Annual Report 2003-2004

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Mass Production of Research Projects PrototypesNRIProduct Title:Electrical Field Alarm 5kV/mProducer: Imen Bargh Trading Co.Research Center: Transmission & DistributionDepartment: High voltageIntroduction- Definition- General Information:Lifeguard and individual protection for maintenance and operational teams who dealingwith high voltage and high power equipment (substation, industrial center, power plant,transmission and distribution line …) is one of the importances in power industry.Electrical field alarm instrument is a usefull tool for warning about probable dangers inhigh voltage field, and to protect involving personnel of unwanted events as soon asfacing with disallowable voltage fields, this instument will give the alarn signal to makethem of existing such a field, and warn them to take the apropriate clearance.This instrument is designed such that it can simply attach on protection helment orpersonal belt.Main Characteristics: Low power consumption and long life operation (50 hours in standby mode and 5hours in alarm mode) Internal rechargable Ni-Cd battery with 1000 duty cycle Low power LED indicator (Lights in 1.2 V decrease in voltage) On/Off power switch Output connector for inserting electrical field sensor jack Temperature range from 0 C to 50 C with 52 Ip138
NRIMass Production of Research Projects Prototypes Proper quadrue designed charger with current limit at 20 mA and charging in 12hours Sensitivity set at 5 kV/mTechnical Information:- Dimention (L×W×H) (62mm×32mm×24mm)- Sensor dimention and link wire length (75mm×75)- EFA5 weight without leath cover: gr- Sensor and jack weigh: grEF A5 Accessories- Water proof electrical field sensor with simple instalation- Leather cover With double propose- Holder belt- Electrical chargerApplication/Performance/Use:- Electrical field alarm is a useful instrument for warning about probable danger inhigh voltage fields, so it protects personel against unwanted Electric fields and events.139
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Annual Report 2003-2004

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