ISO 3046-6:2020 PDF

Name: ISO 3046-6:2020 — Reciprocating internal combustion engines — Performance — Part 6: Overspeed protection
SKU: ISO 3046-6:2020
Price: 25 EUR
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Reciprocating internal combustion engines — Performance — Part 6: Overspeed protection

Название (английский):

ISO 3046-6:2020

Reciprocating internal combustion engines — Performance — Part 6: Overspeed protection

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 26 февраля 2020 г.
Издание:: ISO IS 3046 edition 4 version 1
ICS:: 27.020

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Описание (английский):

This document specifies general requirements for overspeed limiting devices used for the protection of reciprocating internal combustion (RIC) engines and their driven machinery. It applies to reciprocating internal combustion engines for land, rail traction and marine use, excluding engines used in road vehicles and aircrafts.

Abstract

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Overview

ISO 3046-6:2020 addresses overspeed protection for reciprocating internal combustion (RIC) engines. The standard specifies general requirements for overspeed limiting devices used to protect engines and their driven machinery. It applies to land, rail traction and marine engines, and explicitly excludes engines for road vehicles and aircraft.

Why this matters: overspeed conditions can arise from sudden load loss, regulator lag or system malfunction. Effective overspeed protection prevents mechanical damage, enhances operational safety and supports regulatory compliance.

Key Topics

Scope and applicability: Covers overspeed limiting devices for RIC engines in land, rail and marine applications; excludes road vehicle and aircraft engines.

Terms and definitions: Establishes clear definitions for overspeed, setting speed, operating speed, speed limit, maximum permissible speed, declared speed, adjustment range and response time.

General requirements:

Devices must function at all engine power levels.
Mechanical safety must comply with ISO 12100 (safety of machinery, risk assessment and reduction).
Electronic control system safety must comply with IEC 60204-1 (electrical equipment of machines).
Manufacturer and customer agreement determines special requirements and use cases, taking classification or inspecting society rules into account.
Engine manufacturers are responsible for specifying setting speeds and verification methods and frequencies.

Overspeed protection features:

Device must not interfere with normal engine control but must act when overspeed occurs to control fuel, air intake, load or ignition, or to stop the engine.
Shutdown conditions should latch the device in the shutdown position; manual reset is normally required (automatic reset allowed only in special cases).

Applications

ISO 3046-6:2020 is practical for:

Engine OEMs designing overspeed limiting systems for land-based, rail traction and marine installations.

System integrators and shipyards implementing engine safety systems that must meet classification society rules.

Maintenance and inspection teams defining test methods and frequencies to verify overspeed device performance.

Practical benefits include reduced risk of catastrophic engine or driven-machinery failure, clearer manufacturer/customer responsibilities for setting and testing, and alignment with established machine safety and electrical-safety standards.

Related Standards

ISO 3046-4: Speed governing for reciprocating internal combustion engines (terms and references used in 3046-6).

ISO 12100: Safety of machinery - General principles for design, risk assessment and risk reduction (mechanical safety).

IEC 60204-1: Safety of machinery - Electrical equipment of machines - General requirements (electronic control system safety).

For specification of setting speeds, response time considerations, and interactions with classification societies or regulatory authorities, consult ISO 3046-6:2020 and coordinate requirements between manufacturer and customer.

ISO 3046-6:2020 PDF

Abstract

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Overview

Key Topics

Applications

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