Lamp lines blue and red wires twisted gum line line line

RVS twisted uses:

1. automatic fire alarm system for fire detector lines.

2. suitable for household appliances, electric tools, instrumentation and power lines. Double white core used for direct fixture lead; red and blue cores used in fire fighting, alarm and so on; red and white cores for radio, telephone line red black core broadcasting for the line.

3. for connecting power amplifiers and audio equipment, broadcast systems transmission amplifiers amplify the audio signal.