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Brand Name : | YUHUI |
Model Number : | Communications Security Equipment Multi functional Accept ODM and OEM From China Factory Flexible Size |
Certification : | ISO9001 |
Price : | negotiable |
Payment Terms : | L/C, T/T, Western Union, MoneyGram |
Supply Ability : | 10000 per week |
Delivery Time : | 10 work days |
Clothing static protection
1. When the danger level of a gas explosion is in zone 0 or zone 1,
and the minimum ignition energy of combustibles is less than
0.25mJ, the worker shall wear work clothes that are free from the
danger of static electricity ignition. When the relative humidity
of the environment is kept above 50%, wear cotton overalls.
2. Persons working in explosive places should wear anti-static
(conductive) shoes to prevent the body from being charged and the
ground should be equipped with conductive grounds.
3. It is forbidden to wear clothes, hats or the like in places
where there is a risk of explosion.
All accidents that are suspected of being ignited by static
electricity shall be analyzed and confirmed in accordance with the
following provisions in addition to routine accident investigation
and analysis.
1. Check to analyze if there is a necessary condition for ignition
due to electrostatic discharge
(1) Through the analysis of the relevant operating equipment,
material properties, personnel operation and environmental
conditions, it is estimated that there may be static electricity on
the equipment, objects and their degree of electrification,
discharge conditions and types.
(2) Collect and measure necessary relevant technical parameters and
estimate possible discharge energy.
(3) Make a propositional opinion on whether it is an electrostatic
discharge source, or make corresponding conclusions on relatively
simple and obvious situations.
2. For the more complicated cases, the following part or all of the
following contents should be selected for further testing based on
actual needs and possibilities. After comprehensive analysis,
corresponding conclusions should be made.
(1) Fully collect or measure relevant technical parameters, mainly
including environmental temperature, humidity and ventilation,
types of combustibles, locations of release sources, possible
concentrations and distribution of explosive gases, and existing
fire prevention and explosion protection measures and their actual
effects. , Flow and flow rate of materials related to static
electricity, and conditions of operation and operation of
personnel, possibility of other non-electrostatic sources of fire,
etc.
(2) Analytical testing of leftover debris, by selecting objects
(mainly metal parts) that may be electrostatically charged and
discharging, and observing the microscopic appearance through an
electron microscope to find out whether there is a similar “crater”
feature. High temperature melting micro pits. To determine the
specific part of the electrostatic discharge, determine the cause
of the accident.
(3) When the degree of electrification of an object and the method
of analysis of discharge energy are difficult to determine
quantitatively or semi-quantitatively, it is necessary to refer to
the specific conditions at the time of the occurrence of the
accident to carry out a physical simulation test and verify it.
Simulation tests can be conducted on site or at other suitable
locations.
Further comprehensive analysis of the relevant situation data to
observe whether the interrelationships between the various
situation data are in line with the objective law and whether there
is any contradiction, and if necessary, additional data collection
(including non-electrostatic technology aspects) shall be added for
collection or testing so that Make final conclusions.
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