山东电缆桥架线槽什么情况下设置和不设置跨接线的要求

　　GB 50169-2016《电气装置安装工程 接地装置施工及验收规范》4.3.9条：金属电缆桥架的接地应符合下列规定：宜在电缆桥架的支吊架上焊接螺栓，和电缆桥架主体采用两端压接铜鼻子的铜绞线跨接，跨接线小截面积不应小于4mm?。电缆桥架的镀锌支吊架和镀锌电缆桥架之间无跨接地线时，其间的连接处应有不少于2个带有防松螺帽或防松垫圈的螺栓固定。GB 50303-2015《建筑电气工程施工质量验收规范》11.1.1条：金属梯架、托盘或槽盒本体之间的连接应牢固可靠，与保护导体的连接应符合下列规定：梯架、托盘和槽盒全长不大于30m时，不应少于2处与保护导体可靠连接；全长大于30m时，每隔20m～30m应增加一个连接点，起始端和终点端均应可靠接地。非镀锌梯架、托盘和槽盒本体之间连接板的两端应跨接保护联结导体，保护联结导体的截面积应符合设计要求。镀锌梯架、托盘和槽盒本体之间不跨接保护联结导体时，连接板每端不应少于2个有防松螺帽或防松垫圈的连接固定螺栓。GB 55024-2022《建筑电气与智能化通用规范》8.7.1条：电缆桥架本体之间的连接应牢固可靠，金属电缆桥架与保护导体的连接应符合下列规定：电缆桥架全长不大于30m时，不应少于2处与保护导体可靠连接；全长大于30m时，每隔20m～30m应增加一个连接点，起始端和终点端均应可靠接地。

　　According to Article 4.3.9 of GB 50169-2016 "Code for Construction and Acceptance of Grounding Devices in Electrical Equipment Installation Engineering", the grounding of metal cable trays should comply with the following regulations: bolts should be welded on the supports and hangers of cable trays, and copper stranded wires with copper noses pressed at both ends should be used for bridging the main body of cable trays. The minimum cross-sectional area of the bridging wire should not be less than 4mm ?. When there is no grounding wire between the galvanized support and hanger of the cable tray and the galvanized cable tray, there should be no less than 2 bolts with anti loosening nuts or anti loosening washers fixed at the connection between them. Article 11.1.1 of GB 50303-2015 "Code for Acceptance of Construction Quality of Electrical Engineering in Buildings": The connection between metal ladder frames, trays or trough boxes should be firm and reliable, and the connection with protective conductors should comply with the following regulations: when the total length of ladder frames, trays and trough boxes is not more than 30m, there should be no less than 2 reliable connections with protective conductors; When the total length is greater than 30m, a connection point should be added every 20m to 30m, and both the starting and ending ends should be reliably grounded. The two ends of the connecting plate between the non galvanized ladder frame, tray, and trough box body should be bridged with protective connecting conductors, and the cross-sectional area of the protective connecting conductors should meet the design requirements. When the galvanized ladder frame, tray, and trough box body do not cross connect the protective connecting conductor, there should be no less than 2 connection fixing bolts with anti loosening nuts or anti loosening washers at each end of the connecting plate. Article 8.7.1 of GB 55024-2022 General Code for Electrical and Intelligent Construction of Buildings: The connection between cable trays should be firm and reliable, and the connection between metal cable trays and protective conductors should comply with the following regulations: when the total length of the cable tray is not more than 30m, there should be no less than 2 reliable connections with the protective conductor; When the total length is greater than 30m, a connection point should be added every 20m to 30m, and both the starting and ending ends should be reliably grounded.

　　非镀锌电缆桥架本体之间连接板的两端应跨接保护联结导体，保护联结导体的截面面积应符合设计要求。

　　The two ends of the connecting plate between non galvanized cable trays should be bridged with protective connecting conductors, and the cross-sectional area of the protective connecting conductors should meet the design requirements.

　　镀锌电缆桥架本体之间不跨接保护联结导体时，连接板每端不应少于2个有防松螺帽或防松垫圈的连接固定螺栓。

　　When the galvanized cable tray body does not cross connect the protective connecting conductor, there should be no less than 2 connection fixing bolts with anti loosening nuts or anti loosening washers at each end of the connecting plate.

　　总结：镀锌桥架：连接板两端需用2个及以上防松螺帽或防松垫圈固定，可不跨接接地线，但需确保连接可靠。非镀锌桥架：连接板两端必须跨接保护联结导体，截面积不小于4mm?。特殊材质（如不锈钢、铝合金）：需采用专用接地螺栓孔跨接，确保导电连续性。

　　Summary: Galvanized cable tray: The two ends of the connecting plate need to be fixed with 2 or more anti loosening nuts or anti loosening washers. It is not necessary to cross the grounding wire, but the connection must be reliable. Non galvanized cable tray: The two ends of the connecting plate must be crossed to protect the connecting conductor, with a cross-sectional area of not less than 4mm ?. Special materials (such as stainless steel, aluminum alloy): Special grounding bolt holes need to be used for bridging to ensure conductivity continuity.

　　本文由  山东电缆桥架 友情奉献.更多有关的知识请点击  http://www.sdhangfeng.com/  真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.GB 50169-2016《电气装置安装工程 接地装置施工及验收规范》4.3.9条：金属电缆桥架的接地应符合下列规定：宜在电缆桥架的支吊架上焊接螺栓，和电缆桥架主体采用两端压接铜鼻子的铜绞线跨接，跨接线小截面积不应小于4mm?。电缆桥架的镀锌支吊架和镀锌电缆桥架之间无跨接地线时，其间的连接处应有不少于2个带有防松螺帽或防松垫圈的螺栓固定。GB 50303-2015《建筑电气工程施工质量验收规范》11.1.1条：金属梯架、托盘或槽盒本体之间的连接应牢固可靠，与保护导体的连接应符合下列规定：梯架、托盘和槽盒全长不大于30m时，不应少于2处与保护导体可靠连接；全长大于30m时，每隔20m～30m应增加一个连接点，起始端和终点端均应可靠接地。非镀锌梯架、托盘和槽盒本体之间连接板的两端应跨接保护联结导体，保护联结导体的截面积应符合设计要求。镀锌梯架、托盘和槽盒本体之间不跨接保护联结导体时，连接板每端不应少于2个有防松螺帽或防松垫圈的连接固定螺栓。GB 55024-2022《建筑电气与智能化通用规范》8.7.1条：电缆桥架本体之间的连接应牢固可靠，金属电缆桥架与保护导体的连接应符合下列规定：电缆桥架全长不大于30m时，不应少于2处与保护导体可靠连接；全长大于30m时，每隔20m～30m应增加一个连接点，起始端和终点端均应可靠接地。

　　This article is a friendly contribution from Shandong Cable Bridge For more related knowledge, please click http://www.sdhangfeng.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon. According to Article 4.3.9 of GB 50169-2016 "Code for Construction and Acceptance of Grounding Devices in Electrical Equipment Installation Engineering", the grounding of metal cable trays should comply with the following regulations: bolts should be welded on the supports and hangers of cable trays, and copper stranded wires with copper noses pressed at both ends should be used for bridging the main body of cable trays. The minimum cross-sectional area of the bridging wire should not be less than 4mm ?. When there is no grounding wire between the galvanized support and hanger of the cable tray and the galvanized cable tray, there should be no less than 2 bolts with anti loosening nuts or anti loosening washers fixed at the connection between them. Article 11.1.1 of GB 50303-2015 "Code for Acceptance of Construction Quality of Electrical Engineering in Buildings": The connection between metal ladder frames, trays or trough boxes should be firm and reliable, and the connection with protective conductors should comply with the following regulations: when the total length of ladder frames, trays and trough boxes is not more than 30m, there should be no less than 2 reliable connections with protective conductors; When the total length is greater than 30m, a connection point should be added every 20m to 30m, and both the starting and ending ends should be reliably grounded. The two ends of the connecting plate between the non galvanized ladder frame, tray, and trough box body should be bridged with protective connecting conductors, and the cross-sectional area of the protective connecting conductors should meet the design requirements. When the galvanized ladder frame, tray, and trough box body do not cross connect the protective connecting conductor, there should be no less than 2 connection fixing bolts with anti loosening nuts or anti loosening washers at each end of the connecting plate. Article 8.7.1 of GB 55024-2022 General Code for Electrical and Intelligent Construction of Buildings: The connection between cable trays should be firm and reliable, and the connection between metal cable trays and protective conductors should comply with the following regulations: when the total length of the cable tray is not more than 30m, there should be no less than 2 reliable connections with the protective conductor; When the total length is greater than 30m, a connection point should be added every 20m to 30m, and both the starting and ending ends should be reliably grounded.

　　非镀锌电缆桥架本体之间连接板的两端应跨接保护联结导体，保护联结导体的截面面积应符合设计要求。

　　The two ends of the connecting plate between non galvanized cable trays should be bridged with protective connecting conductors, and the cross-sectional area of the protective connecting conductors should meet the design requirements.

　　镀锌电缆桥架本体之间不跨接保护联结导体时，连接板每端不应少于2个有防松螺帽或防松垫圈的连接固定螺栓。

　　When the galvanized cable tray body does not cross connect the protective connecting conductor, there should be no less than 2 connection fixing bolts with anti loosening nuts or anti loosening washers at each end of the connecting plate.

　　总结：镀锌桥架：连接板两端需用2个及以上防松螺帽或防松垫圈固定，可不跨接接地线，但需确保连接可靠。非镀锌桥架：连接板两端必须跨接保护联结导体，截面积不小于4mm?。特殊材质（如不锈钢、铝合金）：需采用专用接地螺栓孔跨接，确保导电连续性。

　　Summary: Galvanized cable tray: The two ends of the connecting plate need to be fixed with 2 or more anti loosening nuts or anti loosening washers. It is not necessary to cross the grounding wire, but the connection must be reliable. Non galvanized cable tray: The two ends of the connecting plate must be crossed to protect the connecting conductor, with a cross-sectional area of not less than 4mm ?. Special materials (such as stainless steel, aluminum alloy): Special grounding bolt holes need to be used for bridging to ensure conductivity continuity.

　　本文由  山东电缆桥架 友情奉献.更多有关的知识请点击  http://www.sdhangfeng.com/  真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Shandong Cable Bridge For more related knowledge, please click http://www.sdhangfeng.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.