The following changes in requirements to the Standard for Toy Transformers, UL 697, are being proposed:
1. Addition of an exception for ferrite core to coil spacing for insulation
2. Revision to 17.1 to apply regardless of input supply means
3. Revision to Table 31.1 to address temperature rises in Class 155 insulation systems
4. Revision to 52.1 to describe the permanent marking method