GB/T 28519-2012General principles of energy consumption test methods for telecommunication equipment (English PDF)

2.1 Test Environment

2.1.1 Overview

Test environment should consider the impact of temperature, humidity, pressure, electric and magnetic fields and other factors, if there is a special test environment to test equipment

Demand should be specified test environment test, such as no special requirements for the test environment, it should be tested under the requirements of 2.1.2 ~ 2.1.5 environment.

2.1.2 Temperature

EUT shall be tested at 23 °C ± 5 °C temperature.

2.1.3 Humidity

EUT shall be tested at 30% to 75% relative humidity.

2.1.4 atm

EUT shall be tested at atmospheric pressure 86kPa ~ 106kPa.

2.1.5 Voltage

a) DC power supplies.

--- Rating contained on the device under test -48V should be selected -53V ± 1V DC voltage testing;

--- Rating of the device under test contains ± 24V should be selected ± 27V ± 0.5V DC voltage testing;

--- For other DC voltage level of the device under test, the rated input voltage should be selected for testing, tolerance ± 2%.

b) AC-powered equipment.

--- Single-phase power supply should V, 50 (1 ± 0.01) under the condition Hz AC voltage test in 220 (1 ± 0.01);

--- Three-phase power supply should be tested at 380 (1 ± 0.01) V, 50 (1 ± 0.01) Hz of AC voltages.

2.2 Measuring Instruments

For measuring the power of the device under test instruments, shall meet the following requirements.

a) not less than 80kHz input bandwidth;

b) True RMS AC voltmeter accuracy better than 1%; DC voltmeter accuracy better than 0.5%;

c) True RMS AC ammeter accuracy of better than 1%; DC ammeter accuracy of better than 0.5%;