315. If an outside antenna or cable system is connected tothe product, be sure the antenna or cable system isgrounded so as to provide some protection againstvoltage surges and built-up static charges. Section 810of the National Electrical Code, ANSI/NFPA No. 70-1984(Section 54 of Canadian Electrical Code, Part 1) providesinformation with respect to proper grounding of themast and supporting structure, grounding of the lead-in wire to an antenna-discharge unit, size of groundingconductors, location of antenna-discharge unit,connection to grounding electrodes, and requirementsfor the grounding electrode. See following example.1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6. Clean only with dry cloth.7. Do not block any ventilation openings.Install in accordance with the manufacturer’sinstructions.8. Do not install near any heat sources such asradiators, heat registers, stoves, or otherapparatus (including amplifiers) that produceheat.9. Do not defeat the safety purpose of thepolarized or grounding-type plug. A polarizedplug has two blades with one wider than theother. A grounding type plug has two bladesand a third grounding prong. The wide bladeor the third prong is provided for your safety. Ifthe provided plug does not fit into your outlet,consult an electrician for replacement of theobsolete outlet.10. Protect the power cord from being walked onor pinched particularly at plugs, conveniencereceptacles, and the point where they exit fromthe apparatus.11. Only use attachments/accessories specified bythe manufacturer.12. Use only with the cart, stand, tripod,bracket, or table specified by themanufacturer, or sold with theapparatus. When a cart is used,use caution when moving the cart/apparatus combination to avoid injury fromtip-over.13. Unplug this apparatus during lightning stormsor when unused for long periods of time.14. Refer all servicing to qualified service personnel.Servicing is required when the apparatus hasbeen damaged in any way, such as power-supply cord or plug is damaged, liquid hasbeen spilled or objects have fallen into theapparatus, the apparatus has been exposed torain or moisture, does not operate normally, orhas been dropped.ANTENNALEAD INWIREGROUND CLAMPGROUNDING CONDUCTORS(NEC SECTION 810-21)GROUND CLAMPSPOWER SERVICE GROUNDINGELECTRODE SYSTEM(NEC ART 250, PART H)ELECTRIC SERVICEEQUIPMENTANTENNADISCHARGE UNIT(NEC SECTION 810-20)IMPORTANT SAFETY INSTRUCTIONSRead before operating equipment