Do I need an electrical permit when modifying existing wiring?
Any time you alter, repair, add, relocate, or modify existing electrical wiring, you will need an electrical permit. Refer to section 93.0201 for a list of exceptions.
Yes, if the installation involves a (1) communication circuit or class 2 signaling circuit over 30 volts or under 30 volts but more than 100 va, (2) amplifier circuits not using class 2 or 3 wiring, or (3) any circuit operating over 15 volts that control, generate, transmit, transform, or utilize
Fees for plan check are calculated based on items to be reviewed and permitted. You can find the breakdown of these item in sections 93.0214 through 93.0224.
How can I tell if a product is approved to be used in the City of Los Angeles?
A product (or equipment) is considered approved if it bares either the approval label of the City of Los Angeles Electrical Test Lab, or listing or certification label, symbol or other identifying mark of a recognized testing agency.