Want to ask about the location where to install heat detector in transformer yards..should it be installed on top of transformer or underneath ? What is the standard that specifies this one?
I was talking about fire detector to detector transformer fire. We use in some locations Heat detector ? Some use flame detector? Your comments please ..
Heat detectors are located in carefully chosen locations all around the transformer (different elevations) and on top of the transformer.
I haven't seen anyone providing detectors under the transformers.
You may refer to IEEE 979 Guide for Substation Fire Protection and NFPA 850 Recommended practice for Fire Protection in Electric Generating Stations...
I cant find an IEC for Fire protection of transformers though IEC 61936 Power Installations exceeding 1kV.
In some transformer yards, I have seen flame detectors installed and in some yards , heat detectors are installed. Why such a difference? I was told heat detectors are more suitable. Does it mean that flame detectors is a wrong engineering decision..