SU209000A1 - - Google Patents
Info
- Publication number
- SU209000A1 SU209000A1 SU1085546A SU1085546A SU209000A1 SU 209000 A1 SU209000 A1 SU 209000A1 SU 1085546 A SU1085546 A SU 1085546A SU 1085546 A SU1085546 A SU 1085546A SU 209000 A1 SU209000 A1 SU 209000A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- explosion
- proof
- shell
- test
- chamber
- Prior art date
Links
- 238000004880 explosion Methods 0.000 description 10
- 239000002360 explosive Substances 0.000 description 4
- 239000000789 fastener Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000817 safety factor Toxicity 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Description
СПОСОБ METHOD
Известны способы типовых испытаний взрывонепроницаемых образцов электрооборудовани во взрывной камере посредством взрыва в ней паро- или газо-воздушной среды .Known methods for type testing of explosion-proof samples of electrical equipment in an explosion chamber by means of an explosion in it of steam or gas-air medium.
Измерение зазоров фланцев, крепежных элементов, при помощи которых оболочка крепитс во взрывной камере, и стенок испытуемой оболочки при испытани х производитс щупами ГОСТ 882-41. Конструкци клиновидного щупа общеизвестна. Применение взрывонепроницаемых разгрузочных устройств при испытании на взрывонепроницаемость также вл етс щироко известным техническим приемом.The measurement of the gaps of the flanges, fasteners, with which the shell is attached in the explosion chamber, and the walls of the test shell during tests, is made with gauges GOST 882-41. The construction of the wedge probe is well known. The use of flameproof dischargers in an explosion proof test is also a well-known technique.
Предлагаемый способ отличаетс от известных тем, что испытуемую оболочку и взрывную камеру заполн ют взрывчатой смесью под избыточным давлением. Измер ют деформации ее фланцев, крепежных элементов и стенок испытуемой оболочки, по которым суд т о степени годности оболочки. Это позвол ет установить необходимые коэффициенты запаса взрывонепроницаемости и взрывоустойчивостиThe proposed method differs from the known ones in that the test shell and the explosion chamber are filled with an explosive mixture under pressure. The deformations of its flanges, fasteners and walls of the test shell are measured, by which the suitability of the shell is judged. This allows you to set the required explosion-proof and explosion-proof safety factors.
Испытани взрывонепроницаемой оболочки электрооборудовани производ т во взрывной камере, взрыва в ней паро- или газовоздушную среду. Замер давлени осуществл етс тензометрическим датчиком давлени . Увеличение зазоров при взрыве вследствие деформации фланцев и крепежных элементов измер етс с помощью самотормоз щего клиновидного щупа.Testing of an explosion-proof electrical equipment shell is carried out in an explosion chamber, the explosion of a vapor or gas atmosphere in it. The pressure is measured by a strain gauge pressure sensor. The increase in the gaps in the explosion due to the deformation of the flanges and fasteners is measured using a self-braking wedge-shaped probe.
Предмет изобретени Subject invention
Способ типовых испытаний взрывонепроницаемой оболочки электрооборудовани во взрывной камере посредством взрыва в ней паро- или газо-воздушной среды, заполн ющей оболочку, отличающийс тем, что, с целью установлени необходимых коэффициентов запаса взрывонепроницаемости и взрывоустойчивости , испытуемую оболочку и взрывную камеру заполн ют взрывчатой смесью под избыточным давлением, производ т взрыв в испытуемой оболочке и измер ют при этом деформации фланцев, крепежных элементов и стенок испытуемой оболочки, по которым суд т о степени годности оболочки . ТИПОВЫХ ИСПЫТАНИЙ ВЗРЫВОНЕПРОНИЦАЕМОЙ ОБОЛОЧКИ ЭЛЕКТРООБОРУДОВАНИЯA type test method for an explosion-proof electrical equipment enclosure in an explosive chamber by means of an explosion in it of a vapor or gas-air medium filling the enclosure, characterized in that, in order to establish the necessary explosion-proof and explosion-proof factors, the test shell and explosive chamber are filled with an explosive mixture with an overpressure, an explosion is performed in the test shell and, at the same time, the deformations of the flanges, fasteners and walls of the test shell are measured, according to which degree of shelf life. TYPICAL TESTS OF EXPLOSION-EXCLUSIVE SHELL ELECTRIC EQUIPMENT
Publications (1)
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SU209000A1 true SU209000A1 (en) |
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