CF-02-48- Class 1 Class 1 – The portion of the wiring system between the load side of the overcurrent device or power-limited supply and the connected equipment. Class 1 Power Limited Not more than 30 volts or...
CF-02-47- Article 725 (control circuits) Remote Control, Signaling & Power Limited Circuits Circuit between power supply/panel and equipment Limitations of power supply determine class i.e. Class 2 or Class 3 Check the power supply rating or equipment manual to...
CF-02-46- Article 300 (plenums and raceways) Spread of Fire or Products of combustion 300.21-Electrical installations in hollow spaces, vertical shafts, and ventilation or air-handling ducts shall be made so that the possible spread of fire or products of combustion...
CF-02-45- Article 250 (grounding) Grounding of the panel is Required Electrodes permitted for panel ground: A metal underground water pipe in direct contact with the earth for 10 feet Metal frame of building or structure Rod & pipe electrodes –Iron or steel- 8ft...
