HP pavilion pc h2m40aaraba Manuale Utente

 Use of controls, adjustments or performance

procedures other than those specified in the HP Pavilion PC
User’s Guide may result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not try to
open the enclosure of the CD-ROM or DVD.

If an outside antenna or cable system is connected to the
product, be sure the antenna or cable system is electrically
grounded so as to provide some protection against voltage
surges and built-up static charges. Article 810 of the
National Electrical Code, ANSI/NFPA 70, provides
information with regard to proper electrical grounding of the
mast and supporting structure, grounding of the lead-in wire
to an antenna-discharge unit, size of grounding conductors,
location of antenna-discharge unit, connection to grounding
electrodes, and requirements for the grounding electrode.

2

1

1

2

3

4

5

6

7

3

4

5

6

7

Electric Service Equipment

Ground Clamps

Ground Clamp

Grounding Conductors (NEC Section 810-21) 

Antenna Discharge Unit  (NEC Section 810-20) 

Antenna Lead in Wire

Power Service Grounding Electrode System
(NEC Art 250, Part H)