GB/T 34663-2017General technical requirements for electric resistance heaters used in explosive gas atmospheres (English PDF)

1 Scope

This standard specifies the flameproof, increased safety or explosion-proof - by-composite resistance heater general technical requirements and test requirements.

This standard applies to explosive gas atmospheres installed and used in the rated voltage 1140V and below Class II metal heating element shell

Hermetic resistance heater.

This standard does not apply to the following resistance heater.

--- Heating medium does not need oxygen to burn or explosion or unstable chemical resistance heater;

--- Induction heating, skin effect heating, dielectric heating or any other heating system, including the current through the liquid, the shell or pipe plus

Thermal system

--- Medical equipment;

--- Used in the piping, tanks and related equipment used to increase or maintain the temperature of such equipment without direct contact was added

Heating medium heating cable, heating pad, heating plate and other heating equipment.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

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

GB/T 150.1 Pressure vessels - Part 1. General requirements

GB/T 2828.1 Sampling procedures for inspection - Part 1. Batch inspection sampling plan by acceptance quality limit (AQL) (GB/T 2828.1-2012, ISO 2859-1..1999, IDT)

GB/T 2900.35-2008 Electrotechnical terminology Equipment for explosive atmospheres (IEC 60050-426..2008, IDT)

GB 3836.1-2010 Explosive atmospheres - Part 1. General requirements for equipment (IEC 60079-0..2007, MOD)

GB 3836.2-2010 Explosive atmospheres - Part 2. Equipment protected by flameproof enclosure "d" (IEC 60079-1..2007,

MOD)

GB 3836.3-2010 Explosive atmospheres - Part 3. Equipment protected by increased safety "e" (IEC 60079-7..2006, IDT)

GB/T 3836.15-2017 Explosive atmospheres - Part 15. Design, selection and installation of electrical installations (IEC 60079-14.

2007, MOD)

GB/T 4208 enclosure protection (IP code) (GB/T 4208-2017, IEC 60529..2013, IDT)

GB/T 14536.10 Household and similar electrical automatic controlgear Particular requirements for temperature-sensitive controller (GB/T 14536.10-

2008, IEC 60730-2-9..2004, IDT)

GB/T 16895.20 electrical installations in buildings - Part 5. Selection and installation of electrical equipment Chapter 55. Other equipment

Section 551. Low voltage power generation equipment (GB/T 16895.20-2003, IEC 60364-5-551..1994, IDT)

GB/T 22687 bimetallic temperature controllers for household and similar purposes

GB/T 22688 pressure-type temperature controller for household and similar purposes

3 Terms and definitions

GB/T 2900.35-2008 defined in the following terms and definitions apply to this document.