The human body static electricity releasing alarm
1. Product introduction
The human body static electricity releasing alarm is suitable instrument for inflammable and explosive and anti-static sites of human body electrostatic discharge. It’s characterized by reasonable design of the human body electrostatic discharge resistance, reasonable and effective control of human body electrostatic discharge, extend the human body electrostatic discharge time, reducing the instant the human body electrostatic discharge energy, can make human body electrostatic safety release. At the same time can detect body and the electrostatic touch the ball contact is reliable, acousto-opticalarm static elimination is finished.
The human body static electricity releasing alarm design reference below the national standard
GB12158-2006 " Prevent electrostatic accidents general guidelines"
GB5074-2002 " Code for design of oil depot "
The provisions of article 14.3.13: because people wear synthetic fabrics clothes is extremely common, artificial fabric is easy to produce static electricity, tend to accumulate in the body. For anti-static may produce sparks,need to enter the pump house, light oil tank top, light operation platform, as well as the device of explosion hazardous areas at the escalator or arranged at the entrance of eliminating static electricity of human body. The static elimination device is made of metal tube handrail, before entering into these places should touch the human body to eliminate static electricity.
Grounding design of electrostatic petrochemical SH3097-2000 "specification"
The human body static release alarm by the national explosion-proof electrical product quality supervision and Inspection Center (NCEX), in accordance with the following criteria:
GB3836.1-2010 explosive atmospheres - part first: equipment - General requirements
GB3836.4-2010 explosive environment of fourth parts: the intrinsic safety type"I" protection equipment
Product explosion-proof symbol is ExiaIICT4 Gb.
2. Working principle and composition of the product
2.1 Working principle
At present, some flammable and explosive dangerous places still use the metal conductor is directly grounded discharge method to eliminate static electricity on human body, although this approach can eliminate the static electricity on human body, but the way the use of conductor between the discharge form release static charge, the release of small resistance, electrostatic discharge time is short, the moment release energy, which leads to the necessity and the possibility of human electric shock or fire explosion accidents.
The human body static electricity releasing alarm for the current human static removal methods of the lack of reasonable human body electrostatic discharge resistance, prolong the human body electrostatic discharge time, reduce the human body electrostatic release energy, effectively avoid the occurrence of human body electrostatic electric shock and fire and explosion accident phenomenon.
2.2 composition of the product
3 product features
1) ultra low power design, during normal usage and no need to replace the battery
2) touch induction, no mechanical moving parts
3) special epoxy resin sealing, anti-corrosion, waterproof and dampproof
4) explosion-proof touch the ball, to secure the release of electrostatic, human contact does not produce electric shock
5) acousto-optic alarm body and explosion-proof touch ball contact reliabilityand ESD.
6) grounding wire independent detection, grounding resistance conforms to the standard, to ensure reliable grounding
4 electrical parameters
1)power supply: high performance built-in lithium battery
2)dormancy current: <1mA
3 ) working current: <5MA
4) working temperature: -40 ℃ ~60 ℃
5) response time: <1s
6) grounding resistance: ≤ 55
7) explosion-proof grade: ExiaIICT4 Gb
8) accepted static high voltage: 20KV
9) alarm type: Sound and light alarm (>90Db, 30cm linear distance measurement)
5 mechanical parameters
1)pole material: 304 stainless steel
2)pole diameter: diameter 38mm
3)pole wall thickness: 1.0mm
4)product height: 1m
5)touching ball diameter: diameter 90mm
6)mounting flange thickness: 3.0mm
7)ground cable length: 3M linear PU cable pole diameter:diameter 38mm
6 product installation
6.1 pole installation
6.2 grounding wire installation
7 how to use product
8 product installation notes
1). Static release alarm installation must be in accordance with the GB836.15-2010 explosive environment of fifteenth parts: the risk of the electrical installation (other than mines) "the requirements of article 126.96.36.199.
2). Between the maximum ambient temperature between -40 ℃ ~+60 ℃.
3). Do not make changes to the product components, should be in the product manufacturers together to solve the faults occurred in the operation, in order to prevent the damage phenomenon.
4) installation, and maintenance of product shall comply with the product manual, GB3836.12-2010 explosive atmospheres - Part thirteenth: electrical apparatus for explosive gas atmospheres of maintenance, GB3836.15-2010explosive atmospheres - Part fifteenth: hazardous area electrical installation(other than mines), GB3836.16-2010 explosive atmospheres - Part sixteenth:electrical equipment inspection and maintenance (except mine) and the relevant provisions of the GB50257-1996 "installation of the electrical installations of explosion and fire hazardous electrical equipment construction and acceptance specification".
5) products can not work normally, need to replace the explosion-proof touch ball.
1). Keep the equipment clean, regular cleaning of the explosion-proof touchdust, ball on the oil, prevent the reduction of sensitivity explosion-proof touchball.
2). Regular inspection and maintenance of equipment, check the grounding wire grounding bolt and other parts is loose, so as not to cause bad contact.