waters' log

Still waters run deep.

2012-06-20

全城停电

Ames的人越来越多,公寓楼和豪斯也越盖越远,可发电厂的容量一直没变,夏天家家都用空调时就会出问题,负载太大了。去年七月份最热最闷的时候是家家都装primer timer(避免每家都同时运行空凋),外加把学校的几个电老虎(cluster computer等设备)关闭掉。

今年还没进入七月份呢,问题就出来了。昨天下午正在办公室用电脑,刷的一下电脑黑屏了,日光灯也灭了,出去看走廊上应急灯倒是开了。还有人被关在了电梯里,大家花了老大劲才把那人给弄出来。路上交通灯也没有,不过大家倒是很有次序的按stop sign开车。警察也很快出来指挥交通了。大概过了一个多钟头,大部分地方就又来电了。

Posted on city of Ames website http://www.cityofames.org/:

Tree Limb Causes Citywide Electric Outage
Posted Date: 6/19/2012 3:30 PM

AMES, Iowa – An electric outage reported just before 3 p.m. today affected the entire city for approximately 10 minutes before power was restored to parts of the city. The cause of the outage was large tree limb that touched two phases of the 161 kV transmission line between the Stange Road substation and the Boone Junction substation (near Boone, Iowa).

The majority of city was restored by 4 p.m. By 4:15 p.m., the outage was isolated to two feeder lines from the Dayton Avenue substation. The outage originally included the Ames Power Plant and the Iowa State University Power Plant.

Assistant Electric Director Brian Trower said the tree limb tripped the transmission line so no power was flowing. “When that tripped, our local generation at the Ames Power Plant did not match the load we were trying to serve, which creates a situation called under frequency,” Trower said. Because there was more demand for electricity than the Ames Power Plant could produce, “the entire city tripped.”

Once the tree limb was cleared from the transmission line, the line was re-energized and electricity was restored throughout the city. “Basically, we started over to re-establish the system,” Trower said.

An outage of this size is unusual, but the situation reinforces the importance of Ames Electric Services’ pursuit of another electric tie-in to the south, Trower said. “This is a compelling example of why additional transmission is needed.”

2012-06-19

俩月来首次(最轻)体重降到128磅一下,于是买了很多的衣服,还去小四川吃了一顿。

2012-06-12

守法

上周日气温飙升到36度,很多人去了这里新修的室外aquatic center玩。一去那里,发现人满为患,停车场压根就没有位置了。在那里足足转了一刻钟才找到泊车位,有些人不耐烦了就直接停在草地上。待进场玩了一小会,水上乐园的大喇叭响了:有谁谁把车停在草地上的,赶快挪开,否则开罚单了啊!

还好一开始没敢挺草地上。

2012-06-04

birthday party

昨天带小猪去了他一个同班同学的生日爬梯,发现给小朋友们办爬梯,消耗的不仅仅是钱。吃的喝的还有场地就不用说了,关键是怎么娱乐十几个小朋友,要花费很多心思。

同学家长在Reiman Garden租了地方,准备了五种不同的游戏,分别由五位大人在不同的大桌子边负责,有face painting, making bouncing moon balls, making a rocket by color sand and bottle, making a shoot gun with marshmallow bullets, how to fly a plane/rocket,还准备了很多straw & connectors可以用来自己做东西;等小朋友们 把一圈游戏玩完,再集合起来拍照、画小寿星的漫画、讲故事和教大家唱歌。最后是小朋友自己动手做冰淇淋、唱生日歌和吃蛋糕。虽然只是两个钟头的爬梯,内容也很丰富,小孩们都挺开心的。

结束回家的时候我暗想,好在小猪的生日学校关门,同学放假,想办爬也没的办;否则我想破脑袋也想不出这样的爬梯。