The symbols in this standard have been derived from IEC publication 617, NEN 5152 and company standards.
All symbols may be drawn in any position, the inscriptions shall remain however in the upright position. Exceptions are:
- Relays, contacts and switches shall be shown such that the mode of operation is from left to right or from bottom to top.
- Inscription on circuit and cables shall be written along the symbols and shall be read from left to right or from bottom to top
Contacts of eletrical operated devices shall be shown in the de-energized position. Switches shall be drawn in the off-position or not-activated (no pressure, flow, etc.)
The below standard gives the symbols for electrical devices. Use below standard for study purposes only. Please click here or the image for a printable pdf version, 40 pages.