NB/T 10290-2019Electronic switches for centralized control (English PDF)

3.1 Emergency power terminal

Used to connect emergency lighting (fire) power supply and achieve the purpose of centralized control of electronic switches.

Note: The electronic switch with emergency power terminal and used for centralized control of emergency lighting system; when this terminal is connected to the standby emergency power phase line, the switch is In the closed state.

This switch can be used in stairwells, corridors, aisles and other places.

The wiring diagram of this switch is shown in Figure 1 and Figure 2.

3.2 Emergency power terminal compatibility

When any other load is connected in parallel between the emergency power terminal and the neutral line N, the normal characteristics of the electronic switch will not be affected.

Note: See Figure 3 for the compatible connection diagram of "Emergency Power Terminal".

3.3 Centralized control capacity

The sum of the loads simultaneously connected in parallel on the centralized control line connected to the emergency power terminal.

4.1 Classification by starting mode

--Touch switch;

--Proximity switch;

--Light control switch;

--Voice control switch;

--Human infrared sensor switch;

--Doppler effect switch;

--Other external sensor switches.

4.2 Classification by delay or not

--Delay switch;

--Non-delay switch.

6.1 Safety requirements

The safety requirements of electronic switches should meet the requirements of GB/T 16915.2-2012.

6.2 Dimensions

The size of the panel and installation box of the electronic switch shall comply with the regulations of JB/T 8593 or the manufacturer's declaration.

6.3 Performance requirements

6.3.1 Overview

The performance of the electronic switch should meet the requirements of JB/T 11899.

In addition to meeting the requirements of the above electronic switch standards, the electronic switch of the centralized control should also meet the special requirements of 6.3.2 and 6.3.3 begging.

6.3.2 "Scheme 1" electronic switch that can be centrally controlled When the emergency lighting system is started and the "L end" and "emergency power terminal" are connected to the power source, unless the main circuit switching element is permanently For sexual disconnection (burnt out), the electronic switch should be able to normally connect to the electrical circuit (not affected by the voltage level and whether the electronic circuit is working properly).

6.3.3 "Scheme 2" electronic switch that can be centrally controlled When the emergency lighting system is activated and the "L terminal" and "emergency power terminal" are connected to a power source whose voltage meets the conditions of use of the electronic switch, the Normally working electronic switches can be connected to the electrical circuit through the control circuit. For the B-type switch due to insufficient voltage or damage to the control circuit, the set Central control failure is allowed.

6.4 Wiring fault tolerance

The electronic switch of the centralized master control, when a different phase line (line voltage) is connected between the emergency power terminal and the live wire L end, the electronic switch There must be no damage that affects safety.

6.5 Emergency power terminal compatible

The electronic switch of the centralized control, when any load is connected in parallel between the emergency power terminal and the neutral line N, the electronic switch should be able to work normally.

6.6 Scale of centralized control

For electronic switches that meet the requirements of this standard, after the emergency power terminal is connected to the centralized main control line, when the centralized main control line is connected in parallel at the same time, When over 2 000 W resistive load, or no more than 500 W capacitive load, or no more than 500 W inductive load, the electronic switch should work normally.

6.7 Logo

In addition to the signs specified in other standards, for electronic switches that can be centrally controlled, the centralized control terminal should have the identification mark "C";

For the electronic switches that can be centrally controlled in "Scheme 2" and "Scheme 3", there should be a warning label on the smallest package of the product "This type of switch is not applicable "Fire fighting site" logo.

7.1 Overview

In addition to meeting the test conditions and requirements specified in the relevant standards of electronic switches, the electronic switch of the centralized control should also meet the requirements of 7.2 and 7.3. special requirements.

The test load must meet the requirements of 19.2 in GB/T 16915.1-2014.

7.2 Wiring fault tolerance test

When connecting different phase lines (line voltage) between L terminal and C terminal, the electronic switch should work normally. Experiment with three new samples, Methods as below.

Preparation. Install the sample according to the normal use method, and connect the load of rated power, and connect 2 000 between the C terminal and the neutral line of the electronic switch.

W resistive load, 500 W capacitive load, 500 W inductive load, all loads including the sample switch are connected to the power supply through a switch SC Another phase line connection, by closing the switch SC, a line voltage can be applied between the L terminal and the C terminal, and the initial state of the SC is disconnected.

The following tests are conducted for the initial state of the electronic switch as being disconnected.

The initial state of the electronic switch is the off state (the load goes out);

a) Start the control operation on the tested sample and turn on the load;

b) Close the SC for 120 min. During the test, apply opening and opening operations 10 times. These operations should be evenly distributed throughout the entire During the test

c) Disconnect the SC control switch.

During the entire test period, the electronic switch shall not be damaged that affects safety, and the surface temperature rise of the electronic switch shall meet the requirements of JB/T 11899.

The connection diagram of the wiring fault tolerance test is shown in Figure 5.

7.4 Reliability classification judgment test of centralized control

The drive circuits of the main circuit switching elements of the three new samples in the disconnected state were destroyed as test samples. Connect the lines and samples as described in 7.2 "Preparation".

The switch SC is repeatedly closed and opened, and the load is controlled by the switch SC and the light and dark changes are scheme 1, otherwise it is regarded as scheme 2.