GB/T 19854-2018General rules of explosion-proof techniques of industrial trucks for explosive atmospheres (English PDF)

1 Scope

This standard specifies the safety requirements and safety measures for industrial vehicles used in explosive atmospheres, including load handling devices (hereinafter referred to as vehicles).

Explosion-proof technical requirements such as inspection of these safety requirements and safety measures.

This standard applies to the design, manufacture and inspection of explosion-proof structures for industrial vehicles used in explosive atmospheres.

This standard does not apply to vehicles used in underground coal mines and explosive dust environments.

Note 1. The explosive environment is divided into.

a) Locations where gas, vapor or mist explosive gases may be present, defined as Zone 1 and Zone 2, respectively;

b) Locations where flammable dust may be present, defined as Zone 21 and Zone 22, respectively.

Note 2. Correspondence between vehicle grading and site zoning, as shown in Appendix A. In addition.

a) Explosive atmospheres of gases, vapours or mists may be further classified by Class II vehicles, depending on the type of gas mixture in the explosive atmosphere.

For IIA, IIB and IIC. Vehicles marked IIB may be applicable to the conditions of use of vehicles requiring the marking IIA; vehicles marked IIC Applicable to the conditions of use of vehicles requiring the markings IIA and IIB, but not for flammable gases and vapour containing carbon disulfide place.

b) Explosive atmospheres of dust and fly slags Class III vehicles may be further classified as IIIA according to the type of dust mixture in the explosive environment.

IIIB and IIIC. Vehicles marked IIIB may be suitable for use in vehicles requiring a sign IIIA; vehicles marked IIIC may be used

The conditions of use of vehicles requiring the markings IIIA and IIIB.

Note 3. When the vehicle is used in a place where the mixture is mixed, it is required to meet the requirements for gas, steam and mist as well as the requirements for dust.

Note 4. The fork, load handling device or associated attachment is a component of the vehicle; the attachment mounted on the carrier or fork is not a group of vehicles

Into the parts.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 1408.1 Test methods for electrical strength of insulating materials - Part 1

GB/T 1410 solid insulating material volume resistivity and surface resistivity test method

GB/T 3836 (all parts) Explosive environment

GB 3836.1-2010 Explosive atmosphere - Part 1. General requirements for equipment

GB 3836.2-2010 Explosive atmosphere - Part 2. Equipment protected by flameproof enclosure "d"

GB 3836.3-2010 Explosive atmosphere - Part 3. Equipment protected by an increased safety "e"

GB 3836.4-2010 Explosive atmosphere - Part 4. Equipment protected by intrinsically safe "i"

GB 3836.8-2014 Explosive atmospheres - Part 8. Equipment protected by the "n" type

GB 3836.9-2014 Explosive atmosphere - Part 9. Equipment protected by encapsulated "m"

GB/T 3836.15-2017 Explosive atmosphere - Part 15. Design, selection and installation of electrical installations

GB/T 3836.18-2017 Explosive atmospheres - Part 18. Intrinsically safe electrical systems

GB/T 3836.22-2017 Explosive atmosphere - Part 22. Protection measures for optical radiation equipment and transmission systems […]