MEANING OF THE PROTECTION SYMBOLS

(as per UNE 20 - 3248 REGULATION)

	Protected against dust (without damaging sediments).
	Fully protected against dust.
	Protected against raining water upto 60° in vertical.
	Protected against water coming in all directions.
	Protected against electric discharge with double insulation.

RANGES

MAXIMUM RANGES IN METERS DEPENDING ON AREAS, FOR AUDIBLE WARNINGS
DECIBELS at 1 m of transceiver	115	110	105	100	95	90	85	80	75
Quiet areas without noise, wind and obstacles (sea, country).	300	250	200	150	100	60	50	40	30
Areas with noise of ~ 70 dB (at city street).	100	80	65	45	30	18	15	12	8
Crowded areas and high noise level (stadiums).	30	25	20	15	10	7	5	4	3

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Especialistas en Registro Dominios y Alojamiento Web de calidad. Alta Buscadores y Diseño Web en Barcelona