purchase of lighting arrester for eee department-- 1 lighting arrester 2 lightning arrester specification :-• alice type : digital• dimensions | box : 80 x 120 x 85 mm box | u.v resistant?• max reading : 9999 does not require a power source • minimum current ( i min ) : 1ka• maximum current ( i max ) : 200 ka• enclosure type : ip 65• light weight & easy to install• to be certified & tested by cpri bangalore • test for dual polarities | positive & negative?• should be coupled with both i.e., with conventional la’s as well as ese type la’s• trigger hme : 60μ sec., • technology : early streamer emmission • standard : n6c – 17 – 102 ( 2011 ) safe lightning protection rod ( s ) |conceptualized & developed usingisr technology | designed & manufactured using s.s 304 l | additional protection : side flash capture head sfch | overall length is 505 mm | icmet certified conforming to nfc 17 - 102 i.e., code of practice for lightning | ?t : 60μs | cpri certified for 40ka ( 8 / 20 μs ) | main rod melting point : 1450° | weight : 6.3 kgs approx | thor 1.0 radius coverage ( 79mtr to 107 mtr level i to level iv ) baron’s back fill compound ( s ) | electrodite | conceptualized & developed by baron’s r & d centre | manufactured using eco - friendly minerals | blended homogeneously with conductive carbon ( s ) | resistivity : < 5 ohm-meter ( in ideal moist conditions ) ; > 5 ohm-meter ( dry conditions ) | ph value :7.0 - 8.5 | high water retention capacity | hygroscopic | ionic & electronic conduction | swells when it comes in contact with water thereby engaging constant contact between the electrode surface & soil which is a crucial aspect in the performance of an earthing system | packing size : 25 kilograms | recommended for normal soil conditions copper bonded rod ( s ) | cbr 173 250 | designed & manufactured using low carbon high tensile steel | rod dia is 18 mm diameter of sphere ( mm ) 135, sfch present yes| over all length is 3000 mm | external corrosion protection : copper plated ( 250+ microns ) | conforms to is : 3043 - 1987 i.e., code of practice for earthling | ( + 10% variations in dimensions is applicable. bottom copper thread : m24