Location: The station is situated close to the town of Balfour in Mpumalanga.
History: The first of Grootvlei's six units was commissioned in 1969. Three of Grootvlei's units were mothballed in 1989 and the rest in 1990. The station is 32 years old this year.
General: Grootvlei's units 5 and 6 were the first test facilities for dry cooling in South Africa. Unit 6 has an indirect dry cooling system. The buildings were completed in December 2006.
A TOA VX-2000 emergency voice evacuation system was chosen by the client and the consultants as the preferred system for emergency situations should they arise.
The TOA VX-2000 Integrated Voice Evacuation System (covered by a 5 Year Warranty), originally built to comply with EN60849:2005 (adopted by SA as SANS60849) is ideal for this type of application where there are multiple zones and each floor is to be treated as an independent zone which is capable of having its own dedicated microphone for the Fire Marshall controlling that floor.
It also provides for Multiple Zone and Fireman's microphones on the system, each with their own priority status as well as phased evacuation as multiple messages and or tones can be broadcast in different zones / areas simultaneously.
The entire system is self-monitored every 100 seconds with fault indications registering on the rack equipment as well as the control microphones. Logs are automatically generated (announcements, system faults, inputs, automatic messages and alarm tones, faulty lines, etc).
It is also possible to utilize the system for BGM (Background Music) as each zone is able to have its own music source and volume levels or the same source can be routed to specific zones, a group of zones or all zones). White noise too, can be integrated with the system.
VM-2240 PA/Evac system
TOA VX-2000 Voice Evacuation System
TOA VM-2240 Voice Evacuation System
CS-64 Projection Speaker for outdoor use
TP-M15E Explosion Proof Horn Speaker
DH-12B Straight Horn Speaker
TOA PC-1867FC Firedome Ceiling Mount speakers
Standards to which the equipment complies:
TOA's NX-100 Network Audio adapter