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CCX-NHMC耐火母线槽系列 CCX-NHMC耐火母线槽系列

CCX-NHMC耐火母线槽系列
CCX-NHMC Series Fire-proof Busbar Trunking CCX-NHMC耐火母线槽系列
CCX-NHMC Series Fire-proof Busbar Trunking

■ 选用性能优良的绝缘耐火材料 ■ Choose the insulation fire-proof material with excellent 介电强度≥13kV/mm、体积电阻率>20MΩ.cm、抗 This ceramics have an excellent high-temperature
performance
CCX-NHMC系列母线耐火绝缘介质主要采 弯强度≥250MPa. resistance. When the temperature reaches 900℃, the
The fire-proof insulation medium of CCX-NHMC series insulation resistance >10MΩ.cm. Because of the ceramics’
用绝缘支撑选用氧化铝高温陶瓷件，可耐高温达 busbar mainly adopt alumina pyroceramic insulation supporter, 该陶瓷耐温效果尤为显著，在温度达到900℃
which could withstand 1000℃. The copper insulation conductor stability, the insulation material doesn’t have the ageing
1000℃。母线铜导体绝缘采用聚酰亚氨和耐高温粉 时，测得绝缘电阻>10MΩ.cm。由于陶瓷的稳定性 problem, which will extend the busbar’s service life.
winded with polyimide and high-temperature resistant mica-
云母带混合缠绕。（聚酰亚氨俗称黄金带，是电工 tape. (Polyimide is called golden tape, which is the most 好，不存在绝缘材料的老化问题，从而有效延长了 Environmental-friendly product
行业最先进的绝缘材料，具有较好的耐高温和介电 advanced insulation material in electrics industry. It has good 母线的使用寿命。 Under the fire environment, the busbar trunking won’
high-temperature resistance and dielectric capacity. The t discharge any toxic gas, but also without afterburning. It’s a
性能，介电强度≥22000V，在高温中无有毒气体释 dielectric strength ≥22000V. There is no toxic gas discharge 环保产品 new generation of environmental-friendly electric product.
出；粉云母带耐火温度高达960-1000℃/1.5小时， within the high-temperature environment. The mica-tape 母线槽在火灾情况下，无任何有毒气体放出， ■ Main technical parameters
could withstand the temperature of 960-1000℃/1.5h, take IEC ● All the performance of CCX-NHMC series busbar in
参照IEC371-3-8、GBI2666.6耐火特性试验达到A
371-3-8 and GBI 2666.6 for reference. Its fire-proof capacity 亦不会形成二次燃烧，属新一代环保型电器产品。 accord with IEC371-3-8, GBI2666.6 and GB/T537-2005.
类要求）。 reaches A class. ) ● The power frequency withstand voltage of the busbar
The thermal protective layer adopts different measures ■ 主要技术参数
根据耐火母线耐火极限的不同，其隔热层采取 trunking is 2500V. There is no breakdown and flashover within
according to the busbar’s different fire-proof limitation. If the ● CCX-NHMC系列母线各项性能均符合 1 min.
的措施亦不同，若母线需作长时间通电运行，则其 busbar take a long-term current-carrying operation, the thermal
IEC371-3-8、GBI2666.6、GB/T537-2005。 ● Because of the busbar’s high-strength ceramics
隔热层一般直接利用空气隔热，以免影响母线运行 protective layer will adopt air insulation, to avoid the impact insulation material, it could withstand stronger electro-dynamic
on the mica’s heat discharge, see chart 1. When the busbar ● 母线槽能承受2500V工频耐压，历时1min无
过程中热量的散发，见（图1），当母线槽平时不 trunking don’t carry current and just work as emergency power stress and thermal stress.
击穿和闪络现象。 ● If the busbar carry rated current for a long-time, its
通电仅作应急电源使用时，其耐热极限要求较高， supply, there is a higher requirement on the fire-proof limitation.
The thermal protective layer will use silicate cotton filler, see ● 母线槽由于采用高强度陶瓷作为隔相材料使 current-carrying part’s temperature rise won’t exceed the
隔热层需用硅棉填充见图（2），本耐火母线所选 values in table 1.
chart 2. The silicate cotton material in this fire-proof busbar 其能承受较强的电动应力和热应力。
用的硅棉材料符合GB3003-82《普通硅酸铝耐火纤 in accord with GB3003-82 < common aluminum silicate fire-
proof fibro felt> standard, its AL2O3+SiO2 content reaches ● 母线槽在长期通以额定电流时，其导电部位
维毡》标准，其AL2O3+SiO2含量达96%，持续使
96%, continuous operation temperature is 1050℃, the highest 的温升不超过表中（1）所列的数值。
用温度为1050℃，最高使用温度达1250℃。 operation temperature is 1250℃.
母线槽外壳采用冷拉成型薄钢型材混合组成。 The shell of busbar trunking adopts cold-draw forming Table(1)
thin steel. The side plates on the two sides adopt our company
其两边侧板为我公司独创的双层中空结构，通过密 original double-layer insulation structure. Effectively protect the 导电部位名称 最大允许温升 (K)
Conductive parts name Maximum acceptable temperature rise (K)
闭中空有效阻止高温气体或明火直接进入母线内 high-temperature gas and flame from entering the busbar via
the compact insulation structure. The surface of busbar adopts 母线连接端子
部。母线外壳表面为镀锌加喷防火涂料（遇火时， 60
zincing plus fire-proof spraying. (When it’s on fire, the painting Busbar connect terminal
涂料能迅速以几何速度在母线表面膨胀形成致密的 could expand into compact carbonized thermal protective layer
母线槽外壳
in geometry-velocity, to obdurate all the crack of the busbar, 30
炭化隔热层，密闭母线外壳所有缝隙，防止高温直 Shell of busbar trunking
prevent high temperature enter the busbar directly.)
接进入母线内部）。 In order to meet the fire-proof requirement, the phase

为了满足耐火要求，其中隔相块及接头隔块 insulation block and connector block are made of high-
temperature ceramics, which AI203 content is higher than 95%.
均采用耐高温陶瓷材料制成，该陶瓷Al2O3含量在 Its normal dielectric capacity and mechanism are: dielectric

95％以上，在常态下其介电性能、机械性能如下： strength ≥13kV/mm, volume resistivity >20MΩ.cm, flexural
strength ≥25MPa.

15 BUSWAY SERIES BUSWAY SERIES 16