With this acquisition , schneider electric adds a full range of metal and plastic trunking and cable trays to its existing low voltage offer 通过此次收购，施耐德为其已有低压产品提供了全系列的金属和塑料中继和电缆圈。
The company jiangsu chengcheng electric co . , ltd . offers services from the ranges trays , cable trays in addition to trays 是一家栅栏、围栏范围内，以及立柱、 （四脚）支架、千斤顶、电缆槽和支撑、控制范围内可靠的工业型企业。
Standard test method for smoke obscuration of insulating materials contained in electrical or optical fiber cables when burning in a vertical cable tray configuration 电缆或光缆中绝缘材料在立式电缆槽结构中燃烧时的烟雾遮蔽性标准试验方法
Test method for heat release , flame spread and mass loss testing of insulating materials contained in electrical or optical fiber cables when burning in a vertical cable tray configuration 电缆或光缆绝缘材料在立式电缆槽装置中燃烧时热发散火焰传播和质量损失测试的试验方法
To determine the span of cable tray supports ， besides to meet the uniform load less or equal rated uniform load , but also to meet the deflection ( in unit ) less or equal l / 200 在确定支、吊架跨距中，除满足工作均布载荷小于或等于额定均布载荷之外，还要满足相对挠度小于或等于l / 200 。
I production plants cable tray products , quality certification by the beijing municipal technical supervision , after beijing product quality supervision , inspection and testing by qualified 我厂生产的电缆桥架产品，通过北京市技术监督局质量认证,经过北京市产品质量监督检验所检验合格。
The bracket and vertical column of cable tray will be installed by welding or expansion bolt of the basement . the welding place treatment will be done by painting 桥架的立柱、托臂等支架可与基础预埋件焊接固定，也可采用膨胀螺栓固定，对于现场焊接处一定要做好防腐处理，通常由用户现场涂刷防腐漆。
Standard test method for heat release , flame spread , smoke obscuration , and mass loss testing of insulating materials contained in electrical or optical fiber cables when burning in a vertical cable tray configuration 电缆或光缆绝缘材料在立式电缆槽装置中燃烧时热发散火焰传播烟的昏暗度和质量损失测试的标准试验方法
Surface treatment of cold galvanizing , hot dip galvanized , plastic spraying , fire coatings , paint , and also produces aluminum alloy , stainless steel , glass steel , fire - retardant products such as cable tray 产品表面处理有冷镀锌、热镀锌、喷塑、防火涂料、烤漆等，并且还生产铝合金、不锈钢、玻璃钢、阻燃等电缆桥架产品。
From above calculating : the longer span of supports , the less load of cable tray . customers select not only the span of cable tray , but also to pay attention the load of cable tray 可见，支吊架跨距越大，托盘、梯架的承载能力越小，用户和设计单位在选用时一定要注意，不要仅着重选择桥架的跨度而忽视了桥架的承载计算。
