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The Glow Wire Test Temperature For Surge Protective Device 2015-12-02
The Glow Wire Test Temperature For Surge Protective Device Based on IEC 61643 clause 7.9.4, the glow wire tester is applied to ensure that an electrically heated test wire under defined test conditions does not cause ignition of insulating parts, or to ensure that a part of insulating materials, which mig...
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Mechanical strength test for switch for household and similar fixed -electrical installation 2015-11-23
Mechanical strength test for switch for household and similar fixed -electrical installation According to IEC 60669 clause 20, switches ,boxes and screwed glands of switches that have an IP code higher than IP0 shall have adequate mechanical strength so as to withstand the stresses imposed during installation and use. ...
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The glow wire test for switch for household and similar fixed -electrical installation 2015-11-14
The glow wire test for switch for household and similar fixed -electrical installation Based on IEC60669 clause 24.1.1, the glow wire tester is performed according to IEC 60695-2-1 under following condition: For parts made of insulating material necessary to retain current carrying parts and parts of the earth circuit ...
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The requirements of mechanical strength for transformer 2015-11-12
The requirements of mechanical strength for transformer In compliance with IEC 61558 standard,transformers shall have adequate mechanical strength, and be so constructed as to withstand rough handling as may be expected in normal use. Compliance is checked by F22.50 Spring Hammer Impact Testing, tumbling barrel fall te...
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The glow wire test for circuit breakers for overcurrent protection for household and similar installations 2015-11-11
The glow wire test for circuit breakers for overcurrent protection for household and similar installations According to IEC 60898 clause 9.15, to ensure that an electrically heated test wire under defined test conditions does not cause ignition of insulating parts, or to ensure that a part of insulating material ,which...
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The Needle Flame Test For Miscellaneous Lampholders 2015-11-10
The Needle Flame Test For Miscellaneous Lampholders Based on the IEC 60838-1 clause 16.4, parts of insulating material retaining live parts or ELV lamp contacts in position, are subjected to the needle flame burner test in accordance with IEC 60695-11-5 as below : – The test flame is applied to the centre of the surfac...
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The Glow Wire Test Temperature for Miscellaneous Lampholders 2015-11-09
The Glow Wire Test Temperature for Miscellaneous Lampholders As per IEC 60338-1 clause 16.3, external parts of insulating material, including those with a conductive exterior,providing protection against electric shock and parts of insulating material retaining ELV parts in position, are subjected to the glow wire test...
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Impact Hammer Test for Appliance Couplers for Household and Similar General Purposes 2015-11-07
Impact Hammer Test for Appliance Couplers for Household and Similar General Purposes According to IEC 60320-1 clause 25.3, appliance inlets designed for surface-mounting and having a shroud of insulating material, other than elastomeric material, or thermoplastic material, are tested by means of the F22.50 Sp...
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The Required Glow Wire Test Temperature for Internal Parts of Insulating Material for power transformers, power supplies,reactors and similar products 2015-11-03
The Required Glow Wire Test Temperature for Internal Parts of Insulating Material for power transformers, power supplies,reactors and similar products According to IEC 61558 clause 27.3.2 , internal parts of insulating materials retaining (keeping in position) current carrying parts in position shall be resistant to ig...
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The Required Glow Wire Test Temperature for External Parts of Insulating Material for power transformers, power supplies,reactors and similar products 2015-11-02
The Required Glow Wire Test Temperature for External Parts of Insulating Material for power transformers, power supplies,reactors and similar products Base on IEC 61558-1 clause 27.3.1 , external parts of insulating materials shall be resistant to ignition and spread of fire. Compliance is checked by subjecting enclosu...
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