There are several levels of security doors

Generally, the anti-theft door products are divided into 4 levels according to the length of anti-destruction time, plate thickness and other indicators of the anti-theft security door: A, B, C, D.

When buying an anti-theft door, many merchants advertise that their products are B or C, what does the level of the anti-theft door mean? How to tell the difference? The level of the security door refers to the level of its security, and the security level of the security door is generally divided into three types: A, B and C.

Class C has the highest anti-theft performance, and is mainly used in places with particularly high anti-theft requirements in military, financial, cultural relics and other departments. Grade B is second, and Grade A is the lowest. Most of the civil security doors sold on the market are Class A and B.

It is not enough to have an introduction from the manufacturer and the seller, it is important to look at the relevant information documents in detail. The security door is an important product related to the life and property safety of thousands of households. The legal production and distribution of security doors should meet the following two conditions:

1) There must be a production and distribution license issued by the Technical Prevention Management Office of the local public security bureau.

2) The production and distribution of security doors must be tested by the regional technical supervision bureau and the product quality supervision and inspection station authorized by the public security organs in accordance with the law.

The security level of the security door is generally divided into three types: A, B and C. Class C has the highest anti-theft performance, and is mainly used in places with particularly high anti-theft requirements in military, financial, cultural relics and other departments. Grade B is second, and Grade A is the lowest.

The anti-theft level of the anti-theft door is divided into: A, B, C, D four levels. The anti-vandalism time shall not be less than 30 minutes for Class A, not less than 15 minutes for Class B, not less than 10 minutes for Class C, and not less than 6 minutes for Class D.

The national standard for anti-theft doors has relevant regulations on lock cylinders, deadbolts, markings, etc. Security doors can be classified according to door type and surface material. Generally, household security doors are mainly C, D, the higher the level, the higher the anti-theft performance.

The anti-theft door lock cylinder is divided into three grades: A-level, B-level, and super B-level. Among them, the anti-vandal opening time of the A-class lock cylinder is more than 15 minutes, and the anti-technical opening time is more than 1 minute.

The anti-vandal opening time of the B-class lock cylinder is more than 30 minutes, and the anti-technical opening time is more than 5 minutes. The anti-technical opening time of the super B-level anti-theft door lock cylinder is more than 4 hours.