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IEC TR 61857-2:2025 gives guidelines to identify the appropriate test method for the evaluation of a proposed electrical insulation system (EIS). Some of the standards evaluate the EIS using one stress factor which is thermal. Other standards evaluate the thermal stress factor with adjustments to the conditioning applied prior to the diagnostic testing to simulate applications in air. A third…

1 Scope This clause of Part 1 is replaced by the following. This part of IEC 60335 deals with the safety of electric oral hygiene appliances for household and similar purposes, their rated voltage being not more than 250 V, including direct current (DC) supplied appliances and battery-operated appliances. Examples of appliances that this standard is applicable to are – oral irrigators; –…

1 Scope 1.1 General This Standard applies to Class 1, 2, 3, 4, 5, and 7 powered lift trucks, including their design, operation, and maintenance. In addition, certain clauses apply to Class 6 vehicles, non-powered high-lift trucks, and personnel and burden carriers. Note: See Annex Bfor a list and description of classes. 1.2 Purpose The purpose of this Standard is to promote lift truck…

Scope 1.1 This Standard applies to air cleaning devices intended to potentially remove or reduce airborne particulate matter, volatile organic compounds (VOCs), or micro-organisms from the air in indoor residential and commercial occupancies with self-contained or duct-mounted applications. 1.2 This Standard applies to powered a) extra-low- and low-voltage electrostatic air cleaners; b)…

Scope 1.1 This Standard applies to single- or multiple-conductor, round, flat, or coiled appliance wiring material products classified as follows: a) Class I — internal wiring of equipment (single- or multiple-conductor constructions with or without an insulating covering, covering or jacket): i) Group A — not subject to mechanical abuse; and ii) Group B — potentially subject to…

Scope This document specifies requirements for metallic, non-metallic and composite cable ties and their associated fixing devices as a means used for managing or securing the wiring systems in electrical installations. Cable ties and associated fixing devices can also be suitable for other applications, such as support of wiring systems, and where so used, additional requirements can apply…

1 Scope 1.1 Objective 1.1.1 Protection standards for welding, cutting, and allied processes This Standard provides minimum requirements and recommendations to protect persons who work in an environment affected by welding, cutting, and allied processes from illness and injury and to prevent damage to property arising from the installation, operation, and maintenance of equipment used in these…

1 Scope 1.1 Requirements for operation and maintenance of HCFs This Standard describes the requirements, including quality system requirements, for the O&M of an HCF. It sets out specific requirements for a) facility architectural systems; b) exterior site elements related to the building and its functions; c) utilities; d) the facility’s infrastructure, including, but not limited…

1 Scope 1.1 Inclusions This Standard applies to newly produced combination gas controls, hereinafter referred to as controls, constructed entirely of new, unused parts and materials. 1.2 Additional inclusions The combination control may include other functions such as pilot gas filters, pressure switches, etc., of an approved type or be investigated as an integral part of the combination…

Scope 1.1 Standard application This Standard applies to ground source heat pumps and systems using groundwater, surface water, wastewater, or the ground as a thermal source or sink for heating and/or cooling, with or without a supplementary heating source. 1.2 New and retrofit installations This Standard applies to new and retrofit installations. 1.3 Minimum requirements This Standard…