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GB/T 33873-2017 English PDF (GBT33873-2017)

GB/T 33873-2017 English PDF (GBT33873-2017)

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GB/T 33873-2017: Testing method of energy efficiency for hot aging test oven

This Standard specifies the terms and definitions, technical requirements, testing conditions, testing methods for hot aging test oven.
GB/T 33873-2017
GB
NATIONAL STANDARD OF
THE PEOPLE REPUBLIC OF CHINA
ICS 27.010
F 01
Testing method of energy
Efficiency for hot aging test oven
ISSUED ON. JULY 12, 2017
IMPLEMENTED ON. FEBRUARY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Product technical requirements ... 5
5 Testing conditions ... 5
6 Measuring methods ... 7
7 Calculation method of energy efficiency ... 8
Foreword
This Standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee on Laboratory Instrument and Equipment of Standardization Administration of China (SAC/TC 526).
The drafting organizations of this Standard. Machinery Industry
Instrumentation Technology and Economy Institute, Guangdong Institute of Product Quality Supervision and Inspection, Yangzhou Optoelectronics
Products Testing Center, Chongqing Sida Test Equipment Co., Ltd.,
Guangzhou Wusuo Environmental Equipment Co., Ltd., Hangzhou Xuetemp
Technology Co., Ltd., Shanghai Institute of Measurement and Testing
Technology, Chengdu Yihua Tianyu Test Equipment Co., Ltd., Shanghai
Aisipeike Environmental Equipment Co., Ltd., Shenzhen Institute of
Standards and Technology, Wuxi Sunan Test Equipment Co., Ltd., Hunan
Institute of Measurement and Testing, Zhejiang Institute of Metrology,
Guangzhou Institute of Energy Testing, Shenzhen National Technology
Instrument Co., Ltd., Zhuhai Gree Electric Co., Ltd., China University of Metrology.
Main drafters of this Standard. Zhang Guiling, Gao Xiaodong, Wei Yuefeng, Wang Chengcheng, Tang Lihua, Li Siyuan, Chen Jinhan, Chen Yunsheng,
Xie Chenhao, Xu Yueming, Tang Suiping, Feng Hua, Ling Yancui, Huang
Qiang, Wang Ke, Wu Shuangshuang, Wan Yong, Zhou Lianqin, Zhu Ping,
Pang Yan, Chen Shuai, Duan Huawei, Meng Jiawen, Zhou Siqing, Huang Yu,
Hu Fen, Chen Qiyong, Hu Xiaofeng, Jiang Jianhui, Xie Xiaofang.
Testing method of energy
efficiency for hot aging test oven
1 Scope
This Standard specifies the terms and definitions, technical requirements, testing conditions, testing methods for hot aging test oven (hereinafter referred to as the test oven).
This Standard applies to energy efficiency test of air hot aging test oven, gravity convection electric oven and forced ventilation electric oven that use electric energy as heating energy, air as conduction medium.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 10592-2008, Specification for low/high temperature test chambers
GB/T 30435-2013, Electric gravity convection and forced ventilation ovens JB/T 7444-1994, Air heat-up ageing tests box
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 3.1 hot aging test oven
closed box or space with specified high temperature and fresh air ventilation 3.2 gravity convection electric oven
a closed box obtaining the specified stable high temperature by electric heating and with natural convection of air
3.3 forced ventilation electric oven
a closed box obtaining the specified stable high temperature by electric The ambient conditions for the test oven shall meet the following.
a) ambient temperature. 23??C ?? 2??C, the temperature gradient of ambient temperature measuring point at the vertical direction shall not exceed
2??C/m;
NOTE. ambient temperature (space temperature around the test oven) refers to the temperature measured at the measuring point, 1m from vertical central line of the test oven wall, 1m from the ground (the ambient temperature is not affected by the outlet temperature of the test oven).
b) relative humidity. ???85%;
c) air pressure. 80kPa ~ 106kPa;
d) without forced convection air.
5.2 Power supply conditions
The power supply testing conditions for the test oven shall meet the following. a) AC voltage. 220V ?? 6.6V or 380V ?? 11.4V;
b) frequency. 50Hz ?? 0.5Hz.
5.3 Testing equipment
5.3.1 Energy measuring instrument
Measuring range. voltage, current measurement range shall meet the testing requirements.
Maximum allowable energy measurement error. no more than ?? 0.5%.
Usage. measurement of active energy consumption of the test oven.
5.3.2 Power meter
Measurement range. voltage, current measurement range shall meet the
testing requirements.
Maximum allowable power measurement error. no more than ?? 0.5%.
Usage. measurement of active power consumption of the test oven.
5.3.3 Temperature recorder
Temperature measurement range. 0??C ~ 300??C.
Maximum allowable error. ??0.5??C.

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