Скачать с ютуб 02/21/2024 Bell Test (EST3) в хорошем качестве

02/21/2024 Bell Test (EST3)

First bell test video of 2024! It's been a while since I uploaded one, but lately things haven't been worthy of filming or I haven't been around when a bell test was conducted. Anyway, here's a mildly interesting system. This was taken at a private school. There are two parts to this building. The original portion of the building was built in 1930 and contained 3 floors (plus a mechanical basement). In 1995, the school was added onto, which is when the EST3 went in. I'm not sure what the original alarms in the old portion of the building were, but sometime between the original system and the EST3 going in, a Simplex 4208 was put in. As you can see, the pull stations in the old portion of the building are 4251-20s (plus a 270A-SPO). The pulls on an entire floor are wired to one circuit and that circuit is hooked up to a module on the EST3. In the newer portion of the building, the pulls are still conventional, but are individually hooked up to monitoring modules, so each pull has its own address. The smokes in the newer portion of the building are the pre-SIGA devices (manufactured by System Sensor). In recent years, (including this past year), upgrades have been done to the system: the vast majority of the sensors (minus the non-restorable heats, and two smokes at the top of the stairs) in the old portion of the building have been upgraded to SIGA devices, and the first floor sensors in the new portion of the building have also been upgraded to SIGA devices. The goal is to replace all of the old devices with SIGA devices, as the old devices are long since discontinued and not supported. Hopefully more devices will be replaced this year. Meanwhile, as you can see, the signals are Wheelock MT-24-LSMs and the remote strobes are Wheelock LSM-24s. There are also a few outdoor signals not seen. The signals were installed when the 1995 portion of the building was built and signal coverage was extended into the old portion of the building. In this video, I check the first floor of the old portion of the building as well as the basement level of the new portion of the building. Enjoy the noise!