Safety requirements for electrical equipment for measurement, control and laboratory use - Particular requirements for electrically operated valve actuators

Safety requirements for electrical equipment for measurement, control and laboratory use - Particular requirements for electrically operated valve actuators

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1   Scope and object

This clause of Part 1 is applicable, except as follows.

1.1   Scope

1.1.1   Equipment included in scope

Replacement:
Replace the text by the following paragraphs:
This part of IEC 61010 specifies the safety requirements for electric <sc> ACTUATOR</sc>s and <sc> SOLENOID</sc> s, as applied to valves, intended to be installed in an industrial process or discrete control environment.
This part of IEC 61010 specifies:
  • — particular safety requirements for general purpose electrically operated valve <sc> ACTUATOR</sc> s and <sc> SOLENOID</sc> s,
  • — related verification tests.
The general purpose electrically operated valve <sc> ACTUATOR</sc> s and <sc> SOLENOID</sc> s, covered by this part of IEC 61010 are limited to:
  • — those rated 600 V alternative current/ 840 V direct current or less,
Service personnel interface to equipment included in the scope of this document.

1.1.2   Equipment excluded from scope

Addition at the end of the list:
This standard excludes
  • — electric <sc> ACTUATOR</sc> s and <sc> SOLENOID</sc> s for use in explosive atmospheres, as covered by the IEC 60079 series of standards;
  • — mechanical parts/aspects of valves;
  • — <sc> ACTUATOR</sc> s and <sc> SOLENOID</sc> s performing a safety function as covered by the IEC 61508 series of standards;
  • — POSITIONERs.

NOTE A positioner is defined as a "physical unit delivering an additional, often mechanical, feedback to a mechanical final controlling element that improves its velocity and precision" in IEC 60050‑351:2013, 351-56-17.