ケース スタディ
街路照明のケース スタディ
LED 照明器具は、スイッチング動作から落雷までさまざまな原因によって発生するスパイク電圧に影響を受けやすく、あるドイツの都市にとっては、街路照明を LED 照明器具へアップグレードする上で頭の痛い課題でした。
The move to upgrade street lights to LED light fixtures was a painful headache for some German cities. When a German municipality planned to switch over 28,000 street lighting fixtures to LEDs, LED light fixtures were known to be susceptible to spike voltages caused by various causes, from switching operation to lightning strikes It was. Therefore, how to protect the LED lighting fixtures was the essence of this renovation plan. It was necessary to install a surge arrestor in the fuse box at the base of each street light pole.
課題
Replacing the fuse box takes time because wiring parts inside the box must be wired and cables for lighting fixtures must be connected. The municipality consulted surge arrestor maker in search of products that can be installed quickly and reliably, looking for a product that suits the purpose. However, parts sold by manufacturers were not designed to withstand the harsh environments inside the lighting pole.
In addition, the surge arresters that the municipality is seeking needed to be able to install quickly and efficiently. In other words, the installation location was close to the ground and had to be outside the lighting fixtures. In order to cope with these problems, the municipalities decided to borrow the power of TE Connectivity (TE) with more than 10 years delivery experience on other parts. The task imposed on TE was to develop a solution that could easily install surge arresters and meets local government requirements.
28000
LED 照明器具に切り換えられた街路照明
40 万人
LED 照明器具への切り替えによる恩恵を受ける住民の数
4 kV
LED 電源で対応可能な最大スパイク電圧
ソリューション
TE Connectivity (TE) engineers developed an innovative concept combining protection, installation and maintenance, based on the premise that surge arresters are installed inside the fuse box.
A specially designed fuse box to accommodate the harsh conditions inside the street lighting pole enables the following:
- Connection between cable network and lighting equipment
- Electrically protect equipment with fuse
- Easy and reliable network cable attachment possible even in narrow places such as inside the lighting pole
Cooperation between TE and German municipalities continued further. We have repeatedly studied to further simplify the installation by installing a dedicated plug by preliminarily wiring the lighting equipment and by spare wiring the fuse box and attaching the receptacle.
街路照明用途では、効率的かつ高性能なネットワークを維持するうえで、サージ プロテクションと信頼性が重要になります。
成果
TE has offered products that accurately respond to customer needs. This solution simplifies installation of the fuse box with surge arresters and drastically reduces the installation time compared to standard products that municipalities had purchased so far.
With more than 60 years experience in materials science and design, TE develops innovative custom solutions that meet customer's broad requirements and meet customer specific needs.
