Unfamiliar electrical schematic symobol

Question

I've been working with electrical schematics for quite some time, but I recently stumbled upon symbols representing loads that I'm not familiar with. Are these new additions or have they been around, and I've somehow missed them? Any insights would be greatly appreciated. Thanks!

gkenyon · Accepted Answer

I've seen this (and one with two lines) used to represent a power converter with isolation (separation) - so this could represent protective separation. 
 However, these usages are not in one of the official libraries other than for transducers/signal converters:

chrisbryant · Answer

Looks like a TPN isolator to me, but rotated 90 degrees from it's normal orientation.

chrisbryant · Answer

Not saying you are not correct, but I suspect the OPs drawing was not a schematic wiring diagram, but a stage 3 or 4 design LV schematic aligned with BSRIA BG6 levels of detail. Every LV schematic i have seen of this type has included the 'layout' symbol for the connection devices at the end of a line - e.g. see the distribution boards in the OPs picture - hence why i suspect the symbol has been copied from a layout, where it was showing an isolator on a wall running top-to-botom on the page and not rotated

burn · Answer

It's a TP isolator. The Architectural ACAD symbol. If you zoom in on the schematic you can see the handle at the top ; the three diagonal bars donate three phases 
 regards burn

Unfamiliar electrical schematic symobol

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