amperes electronics
We Are A Trusted PA Solutions Provider Since 1999
Technical Info
This section provides some technical insights on items related to PA systems such as Amperes product selection guide, battery calculation for back up supply, terms used in sound and some other matters related to speaker and cablings.
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The summary of the information can be downloaded by clicking the picture.
Product Selection Guide
Product selection guideline assist you in choosing the right solution for your PA system needs. As systems' complexity may vary from one to another, this would help you to understand the what each type of system can offer, subjected to the size, legal requirements, budget and the purpose.
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Click to enter the Product Selection Guide page
Back-Up Battery Calculations
This information provides a guide on calculating the battery capacity required as back up supply to your PA system. Some installation may adheres strictly to the requirement of Code of Practice ( EN / BS / SS ), while some may follow the requirement of local authority.
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In reference to BS5839-1 : 2013​​
The battery capacity required is subjected to either the availability of these :​​
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a. Building with back up generator :
The minimum capacity to maintain the system operation for at least 6 hours, after which it is able to operate evacuation broadcast in all zones for at least 30 minutes.
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b. Building without back up generator :
The minimum capacity to maintain system operation for at least 24 hours, after which it is able to operate for at least 30 minutes.
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Click to enter the Technical Info : Back Up batteries
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