IEC 60669-1 Load Cabinet for Switches Intended for Self-ballasted
Lamp Loads Life Test
Standards & Clauses:
IEC60669-1:2017 "Switches for household and similar
fixed-electrical installations - Part1:General requirements" clause
19.3.
Samples and Restrictions:
Switches intended for self ballasted lamp loads.
Application:
It is used to test the breaking capacity of the switches intended
for self ballasted lamp loads.
Test Principle:
Switches intended for self ballasted lamp (SBL) loads shall
withstand, without excessive wear of other harmful effect, the
electrical and thermal stresses occurring when controlling self
ballasted lamp circuits.
The purpose is to check whether the switch has continuous
flashover, whether the contacts are welded, closed or disconnected
for a long time, excessively worn or otherwise.
Structure Features:
The load cabinet uses an integral steel structure frame and a
Toyota white seal plate. The control panel is in the upper part of
the equipment, there are external power switch, voltmeter and power
display instrument, alarm and touch screen, resistor and capacitor
load combinations, AC contactors and relays. There are terminals in
the lower part of the load cabinet, which is connected with the
specimen through the cables to output current and voltage during
the detection process.
Main features:
1. The load conditions required by the standard has been preset
before factory. As long as the test voltage is adjusted to 250V~,
operator presses switch button corresponding to the rated current
of the switch to be tested, then the rated power, shock waveform,
Ipeak and I2t meet the corresponding requirements of the standard.
2.The input voltage and output power can be digital displayed, the
surge current can be observed on the pointer current meter.
3. There are 3 working stations, 3 switches can be tested at the
same time.
4. With calibration mode and calibration dedicated port, built-in
90-degree closing plate, easy for measuring output waveform, Ipeak
current value and I2t energy value, thus, fully meets the standard
requirements of calibration.
5. The device is equipped with a voltage regulator, which can
achieve the voltage of 250V~ required by the switch test without
external voltage regulator.
Dimensions of the equipment: approx.: 800 × 800 × 1800 (mm) W × D ×
H, weight: 200kg
Technical Parameters:
| Test Channels | 1 or 2 or 3 channels can be customized, independently output |
| Electrical Control Method | Touch screen + button control, digital display |
| Voltage Display Value | 0～300V, accuracy level 0.5 |
| Power Display Value | 0～9KW,accuracy level 0.5 |
| Output Voltage | 0-280V adjustable, ensure test voltage to be 250V~ |
| Preset Rated Voltage of Switch | Each channel 250V~,rated current 10A,13A,16A,20A are optional |
| Working Parameter Setting | All parameters are set according to 250V~, including W, Ipeak, I2t
and surge current waveforms. |
| Calibration Function | Each set of equipment provides a closing control device (select the
“calibration” function on the touch screen), and each time it is
conducted at a 90 degree angle, this function can be used for
initial adjustment and calibration verification of the equipment. (The calibration method is to extract the current waveform from an
external oscilloscope, and then use the calculation method to
obtain the I2t value, the oscilloscope is provided by client) |
| Protective Function | Long time breaking / long time conduction protection, protection
time: 1 ~ 99S can be preset, the equipment will be stopped and
alarm will be given out when protection occurs. |
This load cabinet cooperating with an switch endurance test machine
and an oscilloscope can compose a whole automatic test system (SN225B) for switches intended for
self-ballasted lamp loads:
