SafetyEngineer
Member
- Location
- Houston, TX USA
I am re-engineering an existing safety shower with electrical components on a mounting plate inside a Nema 4x junction box. The safety shower is classified for use in Class 1 Division 2 environments. I want to simplify the construction of the shower by converting the electrical components inside the junction box to a single pre-assemblied PCB. I have done a lot of research, however I cannot find any standards that specifically apply to Printed Circuit boards. Not even the components that I have looked at for the PCB mention Class 1 Div 2 classification.
Am I searching in vain? Can I only use a C1D2 enclosure, or do I need to be more creative in my interpretation of the NEC Codes for C1D2? The design is simple as the only components on the PCB will be 1 fuse, 1 DPDT Relay, 1 Solid State Flasher, 1 sliding switch and wire connections.
Am I searching in vain? Can I only use a C1D2 enclosure, or do I need to be more creative in my interpretation of the NEC Codes for C1D2? The design is simple as the only components on the PCB will be 1 fuse, 1 DPDT Relay, 1 Solid State Flasher, 1 sliding switch and wire connections.