GB/T 7287-2008Test method of infrared heater (English PDF)

Foreword

This standard replaces GB/T 7287.1 ~ GB/T 7287.12-1987 "Test method of infrared heater". As compared with the latter, the main changes of this standard are as follows.

- In accordance with the development of infrared heater manufacturing and testing technology, EXTEND the scope of application from the medium temperature infrared heater to a variety of low temperature, medium temperature and high temperature infrared heater.

- ADD three parts. "Normative references", "Terms and definitions", and "Product classifications".

- In accordance with the changes of relevant standard, ADD the test methods of such performance indicators as "leakage current and electrical strength at working temperature", "moisture resistance", "effective radiation energy ratio and distribution temperature", "terminal tensile force", "mechanical strength", "bending test", "peel strength", "flame retardant performance", "low temperature storage", and "overload capacity", and so on.

- As for the measurement of normal total emissivity, ADD the "thermal image measurement method" (method B) on the basis of the "relative radiometer method".

- As for the electrical heat radiation conversion efficiency, ADD the "thermal image measurement method" (method B) and the "distribution radiancy method" (method C) on the basis of the "radiometer method".

1 Scope

This standard specifies the performance test method for infrared heaters (hereinafter shortly referred to as "heaters").

This standard applies to the infrared heaters, including various low temperature, medium temperature and high temperature metallic matrix or non-metallic matrix electrical infrared heaters.

This standard describes the basic characteristics of infrared heaters AND specifies the methods to test these characteristics, for reference by the user.

QB/T 2057-2006 Infrared lamps

2 Normative references

The provisions in following documents become the provisions of this Standard through reference in this Standard. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard; however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable.

For undated references, the latest edition of the referenced document applies.

GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Test Fc. Vibration (sinusoidal) (IEC 60068-2-6:1995, IDT)

GB/T 2900.23-2008 Electrotechnical terminology - Industrial electroheat (IEC 60050-841:2004, IDT)

GB 4706.1-2005 Household and similar electrical appliances - Safety - Part

GB 4706.8-2003 Household and similar electrical appliances - Safety - Particular requirements for blankets pads and similar flexible heating appliances (IEC 60335.21:1998, IDT)

GB/T 8808-1988 Test method for peeling of soft composite plastic materials (neq DIN 53357:1982)

GB/T 10066.1-2004 Test methods for electroheat installations - Part 1: Generic (IEC 60398:1999, MOD)

GB/T 10066.12-2006 Test methods for electroheat installations - Part 12: Infrared heating installations

3 Terms and definitions

The terms and definitions as defined in GB/T 2900.23-2008 and GB/T 10066.12-2006 AND the following terms and definitions apply to this part.

4 Product classification

5 Test items

5.1 Testing of the dimension, shape and appearance of the heater (Chapter 7);

5.3 Measurement of ratio of heater radiant surface to the back surface temperature (Chapter 9);

5.4 Measurement of temperature rise time of the heater (Chapter 10);

5.5 Measurement of heater power deviation (Chapter 11);

5.6 Test of leakage current and electrical strength of heater at working temperature (Chapter 12);

5.7 Test of moisture resistance of heater (Chapter 13);

5.8 Test of leakage current and electrical strength of heater (Chapter 14);