I am using Aspirating Smoke Detectors in a factory. Do we need Third Party Certification for Pipes of Aspirating Smoke Detectors?
A new install??
And what do you mean by:: Certification for Pipes ??? DO they meet NFPA, do they need to be inspected?? Or ?
For both new and existing system and they meet NFPA. As you know, there are needed PVC, copper etc pipe for suctioning the sampling air. Do we need listed pipe as fire detection system is needed listed cable.
Are you installing the system or a fire alarm company??
If you use NFPA 72, follow it
Without looking, I do not think the piping has to be listed. It is just a conduit for the air.
From one maker
PipesThe pipes used in the pipe network can be made of various materials including copper, PVC, ABS, UPVC and CPVC. The internal pipe diameter used with the FAAST system can range from 0.591" to 0.827" (15 to 21 mm). Ideal dimensions vary depending on system design requirements as well as local codes and regulations. The FAAST detector has a built in tiered insertion point for the pipes which allows for an outside tube diameter of either 1.050" or 25 mm to accommodate U.S. Customary System and Metric System Sized Pipes.Frequently Asked Question – Can we use metal pipe instead of plastic with FAAST?Yes. It is acceptable to use either steel or copper pipe under the following conditions:Fittings are used to connect sections of pipe together on longer network runs and are made from the same material as the pipe. There are several types of fittings to allow for various bends, straight runs, branches and connections. Common fittings are described in the following sections.Couplings and UnionsCouplings and unions are used to connect two sections of pipe in a straight line. A coupling is used when the section is not intended to be taken apart.A union offers the ability to screw the two pipe sections together for future access, such as areas of the pipe network that have to be periodically disassembled for maintenance and cleaning. Unions can also be used to orient sample ports correctly ina specific section of the pipe network, such as over returnair grilles (for more information on high air flow and duct applications, see the white paper at systemsensor.com/faast). Figure 1 shows a typical union and coupling.Figure 1: Couplings and unions.ElbowsElbows are used to change the direction of the pipe network. Both 45 degree and 90 degree elbows may be used. Both elbow fittings are shown in figure 2.User Guide: Aspirating Smoke Detector Pipe Installation Fittings • The pipe size used must be capable of fitting to a plastic pipe upon interfacing with the FAAST device. The inner diameter must be within the approved range of.591" - .827" ( 15.00 - 21.00 mm ). • The material must be approved by the local authority having jurisdiction and must also be approved by the insurance underwriter
Third party certification related to it
Point detectors have a certain limitation in many monitor area, and standard smoke detectors are not qualified when consider the challenging environment condition and interference factors. So these applications need to use special fire detection pythontechnology, for example, aspirating smoke detectors (ASD). Driven by the new European standard EN 54-20, ASD achieved a new level in detection speed and reliability.
Depending on how you are connected to this, third party inspection can always be done.
From NFPA 72
Pipe network materials, sizing, and installation shall be in accordance with the manufacturer’s published requirements and suitable for use in the environment in which they are installed.
Where used, capillary tubing shall be sized and affixed in accordance with the manufacturer’s published instructions and computer-based design calculations.
From my experience, the piping comes as a pre-engineered package with the aspirating detection and installed together as a system. It should be that way. The piping does not need to be listed or is specifically inspected or tested. The entire system is tested at factory and at site. So far I have never heard of people buying bits and pieces separately and install. I don't think that would go well with the local fire authority or insurance when later they conduct a compliance inspection.
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