirements
Specific requirements address electrical safety (shock prevention), moisture and water ingress risks, mechanical safety (moving parts and attachments), and noise and vibration emissions. The standard details necessary markings, operator instructions, and the use of residual current devices (RCDs).
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Liquid System Considerations
Tests and construction requirements ensure that liquid delivery, collection devices, and their connections do not expose users to electric shock or create hazardous spillage. Overhead and vacuum pad-based drilling scenarios are covered.
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Testing and Compliance
The document outlines testing conditions, warning requirements, and labeling, ensuring that tools conform to performance and safety expectations under various operating modes.
Applications
IEC 62841-3-6:2014 is applied in the design, manufacture, and certification of transportable diamond drills with an integrated liquid system. Key sectors that benefit from this standard include:
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Construction and Civil Engineering
For safe drilling in concrete, stone, and masonry, particularly where water cooling and dust suppression are critical.
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Industrial Equipment Manufacturing
Ensures product compliance, promoting the development of safe, reliable transportable diamond drill machines for global markets.
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Testing and Certification
Laboratories and regulatory bodies use the standard to evaluate tool safety, ensuring products meet international requirements before being placed on the market.
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Operator and Workplace Safety
By following precise marking and instruction guidelines, manufacturers help end users avoid electrical and mechanical hazards, especially during overhead or vacuum pad drilling.
Related Standards
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IEC 62841-1:2014
General safety requirements for electric motor-operated hand-held tools, transportable tools, and lawn and garden machinery. IEC 62841-3-6:2014 is intended to be read in conjunction with this base standard.
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IEC 61540:1997
Electrical accessories - Portable residual current devices without integral overcurrent protection (used for household and similar applications).
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IEC 61008-1:2010
Specifies residual current operated circuit-breakers without integral overcurrent protection for household and similar uses.
Keywords
Transportable diamond drills, liquid system, diamond core drilling, IEC 62841-3-6, safety requirements, electrical safety, industrial equipment standards, residual current devices, construction tools compliance, moisture resistance, mechanical hazards, operator instructions.
IEC 62841-3-6:2014 helps promote electrical and mechanical safety, reduce risks associated with liquid-cooled diamond core drilling, and supports international market access by aligning product design and testing procedures with globally recognized standards.