GOST R 55190-2012 PDF

Full title and description

GOST R 55190-2012 (Russian title: «Устройства комплектные распределительные в металлической оболочке (КРУ) на номинальное напряжение до 35 кВ. Общие технические условия»). English title commonly given: "Metal‑enclosed (factory‑assembled) switchgear for rated voltages up to and including 35 kV — General specifications".

Abstract

National Russian standard (adopted from IEC 62271-200:2003) that defines general technical requirements, constructional and testing provisions, marking, and safety requirements for factory‑assembled metal‑enclosed switchgear and controlgear (KRU) intended for AC systems with rated voltages up to and including 35 kV for indoor and outdoor installation. The standard covers ratings, type and routine tests, insulation and mechanical requirements, and provisions to protect personnel and equipment (including internal‑arc considerations).

General information

• Status: Replaced / superseded — superseded by ГОСТ Р 55190-2022 (new edition introduced 1 January 2023).
• Publication date: Approved 26 November 2012 (designation year 2012); introduced into force (effective date) 1 January 2014.
• Publisher: Federal Agency on Technical Regulation and Metrology (Rosstandart) / national standards body of the Russian Federation.
• ICS / categories: 29.130.10 (High‑voltage switchgear and controlgear).
• Edition / version: GOST R 55190-2012 — national adoption of IEC 62271-200:2003 (first national edition, 2012 designation).
• Number of pages: 98 pages (typical published text).

Scope

Applies to factory‑assembled metal‑enclosed switchgear and controlgear assemblies (KRU) for alternating current with rated voltages up to and including 35 kV, intended for indoor and outdoor installation and for service frequencies up to 50/60 Hz. The scope includes definitions of types of enclosures and compartments, rated values, requirements for electrical and mechanical design, insulation, clearances, protective measures for personnel (including internal‑arc considerations), and the set of type, routine and special tests.

Key topics and requirements

• Definitions and classification of metal‑enclosed switchgear (cell/compartment types, fixed/removable parts, filled/enclosed types).
• Rated values and electrical characteristics (nominal voltage, current, short‑time withstand, rated frequency, voltage levels up to 35 kV).
• Design and constructional requirements for enclosures, internal clearances, busbars, connections, and accessibility for operation and maintenance.
• Insulation requirements (solid, liquid, gas‑insulated options), dielectric tests and clearances.
• Requirements and procedures for type tests, routine tests and special tests (including mechanical and temperature‑rise tests).
• Internal‑arc protection and personnel safety measures (compartmentation, pressure relief, doors/locks and interlocks, LSC/level of protection guidance).
• Marking, documentation (including assembly, operation and maintenance instructions), and quality/inspection requirements.

Typical use and users

Used by electrical equipment manufacturers, substation designers, engineering contractors, utilities and industrial end‑users specifying and accepting metal‑enclosed switchgear (KRU) for distribution and substation installations up to 35 kV. Also used by test laboratories and certification bodies for type and routine testing, and by procurement and compliance teams to define technical requirements in tenders and contracts.

Related standards

International and national standards closely related to or referenced by this document include IEC 62271-200 (metal‑enclosed switchgear), IEC 62271-1 (common requirements for high‑voltage switchgear and controlgear), standards on internal‑arc testing and personnel protection (e.g., requirements harmonized in later national editions), and the newer national replacement ГОСТ Р 55190-2022. Historical standards such as ГОСТ 14693 (older KRU requirements) were affected by the introduction of the updated GOST R 55190 series.

Keywords

GOST R 55190-2012, KRU, metal‑enclosed switchgear, switchgear up to 35 kV, IEC 62271-200, internal arc, factory‑assembled switchgear, high‑voltage distribution, Rosstandart, testing, rated values.

FAQ

Q: What is this standard?

A: A Russian national standard (GOST R) that sets general technical specifications for factory‑assembled metal‑enclosed switchgear (KRU) for AC systems up to 35 kV, harmonized with IEC 62271-200.

Q: What does it cover?

A: Constructional and electrical requirements, rated values, insulation and dielectric provisions, mechanical design, type/routine tests, internal‑arc and personnel protection measures, marking and documentation for KRU intended for indoor and outdoor use.

Q: Who typically uses it?

A: Equipment manufacturers, utilities, substation and distribution system designers, test laboratories, certification bodies, and procurement/specification teams. (See "Typical use and users" above.)

Q: Is it current or superseded?

A: Superseded — ГОСТ Р 55190-2012 was replaced by ГОСТ Р 55190-2022; the updated national standard was introduced into force on 1 January 2023. For current compliance and the latest technical requirements, refer to the 2022 edition.

Q: Is it part of a series?

A: Yes — it is part of the family of standards covering high‑voltage switchgear and controlgear (the IEC 62271 series and corresponding national adoptions, plus related GOST documents addressing common requirements, testing and safety).

Q: What are the key keywords?

A: Metal‑enclosed switchgear, KRU, 35 kV, IEC 62271-200, internal arc, type tests, factory‑assembled, Rosstandart.