GB/T 25285.1-2021: Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 25285.1-2021 (Self-service in 1-minute)
Newer / historical versions: GB/T 25285.1-2021

Preview True-PDF

Scope

This document specifies methods for identifying and assessing hazardous situations that
may lead to explosions, as well as design and structural measures that are consistent
with safety requirements, through the following aspects.
- Risk assessment;
- Risk reduction.
Safety of equipment, protective systems, components can be achieved, by eliminating
hazards and/or limiting risks, i.e., by.
a) Proper design (no safety protection devices);
b) Safety protection devices;
c) Usage information;
d) Any other precautionary measures.
Explosion protection measures corresponding to a) (prevention) and b) (protection) are
covered in Chapter 6.Explosion protection measures corresponding to c) are covered
in Chapter 7.The explosion protection measures corresponding to d) are not covered in
this document. They are covered in GB/T 15706 (Chapter 6 in GB/T 15706-2012).
The preventive and protective measures, which are specified in this document, can only
provide the required level of protection, when the equipment, protective systems and
components are operated within the scope of their intended use and are installed and
maintained in accordance with the corresponding operating procedures or requirements.
This document specifies general design and manufacturing methods, to help designers
and manufacturers achieve explosion-proof safety, when designing equipment,
protective systems, components.
This document applies to any equipment, protective systems, components, which are
intended to be used in explosive atmospheres under atmospheric conditions. These
environments may be caused by flammable substances that are handled, used or
released by equipment, protective systems, components, OR by flammable substances
around equipment, protective systems and components and/or by the constituted
materials from which equipment, protective systems, components.
This document applies to equipment, protective systems, components at all stages of
use.
This document applies to category II and category III equipment, which is used in other
places except coal mine equipment. For equipment requirements in underground areas
of coal mines and coal mine surface facilities, that are dangerous due to gas and/or
combustible coal powder, see GB/T 25285.2.
This document does not apply to.
- Medical equipment for medical environments;
- Equipment, protective systems, components used in explosion hazard locations, as
caused entirely by the presence of explosive substances or unstable chemicals;
- Equipment, protective systems, components in places where explosions are caused
by the reaction of substances with oxidants other than oxygen in the atmosphere,
OR where explosions are caused by other dangerous reactions or non-atmospheric
conditions.

Basic Data

Standard ID	GB/T 25285.1-2021 (GB/T25285.1-2021)
Description (Translated English)	Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K35
Word Count Estimation	38,393
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration