What items do weak current 13 refer to?

What items do weak current 13 refer to?

Fire fighting system: fire fighting linkage, fire detection, broadcasting, telephone, lighting (emergency), power supply and master control.

Security system: intrusion, video, entrance, patrol, parking.

Cable TV: Cable system, satellite TV.

Broadcasting system: sound reinforcement, conference and remote transmission.

Equipment monitoring: refrigeration, heat exchange, air volume control, water supply and drainage pump, indoor lighting control, outdoor lighting, emergency power generation, elevator, machine room and power supply control.

Network system: local area network, system construction and network security.

Telephone system: program-controlled switching, digital switching, conference transmission and remote (teleconference).

Echo system: clock, system and display.

Integrated wiring: system configuration.

Electromagnetic compatibility: power interference and protection.

Boiler thermal engineering: detection and control.

Lightning protection system; ：

The community can only:

Organized in: JGJT 16-2008.