安全網張掛安全技術交底.doc

安全網張掛安全技術交底

   安全網的質量必須符合GB5725-35規(guī)定，即外形尺寸為1.8×6m和4×6m兩種，每張網的重量應少于15kg/張大于8kg/張，安全網分平網立網兩種。立網的目數應在2000目（10CMX10CM）以上。
一、 平網：
安裝平面不垂直于水平面，主要是用來接住墜落的人和物的安全網稱為平網。
   ⒈平網要能承受重100kg底面積為2800cm2 的模擬人形砂包沖擊后，網繩、邊繩、系繩都不斷裂（允許筋繩斷裂），沖擊高度10m最大延伸率不超過1.5m。
    舊網重新使用前，按GB5725-86規(guī)定，應全面進行檢查，并簽發(fā)允許使用證明方準使用。
    ⒉網的外觀檢查：
    ⑴  網目邊長不得大于10cm，邊繩、系繩、筋繩的直徑不少于網繩的2倍，且應大于7mm。
    ⑵  筋繩必須縱橫向設置，相鄰兩筋繩間距在30至100cm之間，網上的所有繩結成節(jié)點必須牢固，筋繩應伸出邊繩1.2m，以方便網與網或網與模桿之間的拼接綁扎。（或另外加系繩綁扎）。
    ⑶  舊網應無破損或其他影響使用質量的毛病。
    ⒊網的選擇：
    ⑴  根據使用目的，選擇網的類型，根據負載高度
Security safety net technical disclosure display

   Safety nets must meet the GB5725-35 requirement that the external dimensions 1.8 × 6m and 4 × 6m two, each with a net weight should be less than 15kg / Zhang greater than 8kg / Zhang, safety net sub-network of two kinds of flat screen stand . The mesh network should be established in the 2000 project (10CMX10CM) above.
1, flat screen:
Installation is not perpendicular to the horizontal plane is mainly used to catch falling objects and the safety net known as the flat screen.
   ⒈ flat screen to be able to bear weight 100kg bottom area of 2800cm2 simulated humanoid sand bag after impact, net rope, side rope, tether did not break (allowing the tendon cord fracture), the impact of a high degree of maximum elongation of not more than 10m 1.5m.
    Before re-use the old network, according to GB5725-86 provides for the comprehensive examination, and issue a permit to use that are allowed to use.
    ⒉ Network Appearance check:
    ⑴ side mesh no larger than 10cm, side rope, tether, reinforced rope rope diameter of not less than 2 times the network, and should be greater than 7mm.
    ⑵ rope to vertical and horizontal bars to set the two adjacent bars rope spacing between 30 to 100cm, online all the knots into a node must be a solid, reinforced wire rope should be stretched out side of 1.2m, to facilitate the network and the network or network and model Binding between the splice bar. (Or additionally tether lashing).
    ⑶ old network should be no damage or other problems affecting the quality.
    ⒊ network options:
    ⑴ according to the purpose of use, select the network type, depending on the load height
 

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