1. The grade of electric rolling shutter door is based on the index of anti damage time, plate thickness, etc. According to the new standard, the security level of anti-theft is adjusted to four levels, namely "a", "B", "C" and "d", and the level of "a" is advanced, and then decreases. The anti damage time of the electric rolling shutter door is also decreasing step by step, and the low level D is as little as 6 minutes.

2、電動卷簾門的門扇，門扇的鋼質板材厚度。甲、乙、丙、丁級分別應達到2毫米、2毫米、1.8毫米和1.5毫米。鋼板的厚度直接關系到電動卷簾門防盜性能。好的鋼質電動卷簾門骨架中有石棉等具有防火、保溫、隔音功能等填充材料。

2. The door leaf of electric rolling shutter door, the thickness of steel plate of door leaf. Grade A, B, C and D should be 2mm, 2mm, 1.8mm and 1.5mm respectively. The thickness of steel plate is directly related to the security performance of electric rolling shutter door. Good steel electric rolling shutter door skeleton has asbestos and other filling materials with fire prevention, heat preservation, sound insulation functions.

3、電動卷簾門標記。新標準還增加了可以幫助消費者識別電動卷簾門真偽的內容，就是要求電動卷簾門應有永 久性固定標記。電動卷簾門標記共由3部分組成，標記符號為拼音字母，從左到右分別為防盜門代號（fam）、防盜級別和企業自定義特征（包括企業代號和產品代號兩部分）。其中，防盜級別標記永 久固定在內側鉸鏈邊上角距地面高度160厘米左右的位置上。而“金屬門”、“鋼制門”、“進戶門”等均不是電動卷簾門，提醒消費者在采購電動卷簾門的時候要仔細辨別。

3. Electric roller shutter door marking. The new standard also adds the content that can help consumers identify the authenticity of the electric roller shutter door, which requires that the electric roller shutter door should have a permanent fixed mark. The mark of electric rolling shutter door is composed of three parts. The mark symbols are Pinyin letters. From left to right, they are anti-theft safety door code (FAM), anti-theft safety level and enterprise custom features (including enterprise code and product code). Among them, the anti-theft security level mark is permanently fixed on the position of 160 cm above the ground on the inner hinge edge. And "metal door", "steel door", "door" are not electric roller shutter door, remind consumers to carefully identify when purchasing electric roller shutter door.
              

4、觀察電動卷簾門的結構是否精 密，潤滑程度好壞，好的電動卷簾門散熱比較，采用全齒輪轉動，無鏈條、無皮帶，進而增強了卷簾門機芯整體壽命。

4. Observe whether the structure of the electric rolling shutter door is precise, the lubrication degree is good or bad, good electric rolling shutter door heat dissipation comparison, using full gear rotation, no chain, no belt, thus enhancing the overall service life of the rolling shutter door movement.

5、電動卷簾門鎖具。電動卷簾門有自鎖、防撬的功能。按新標準規定，電動卷簾門的鎖具應能在防破壞時間內，即使鉆掉鎖芯、撬斷鎖體連接件從而拆卸鎖具或通過上下間隙伸進撬扒工具，松開鎖舌等，也無法打開門扇；門框與門扇間的鎖閉點，按照防盜級別甲、乙、丙、丁應分別不少于12個、10個、8個和6個；電動卷簾門主鎖舌伸出有效長度應不小于16毫米，并應有電動卷簾門鎖舌止動裝置。

5. Electric rolling shutter door lock. The electric rolling shutter door has the function of self-locking and anti prying. According to the new standard, the lock of the electric rolling shutter door should be able to open the door leaf within the anti damage time, even if the lock cylinder is drilled out, the lock body connector is pried off to remove the lock, or the prizing tool is extended through the upper and lower clearance, and the lock tongue is loosened; The number of locking points between the door frame and the door leaf shall not be less than 12, 10, 8 and 6 respectively according to the security level a, B, C and D; The effective extension length of the main lock tongue of the electric rolling shutter door shall not be less than 16 mm, and there shall be a stop device for the lock tongue of the electric rolling shutter door.

6、購買時還應注意“防盜門”的“FAM”標志、企業名稱、執行標準等內容，符合標準的門才能既又可靠。

6. When purchasing, we should also pay attention to the "fam" sign, enterprise name, executive standard and other contents of the "anti-theft safety door". Only the door that meets the standard can be safe and reliable.

7、為了提高電動卷簾門運行平穩程度，要增強拉力，不能存在慣性滑行的現象，要具有雙面自動卡鎖功能。

7. In order to improve the smooth operation of the electric rolling shutter door, it is necessary to enhance the tension, avoid the phenomenon of inertial sliding, and have the function of double-sided automatic locking.