Humax NA-3712 manual GB4

Important Safeguards

•Operate your product only from the type of power source indicated on the marking label. If you are not sure of the type of power supplied to your home, consult your appliance dealer or local power company.

•Use only a grounded or polarized outlet. For your safety, this product is equipped with a polarized alternating current line plug having one blade wider than the other. This plug will fit into the power outlet only one way. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug still does not fit, contact your electrician to replace your outlet.

•Protect the power cord. Power supply cords should be routed so that they won’t be walked on or pinched by objects placed on or against them. Pay particular attention to cords at plugs, convenience receptacles and the point where they exit from the unit.

•Unplug the product from the wall outlet and disconnect the antenna or cable system during a lightning storm or when left unattended and unused for long periods of time.

This will prevent damage to the unit due to lightening and power-line surges.

•Avoid overhead power lines. An outside antenna system should not be placed in the vicinity

of overhead power lines or other electric light or power circuits or where it can fall into such power lines or circuits. When installing an outside antenna system, be extremely careful to keep from touching the power lines or circuits. Contact with such lines can be fatal.

•Do not overload the wall outlet or extension cords. Overloading can result in fire or electric shock.

•Do not insert anything through the openings in the unit, where they can touch dangerous voltage points or damage parts. Never spill liquid of any kind on the product.

•Ground outdoor antennas. If an outside antenna is connected to the product, be sure the antenna is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA No.70-1984, provides information about proper 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.

EXAMPLE OF
ANTENNA GROUNDING	ANTENNA
	LEAD IN WIRE
GROUND CLAMP	ANTENNA
	DISCHARGE UNIT
ELECTRIC	(NEC SECTION 810-20)
SERVICE	GROUNDING
EQUIPMENT
	CONDUCTORS
	(NEC SECTION 810-21)
	GROUND CLAMPS
	POWER SERVICE GROUNDING
	ELECTRODE SYSTEM
NEC NATIONAL ELECTRICAL CODE	(NEC ART 250, PART H)

GB4