There various codes that defines issues related to safety and better way of doing things in the field of electronics.
These codes are followed by various industries while designing to implementation of any electronics. Many of the scientific organisation and committees develop them for each country or region. So,if your in India, so codes pertaining to India will be better while designing or implementing.
Im this post, you will find some info about various codes. So, this post will be updated for awhile.

1.)) NEC CODES::