Advantages: Non-electronic type, long life. The quality of protection will not change after lightning strikes. Model with different protection radius for selection. Fully active triggered lightning system. When there is lightning, self-activation will be acted. Elegant appearance. No need maintenance. LY30Z series of pre-discharge lightning rod uses high-quality steel materials; each model has different characteristics corresponding to different protection range.Pet rochemical  warehouse,gasoline  st at ion,  archit ect ure  building,  beacon station,communication base station, meteorological station, military base, radar machine room, bank building, etc.

Cat	Protectionheight Cat. l D-20M	Protectionradius (m)	Protectionheight Cat. ll D-50M	Protectionradius (m)	Protectionheight Cat. lll D-60M	Protectionradius (m)
Height of the tip of LY-30-Z-300 lightning rod to the ground Contrast list of protection radius (m)	5	42	42	57	5	64
	6	42	42	58	8	67
	7	43	43	59	10	68
	8	43	43	60	15	72
	10	43	43	63	20	75
	15	44	44	65	45	83
	20	45	45	70	60	85

Note: The above data is the test result when the height of the lightning rod H = 5 meters. Calculation method of the protection radius of the active pre-discharge lightning rod Suppose that the forestall start time of the lightning rod is T, then the forestall distance of upward leader     △ L=V=V*  △ T according to the calculation method provided by NFC-17-102 standard, the protection radius Rp is calculated according to the following formula: Representative= h(2D-h)+ △ L(2d+ △ L)h≥5 D motor distance, it depends on the level of protected buildings, for level lll protection object,D values are 20m, 45m,60m separately. h is the distance from the top of the lightning rod to the protected plane. △ T is tested by the evaluation and calculated (see table above) V=106m/s, △ L=V* △ T ■ Main technical parameters  

lnstallation height of LY30-Z lightning rod	5	6	7	8	10	15	20	45	60
LY30-Z protection Cat. l
LY30-Z-3.1 lightning rod	22	22	23	23	25	25	25	-	-
LY30-Z-3.3 lightning rod	42	42	43	43	43	44	45	-	-
LY30-Z-4.3 lightning rod	51	51	52	52	53	53	54	-	-
LY30-Z-5.3 lightning rod	61	61	61	61	62	62	63	-	-
LY30-Z-6.3 lightning rod	70	70	70	70	71	71	72	-	-
LY30-Z protection Cat. ll
LY30-Z-3.1 lightning rod	44	44	46	47	48	51	59	-	-
LY30-Z-3.3 lightning rod	57	58	59	60	63	65	70	-	-
LY30-Z-4.3 lightning rod	68	69	69	70	73	74	79	-	-
LY30-Z-5.3 lightning rod	78	79	79	80	82	84	88	-	-
LY30-Z-6.3 lightning rod	88	89	89	90	92	93	97	-	-
LY30-Z protection Cat. lll
LY30-Z-3.1 lightning rod	50	50	52	52	55	59	74	-	-
LY30-Z-3.3 lightning rod	64	67	68	72	75	83	85	-	-
LY30-Z-4.3 lightning rod	76	78	79	82	85	92	94	-	-
LY30-Z-5.3 lightning rod	87	88	90	92	94	101	103	-	-
LY30-Z-6.3 lightning rod	97	99	100	102	104	110	112	-	-

1.Central collection rod 2.Reflector 3.Trigger device 4.Actuator 5.Fixed plate for actuatorThere is a round hole on the reflector corresponding to each actuator, and the reflector is electrically connected to the central collection rod and the ground, and the base of actuator is made of synthetic resin and it is suitable for any corrosive environment.installaton of LY30-Z lighting rod must stictly follow mandatory provisions in “Bbuilding Lightning Protection Design Code"(GB50057-2010) of Lightning Protection Standards of the People's Republic of China.