This standard only specifies the uniform colors of indicator lights and buttons in electrical complete sets. GB 2682-1981 Colors of indicator lights and buttons in electrical complete sets GB2682-1981 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Colors of Indicators and
Buttons in Complete Electrical Installations
This standard only specifies the uniform colors of indicators and buttons in complete electrical installations. 2 PurposeWww.bzxZ.net
The significance of the use of uniform colors of indicators and buttons is to ensure personal safety and facilitate operation and maintenance. 3 Auxiliary representation
GB 2682-81
When color alone cannot represent the operating function or operating status, necessary graphic symbols or text symbols may be added on or near the device.
When required, an audible signal (including an execution button with a release sound) may be added in advance while the indicator light emits a colored fixed light or flashing information.
4 Standard provisions
4.1 Available colors
Red, yellow, green, blue and white are used for indicators: red, yellow, green, blue, black, white and gray are used for buttons. 4.2 Color selection principle
Select the color according to the function caused by the button being operated (pressed), or the information reflected by the indicator light after being turned on (lighting). 4.3 The role of flashing information
4.3.1 To attract attention;
4.3.2 To take immediate action:
4.3.3 The information reflected does not meet the requirements of the instruction; 4.3.4 To indicate the change process (flash during the process). The ratio of light to off time is generally selected between 1:1 and 4:1. For higher priority information, use a higher flashing frequency. 5 Color of indicator light
5.1 The role of light information
5.1.1 Indication: to attract the attention of the operator, or to indicate a certain operation that the operator should perform; 5.1.2 Execution: to reflect that a certain instruction, a certain state, certain conditions, or a certain type of evolution is being executed or executed. 5.2 Meaning of color instructions
Indicator light color and its meaning
Danger or emergency
Announced by the Bureau
The First Ministry of Machinery Industry of the People's Republic of China stated that
There is danger or immediate action is required
Lubrication system pressure loss:
Temperature has exceeded the (safety) limit
Shutdown due to action of protection device;
There is danger of touching live or pressurized parts. Implemented on July 1, 1982
Tianjin Electric Drive Design Institute
Shanghai Electric Complete Plant
6 Button color
Specify as needed
No specific intention
GB 2682--81
The situation has changed, or is about to change
normal or allowed
any specified purpose
except red, yellow and green. For example: when red, yellow and green cannot be used accurately
, and when used
as "execution",
"stop", "power off" or "accident" use red button; "start" or "power on" use green button first, black, white or gray button is allowed; one button has two functions: "start" and "stop" or "power on" and "power off"; for example,
continued Table 1
abnormal temperature (or pressure);
the semi-instrument can withstand the allowable short-term discussion
normal cooling and ventilation:
automatic control system is running normally Normal;
The machine is ready to start
Remote control indication;
Select the "set" position
If the function changes after pressing alternately, neither the red button nor the green button can be used, but the black, white or gray button should be used; if the movement is moved when pressed and stopped when lifted (such as inching or micro movement), the black, white, gray or green button should be used, preferably the black button, and the red button should not be used;
"Reset"
For single-function, use a blue, black, white or gray button; if there is a "stop" or "power off" function, use a red button. Button colors and their meanings
Black, gray, and white
Handling accidents
Emergency stop:
Extinguish burning
"Stop" or "Power off"
"Start" or "Power on"
Any designated purpose not included in the above colors No specific purpose
Normal stop;
Stop one or more motors;
Partial stop of the device;
Cut off a switch,
Reset with "stop" or "power off" function to prevent unexpected situations Condition:
Participate in suppressing abnormal conditions;
Avoid unnecessary changes (things to do)
Normal start:
Start one or more motors
Partial start of the device;
Connect a switch device (put into operation)
For purposes not covered by red, yellow and green, blue can be used Table 2
Any function except single-function "stop" or "power off" button 7 Illuminated pushbutton
7.1 Type
Type of pushbutton
GB 2682-81
Type of illuminated pushbutton
No specific color (non-color)
No specific color (non-color)
No change in color
Any color
Different colors (each color has its own light) 7.2 The provisions of Articles 5 and 6 also apply to illuminated pushbuttons. When it is difficult to choose a color, white is allowed. 7.3 Information function of light button
7.3.1 Instruction: The light on the button is turned on to inform the operator that he needs to press the button with the light on to complete a certain operation. After pressing, the light will be on to reflect that a certain instruction has been executed. When it is necessary to attract the operator's attention (such as an alarm), a flashing light button can be used. After the button is pressed, the flashing light can be changed to a fixed light. Before the cause of the alarm is eliminated, the fixed light will not be lit. 7.3.2 Execution: After pressing the light-off button, the light on the button will be turned on to reflect that a certain instruction has been executed (until the execution is released, the light will be turned off).
When pressed, if the flashing light on the button is on, it means that a certain instruction or a certain type of evolution is being executed. After the execution is completed, the flashing light must be automatically changed to a fixed light.
7.4 Light buttons shall not be used as emergency buttons. Appendix
Application type
High and low voltage rooms or
test areas
Distribution switchboard
Control and power supply devices of machines
Ventilators for extracting dangerous gases
Conveying devices in which the conveyed materials will solidify
When conveying stops
Main power circuit breaker
Branch switch
Power circuit breaker
Various starters
Starting of motors
Starting of motors
GB 2682-81
Examples of color selection for indicator lights
Installation location
On the entrance outside the room (area)
On the switch board
Operator's console
On the air duct opening
Operator's console
And in areas where
harmful gases may gather
Near the transport aircraft
Operator's console
Light information for the operator
It is dangerous to enter
Branch power supply
No power in the branch
Purpose of light information
There is a risk of electric shock
Indicator light is not on: No power supply
Ready
Machine running
Note: The fan is
extracting
Stop extracting
The conveyor is working,
Do not touch, leave
Normal operation
The conveyor is overloaded,
Reduce the load
Stop for overload, restart
Normal state
The machine or operating cycle
The system can be started, etc.
Ready
Confirmation of starting
Normal state
Action must be taken immediately
Selected color
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