Question: What exactly is a block diagram and are they mandatory in all strata buildings?
Answer: They are mandatory where the Australian standard or building code that is applicable to your building requires a block diagram.
Block diagrams are essentially a map showing how that particular fire system works and where the key equipment is located. Generally, you’ll find them on fire detection and alarm systems, hydrant systems, sprinkler systems and sometimes occupant warning. They are there (mostly) for the Fire Brigade. Putting yourself in the fire-fighter’s shoes, they’re running into a building they’ve never been to, getting ready to save people’s lives by putting the fire out & they’re faced with a really complex building they have to learn under very stressful conditions. The Block plan helps them understand that complex system at a quick glance.
Are they mandatory in all strata buildings? No, but they are mandatory where the Australian standard or building code applicable to your building requires a block diagram. Because every building is different, it’s a very contextual answer. If your building’s Annual Fire Safety Statement (AFSS) says it requires a hydrant system compliant to AS2419.1-2017; it definitely requires a block diagram. If it doesn’t specify that code, or requires an earlier version, perhaps it does not. Your fire contractor (if competent) should be able to look up the code listed on the AFSS and provide you with the exact clause referring to block plans. Every building may be different, but reading the specific code is not.
If you’re not sure about your specific property’s requirements, send a copy of your AFSS to the author and we’ll happily help you find out.
This post appears in the June 2022 edition of The NSW Strata Magazine.
Rob Broadhead
2020 Fire Protection
E: rob.broadhead@2020fire.com.au
P: 1300 340 210
Leave a Reply