What is the safe range distance and how many meters is the safe distance

The safety distance is the distance between the front of the vehicle and the rear of the vehicle in front. When driving on a highway and the speed of the vehicle is more than 100 km/h, the safe distance should be more than 100 meters. When the speed of the vehicle is above 60kmh, the safe distance should be equal to the speed; For example, at a speed of 80 km/h, the safe distance between the vehicles is 80 meters.

When the speed of the vehicle is about 50km h, the safe distance of the vehicle is not less than 50 meters. When the speed is less than 40kmh, the safe distance of the vehicle should not be less than 30 meters.

There is no absolute concept of safe distance, it depends on the situation. Generally speaking, the faster and heavier the vehicle, the longer the interval required for a safe distance. The safe distance can also be affected by many other factors, such as weather conditions and light intensity.

Driver vision, braking equipment, road conditions, etc. When the general speed is more than 100kmh, the safe distance between the car is more than 100 meters.

<>1. Intimate distance (meters). The minimum distance in interpersonal relationships, people within this range, belong to the intimate relationship that can be talked to each other.

2. Personal distance (meters). It belongs to the distance with a slight sense of proportion in interpersonal communication, there is not much physical contact with each other, friends and acquaintances belong to this distance, if it is more compatible among acquaintances, the distance between each other is closer to the meter.

3. Social distancing (meters). This distance is more formal in terms of social or etiquette, and people mostly maintain this polite distance in formal places and social gatherings.

4. Public distance (meters). It is generally the distance between unrelated strangers, but also the distance between public speakers and audiences. In this range, people can have no contact with each other, and they can even turn a blind eye to each other.

That's it for the safe distance between people. Between strangers, once someone breaks this distance and wants to enter the "personal distance", it will make the other person feel uncomfortable and want to stay away immediately.

The flaw detection is generally Y-ray, and the safety distance is generally about 200 meters.

Testing. Detect cracks or defects inside metal materials or components. Commonly used flaw detection methods are:

X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetration flaw detection, eddy current flaw detection, radiographic flaw detection and other methods. Physical testing is the non-destructive testing of non-destructive testing without chemical changes.

Definition. Commonly used flaw detection methods are: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, eddy current flaw detection, radiographic flaw detection, penetration flaw detection (fluorescence flaw detection, color flaw detection) and other physical flaw detection methods.

Physical flaw detection is to carry out non-destructive testing without chemical changes.

Range. 1. Inspection of weld surface defects. Check the welding quality such as cracks, lack of penetration and leakage on the surface of the weld.

2. Inner cavity inspection. Inspect surface for defects such as cracks, peeling, wires, scratches, pits, bumps, spots, corrosion, etc.

3. Status check. When some products (such as worm gear pumps, engines, etc.) work, endoscopic testing is carried out according to the items specified in the technical requirements.

4. Assembly inspection. When there are requirements and needs, use Yatai Optoelectronics Industrial ** endoscope to check the assembly quality; After the assembly or a certain process is completed, check whether the assembly position of each component meets the requirements of the drawing or technical conditions; Whether there are assembly defects.

5. Check for excess items. Check the residual internal chips in the inner cavity of the product, foreign objects and other collapsed residues.

1. The minimum safety distance of AC voltage:

The minimum safe distance of 10kV and below is meters.

The minimum safe distance for kV is meters.

The minimum safe distance of 63 (66) 110kv is meters.

The minimum safe distance of 220kV is meters.

The minimum safe distance of 330kV is meters.

The minimum safe distance of 500kV is meters.

The minimum safe distance of 750kV is meters.

The minimum safe distance of 1000kv is meters.

2. The minimum safety distance of DC voltage:

The minimum safe distance of 50kV is meters.

The minimum safe distance of 500kV is meters.

The minimum safe distance of 660kV is meters.

The minimum safe distance of 800kV is meters.

Safe evacuation distance.

Refers to the maximum allowable distance from the building's safe evacuation exit to the deepest part of the building's interior.

The safe evacuation distance is designed for the fire prevention ability of the building, the safety evacuation exit includes the building exit, the staircase, etc., and the safety evacuation measures include the aisle, staircase, smoke exhaust facilities, emergency lighting, etc., the number of safety exits of the general building should be greater than or equal to two, and the width of the evacuation channel needs to be determined according to the number of people in the building, and must be kept unobstructed.

In the process of fire evacuation, the most important thing is the evacuation door, the opening direction of the evacuation door must be open in the direction of evacuation, can not use turnstile doors, hanging doors, side sliding doors, the door can be pushed open at any time inside the building, the threshold can not be set, it is forbidden to lock, and emergency lighting devices should be set above the evacuation door.