Pre-discharge Lightning Rod

discharging in shorte st time accurately Non-electronic type,long working life easy operate

Product introductionThe strength of electric field between central collection rod and exciter in the lightning rod rise up quickly, and lead to atmosphere ionization in the top end, it will discharging in shorte st time accurately, due a great deal of electricion existing, which weaken the domino offect from natural Corona, produce a prospective discharging passage, it can quickly, safely lead the lighting surging into ground. Operation ElementsNon-electronic type, long working life, only when lightning happen, the lighting rod will be excited by itself, with prospective disch-arging function, forwardly guide the lightning system, after to withstand repeated lightning discharging, it still has such continuity of electric performances.Model and SignificationTechnical Parameter

Model and specification	MBD-Z-300
Lightning passing current	400kA
Ground resistance requirement	≤10
Wind resistant strength	≤40m/s
Height	67cm
Weight	8.5kg
Characteristics	Pre-discharge lightning type
Prospective discharging timeT	52s

Table of cross-refer Height and protect Radii(meter)

Classification	Category IprotectiveheightD=20m	Relatedprotectiveradius (m)	Category IIprotectiveheightD=50m	Relatedprotectiveradius (m)	Category IIIprotectiveheightD=60m	Relatedprotectiveradius (m)
MBD-Z-300Sheet of heightfrom pin oflightning rod toground versusprotectiveradius (m)	5	42	5	57	5	64
	6	42	7	58	8	67
	7	43	8	59	10	68
	8	43	10	60	15	72
	10	43	15	63	20	75
	15	44	20	65	45	83
	20	45	45	70	60	85

NB: The above data is calculated on basis of lightning rod height H = 5m. Calculation formula of protective radius at prospective self-discharging If prospective discharging time: T, then prior lead-up distance L=V*T, according to calculation methods specified in NFC-17-102 standard, protective radius Rp come from the following formula:Representative= radical sign[h(2D-H)+ L(2D+ L)] h5 D distance of lightning strike, determined by the grade of objects to be protected, for category III object, D equal to 20m, 45m, 60m respectively. H height from pin of lightning rod to the surface of protected objectT come from calculation and evaluation (as above sheet) V=106m/s L=V*T

Pre-discharge Lightning Rod