GOST 13268-88 PDF

Full title and description

GOST 13268-88 — "Электронагреватели трубчатые" (English: "Tubular electric heaters"). The standard specifies designations, dimensions, technical requirements, tests and marking for two-ended tubular electric heaters (ТЭН) of circular cross-section intended for general-purpose industrial heating by radiation, convection or conduction.

Abstract

This standard defines requirements for the construction, nominal sizes, electrical and thermal characteristics, insulation, sealing and acceptance testing of two-ended tubular electric heaters (TЭН) of general-purpose climatic design UHL4. It excludes unsealed types, heaters for vacuum or high-pressure service, items with shell temperatures above specified limits, and special-use heaters for rail, marine or household appliance applications. The document also includes tables of nominal diameters, lengths, nominal voltages and recommended nominal powers.

General information

• Status: Active (Действует).
• Publication date: Introduced into force 01 January 1990 (document designation dated 1988 — entry/implementation date 1990).
• Publisher: State Standard of the USSR (Gosstandart) / adopted as an interstate standard (СТ СЭВ 171-87) and enacted as a USSR state standard.
• ICS / categories: OKC/OCS code 97.100.10; group Е75 (classification under domestic standards databases).
• Edition / version: Original issue designated 13268-88 (replaces GOST 13268-83); current text is the 1988/1990 edition in force.
• Number of pages: 15 pages (standard texts and tables).

Scope

The standard applies to two-ended tubular electric heaters of circular cross-section of general purpose and climatic design UHL4 (per GOST 15150-69) intended for integration into industrial installations to heat various media by radiation, convection or conduction. It does not apply to unsealed tubular heaters, heaters designed for operation in vacuum or at specified higher pressures, heaters with shell temperatures above specified limits (e.g., above 650 °C), heaters subjected to elevated mechanical loads (high vibration), or heaters intended for railway, marine or household appliance service.

Key topics and requirements

• Definitions and terminology for tubular heaters (TЭН), active length, active surface, insulating filler, sealing and contact components.
• Nominal voltages, ranges of unfolded lengths, standard diameters and recommended nominal powers (detailed tables of sizes and powers).
• Constructional requirements: hermetic shell, sealed ends, insulation resistance and leakage current limits, minimum creepage distances and contact design rules.
• Thermal and performance limits: permissible surface temperatures, temperature uniformity along active length, and allowable deviations of power consumption.
• Testing and acceptance criteria: insulation testing voltages, cold and hot leakage current limits, dimensional tolerances and factory acceptance tests.
• Marking, packaging and naming/designation conventions for documentation and product marking.

Typical use and users

Manufacturers of industrial tubular electric heaters, designers and procurement engineers for process-heating equipment, test laboratories performing type and acceptance tests, and quality/standards departments in manufacturing plants use this standard to ensure interchangeability, safety and performance compliance of TЭН devices intended for industrial heating applications. Repair and maintenance teams and technical authors preparing equipment specifications also reference it.

Related standards

Related and referenced documents include GOST 15150-69 (climatic designations and categories), various electrical safety and test standards cited in the normative references (for example GOST 12.2.007.0-75, GOST 6636-69, GOST 22261-82, GOST 23216-78, and GOST 27570.0-87). GOST 13268-88 superseded GOST 13268-83 and corresponds to ST СЭВ 171-87 in the CIS interchange context.

Keywords

Tubular electric heater; ТЭН; tubular heater; heater specification; insulation resistance; leakage current; hermetic shell; nominal diameter; active length; GOST; ГОСТ 13268-88.

FAQ

Q: What is this standard?

A: GOST 13268-88 is the Soviet / interstate standard that specifies requirements for two-ended tubular electric heaters (ТЭН) of circular cross-section used in industrial heating applications.

Q: What does it cover?

A: It covers terminology, nominal sizes and voltages, constructional and safety requirements (sealing, insulation, creepage distances), performance limits (surface temperature, power tolerances), and testing/acceptance procedures for general-purpose tubular heaters. It explicitly excludes certain special types such as unsealed heaters, vacuum or high‑pressure applications, and heaters for rail, marine or household use.

Q: Who typically uses it?

A: Heater manufacturers, equipment designers, test labs, quality and standards personnel, procurement and maintenance teams working with industrial heating equipment.

Q: Is it current or superseded?

A: The 13268-88 edition is listed as in force (Действует) and was introduced into force on 01 January 1990; it replaced the earlier GOST 13268-83. Users should verify national/regional updates or amendments in case of later revisions.

Q: Is it part of a series?

A: Yes — it continues the GOST series for tubular electric heaters (previous editions include GOST 13268-83 and older variants). The document also aligns with related national and interstate (СЭВ) normative texts referenced within.

Q: What are the key keywords?

A: Tubular heater, ТЭН, hermetic shell, insulation resistance, leakage current, active length, nominal diameter, GOST 13268-88.