安全网张挂安全技术交底.doc

安全网张挂安全技术交底

   安全网的质量必须符合GB5725-35规定，即外形尺寸为1.8×6m和4×6m两种，每张网的重量应少于15kg/张大于8kg/张，安全网分平网立网两种。立网的目数应在2000目（10CMX10CM）以上。
一、 平网：
安装平面不垂直于水平面，主要是用来接住坠落的人和物的安全网称为平网。
   ⒈平网要能承受重100kg底面积为2800cm2 的模拟人形砂包冲击后，网绳、边绳、系绳都不断裂（允许筋绳断裂），冲击高度10m最大延伸率不超过1.5m。
    旧网重新使用前，按GB5725-86规定，应全面进行检查，并签发允许使用证明方准使用。
    ⒉网的外观检查：
    ⑴  网目边长不得大于10cm，边绳、系绳、筋绳的直径不少于网绳的2倍，且应大于7mm。
    ⑵  筋绳必须纵横向设置，相邻两筋绳间距在30至100cm之间，网上的所有绳结成节点必须牢固，筋绳应伸出边绳1.2m，以方便网与网或网与模杆之间的拼接绑扎。（或另外加系绳绑扎）。
    ⑶  旧网应无破损或其他影响使用质量的毛病。
    ⒊网的选择：
    ⑴  根据使用目的，选择网的类型，根据负载高度
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