GB 39177-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 39177-2020 | English | 80 |
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GB 39177-2020: Minimum allowable values of energy efficiency and energy efficiency grades for electric pressure cookers
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB39177-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Minimum allowable values of energy efficiency and
energy efficiency grades for electric pressure cookers
Issued on. JULY 23, 2020
Implemented on. AUGUST 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Energy efficiency grades... 5
5 Technical requirements... 6
6 Test methods... 7
Annex A (normative) Test methods for energy efficiency for electric pressure
cookers... 8
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by National Development and Reform
Commission, Ministry of Industry and Information Technology of the People's
Republic of China.
This Standard shall be under the jurisdiction of National Standardization
Management Committee.
Minimum allowable values of energy efficiency and
energy efficiency grades for electric pressure cookers
1 Scope
This Standard specifies energy efficiency grades, minimum allowable values of
energy efficiency and test methods for electric pressure cookers.
This Standard is applicable to electric pressure cookers that are heated by
electric heating elements or electromagnetic induction, of which the rated power
is not more than 2000W, the rated volume is not more than 10L, and the rated
cooking pressure is 40kPa~140kPa (gauge pressure).
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 4706.1, Safety of household and similar electrical appliances Part 1.
General requirements
GB 4706.19, Household and similar electrical appliances - Safety - Particular
requirements for heating liquids
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB
4706.1 and GB 4706.19 as well as the followings apply.
3.1 energy efficiency for electric pressure cookers
the ratio of effective output energy of electric pressure cooker to input electricity
4 Energy efficiency grades
4.1 Energy efficiency grades for electric pressure cookers
The energy efficiency grades for electric pressure cookers are divided into 3
grades (see Table 1), of which grade 1 is the highest.
5 Technical requirements
The minimum allowable value of energy efficiency for electric pressure cooker
is grade 3 index value of the energy efficiency grades in Table 1.
6 Test methods
The test methods for energy efficiency for electric pressure cookers, warm-
keeping energy consumption and standby power are in accordance with Annex
A.
Annex A
(normative)
Test methods for energy efficiency for electric pressure cookers
A.1 Test conditions
A.1.1 Test environment
The test environment shall meet the following conditions.
A.1.2 Power supply
The test of energy efficiency for electric pressure cookers shall be carried out
under the conditions at the rated voltage of 220V±2.2V and rated frequency of
50Hz±1Hz.
A.1.3 Measuring instruments
The measuring instruments shall meet the following requirements.
A.1.4 Water
Use tap water for the test.
A.1.5 Product initial conditions
Before each test, the difference between the inner pot, heating plate (induction
coil), outer shell and the ambient temperature is within 5°C or the product has
not worked for at least 6h.
A.2 Test methods
A.2.1 Test preparation
The test is carried out under the maximum cooking pressure function specified
in the electric pressure cooker instructions and the pressure cooking time is
greater than 30 min.
A.2.2 Determination of power consumption
During the test, the initial water temperature is 23°C±2°C.
The test procedures are as follows.
transmission instrument test data with the same or higher accuracy shall prevail.
A.2.3 Calculation of energy efficiency
The energy efficiency for electric pressure cookers is calculated according to
formula (1).
A.2.4 Determination of warm-keeping energy consumption
During the test, the initial water temperature is 23°C±2°C.
The test procedures are as follows.
A.2.5 Determination of standby power
Measure the power consumption of electric pressure cooker for 4h in the
standby state. Then use the arithmetic average method to calculate the hourly
power consumption, which shall be standby power. For products with wake-up
function, keep them in a non-wake-up state during the test.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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