IEC 61116:2025 pdf download – Electromechanical equipment guidance for small hydroelectric installations. IEC 61116:2025 provides guidance applicable to hydroelectric installations equipped with impulse or reaction turbines having unit outputs up to approximately 15 MW and reference runner diameters around 3 m; these values are not absolute limits. This document addresses only the direct relationships between […]

IEC 60112:2025 pdf download – Method for the determination of the proof and the comparative tracking indices of solid insulating materials. IEC 60112:2025 specifies the test method for determining the proof tracking index (PTI) and comparative tracking index (CTI) of solid insulating materials, using specimens taken from equipment parts or from plaques of material under […]

IEC 63435:2025 pdf download – Nuclear facilities – Human machine interfaces – Operator support systems IEC 63435:2025 defines the characteristics of operator support systems (OSS) intended for use by control room personnel, maintenance engineers and emergency response teams. It establishes overarching principles for the OSS lifecycle and specifies OSS design requirements in accordance with a […]

IEC 63445:2025 pdf download – System referencing conductor switching device IEC 63445:2025 covers system-referencing conductor switching devices (SRCSDs) for household and similar applications within a Prosumer’s electrical installation (PEI). The SRCSD performs the functions specified in IEC 60364-8-82:2022 [2], clause 82.8.2.2.4. A PEI that can operate either while connected to a distribution network or while […]

IEC 61987-100:2025 pdf download,Industrial-process measurement and control – Data structures and elements in process equipment catalogues – Part 100: Data base standard for process measurement, control and automation equipment. IEC 61987-100:2025 outlines the semantics of data essential for process automation, the Industrial Internet of Things (IIoT), and smart manufacturing applications. This standard focuses on the […]

IEC 61554:2025 pdf download,Panel mounted equipment – Electrical measuring instruments – Dimensions for panel mounting. IEC 61554:2025 establishes a standardized system of dimensions specifically for the panel mounting of various types of equipment. This standard is relevant to electrical and electrically operated instruments used for indicating, recording, and controlling functions. The primary aim of this […]

IEC 63322:2025 pdf download,Security of ME equipment containing high-activity sealed radioactive sources. IEC 63322:2025 outlines the security requirements for medical equipment (ME EQUIPMENT) that utilizes high-activity sealed radioactive sources in various medical treatments and clinical procedures. This standard specifically applies to ME EQUIPMENT containing sealed radioactive sources classified as Category 1, 2, and 3 by […]

IEC 61109:2025 pdf download,Insulators for overhead lines – Composite suspension and tension insulators with AC voltage greater than 1 000 V and DC voltage greater than 1 500 V – Definitions, test methods and acceptance criteria. IEC 61109:2025 pertains to composite insulators designed for overhead power lines. These insulators feature a robust cylindrical insulating core […]