(i)

Insanitary condition refer to the situation/circumstances that might contaminate with dirt/filth/unclean/unhealthy environment that can lead to injury/health problems/spread diseases.

OR

Insanitary condition refer to a condition which is dirty/dangerous for one's health due to lack of toilet facilities/drains/water making it difficult to keep things clean.

(ii)

Ways of preventing fire from electrical sources

1. Use only licensed electricians for installation/repair
2. Do a thorough check on electrical wiring before cutting through the wall/floor/ceiling
3. Inspect power tools regularly
4. Check insulated tools for damage before using them
5. Never modify electrical plugs
6. Keep extension cords in a safe place/in where they would not be stepped on/driven over
7. Ensure that all electrical components are kept dry
8. Avoid overloading sockets
9. Keep flammable materials away