GB/T 3836.18-2024: Explosive atmospheres - Part 18: Intrinsically safe electrical systems

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Scope

This document specifies special requirements for the design, structure, and assessment
of intrinsically safe systems (explosion-proof type "i").
This document applies to intrinsically safe systems that are intended to be used in whole
or in part in places where Class I, Class II or Class III Ex equipment is required.
Note 1: This document is used for the design and assessment of intrinsically safe systems; its
personnel may be the manufacturer, third-party organization, expert consultant or end-user staff.
This document supplements and modifies the general requirements of GB/T 3836.1 and
the intrinsic safety type of GB/T 3836.4. When the requirements of this document
conflict with the requirements of GB/T 3836.1 or GB/T 3836.4, the requirements of this
document take precedence.
The installation requirements of Class II or Class III intrinsically safe systems, which
are designed in accordance with this document, are specified in GB/T 3836.15.
Note 2: GB/T 3836.15 currently does not specify the installation requirements for Class I; the
installation requirements for Class I are under consideration.

Basic Data

Standard ID	GB/T 3836.18-2024 (GB/T3836.18-2024)
Description (Translated English)	Explosive atmospheres - Part 18: Intrinsically safe electrical systems
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K35
Classification of International Standard	29.260.20
Word Count Estimation	54,546
Date of Issue	2024-03-15
Date of Implementation	2024-10-01
Older Standard (superseded by this standard)	GB/T 3836.18-2017
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration