Can you review the relevant codes regarding installation of insuite signaling appliances?
The British Columbia Building Code (BCBC) reflects a good deal of the Canadian Building Code with a few “twists” here and there (usually for the better). In Vancouver you also have to deal with the Vancouver Building By-Law (VBBL). Then there’s CAN/ULC-S524 (The Installation Standard for Fire Alarm Systems). Let’s examine some of these codes. Section 3.3.1.5 of CAN/ULC-S524 states that “opens” or “ground faults” on one circuit shall not interfere with the operation of other circuits in the same system. Clearly, the intent of the authors of this section was to preserve the functionality of the system as a whole even if one device (or circuit) was compromised by either of the forgoing fault conditions. This becomes more complicated when it involves signaling appliances located in a suite. The BCBC has relaxed the requirement to employ isolator modules on signal circuits serving residential suites as long as a Class “A” loop is employed and the circuit servicing the suites is separate fro
