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  1. UL508A panel with UL864

    We are looking at building a panel for a client. They asked for a UL508A label on the panel. They will be supplying components we are unfamiliar with. They are all UL864 certified for fire alarm signals. My question is can we put these in our panel and UL508A the panel? We cannot certify the panel for UL864 i understand that. If we fallow guidelines and install these UL864 alarm components per manufacturer instructions can we call it a UL508A panel? 
  2. Hi All, I am pretty new at electrical design for PLC control panels. We are a UL508A shop, so this is the code I refer to most. Something struck me as odd when I was trying to size wire for this control panel. UL508A 28.3.1 says this: The required size of the field wiring terminal shall not be less than 14 AWG (2.1 mm2) and shall be determined by: a) Calculating the required ampacity per 28.3.2 – 28.3.6; and b) Determining the minimum field wiring conductor size from Table 28.1 having a corresponding ampacity that is equal to or greater than the required ampacity from (a). How can the minimum wire size be #14 AWG? We use #16 AWG for wire to the PLC modules? Are we breaking code or is there something I am missing? Also, understanding code books can be difficult. Is there a website or place I can go to get a plain English translation? I feel like I will read a sentence over and over again to try to understand what they are saying, and feel like there's is a much easier way to say it than the way it is written. For example, "28.3.1 b" ……...what is it really saying?