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夏天能否在公交车上 装遮阳窗帘
2017-08-15 04:46:13 中国青年网
“夏天站在车上一动不动,烈日爆晒,骄阳似火,公交车上全没有遮阳窗帘,多难受呀!”有市民通过成都市网络理政平台建议,能不能在公交车上安装遮阳窗帘,以增加舒适度?
针对此问题,成都公交集团有限公司回应,加装窗帘,目的是为了遮挡紫外线、防止被太阳晒黑,成都早在多年前就车窗玻璃防紫外线性能进行了专门的技术研究和改进,采用了比遮阳窗帘更加有效、美观的方法处理此问题,即在采购新车的时候采用新型的具有防紫外线和隔热性能的车窗玻璃,完全能防止紫外线射入车厢。
若加装窗帘会带来不便和安全隐患。根据GB7258《机动车运行安全技术条件》标准关于“前风窗玻璃及风窗以外玻璃的可见光透射比应大于等于70%,所有车窗玻璃不得张贴镜面反光遮阳膜”的要求,目前公交集团公司的全部公交车均采用具有防紫外线和隔热性能的车窗玻璃;各种型号公交车的侧窗都按照标准要求设置有活动车窗,供乘客逃生使用。若加装窗帘反而会影响其通透度,在紧急情况下影响侧窗应急出口的通过效率,不利于快速击碎玻璃、不利于乘客逃生;若车内发生特殊情况,外面无法得知,影响及时处置。同时,在行驶过程中窗帘可能会从活动车窗飘出,遮挡驾驶员视线,对车外的行人和车辆造成安全隐患。
另外,国家相关标准对汽车内饰件的阻燃性能也提出了要求,特别对客车内饰件的燃烧速度作了进一步明确,要求燃烧速度应小于或等于70毫米/分钟。然而,目前能可靠地满足这一要求的窗帘材料还有待开发和验证。此外,车辆加装窗帘容易形成二次污染,传播细菌和病毒,影响乘客健康。成都晚报记者 李晨 实习生 张巧
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