Hi ghTástálaí adhainte stua voltais
Tástálaí Ardvoltais Ard -Adhaint de Thástálaí Friotaíochta Arc UL746A
Sonraí Táirgí: Samhail ZLT-HVL
High Voltage Arc Ignition Tester
This test method covers, in a preliminary fashion, the differentiation among similar materials with respect to their resistance to the action of a high-voltage, low-urrent arc close to the surface of insulation, intending to form a conducting path therein or in causing the material to become conducting due to the localized thermal and chemical decomposition and erosion,according to IEC61621, ASTMD495, UL746A Clásal 22.2.
Standard Outfit:
1 arc-resistance test circuit, to provide high-voltage up to 12.5KV, adjustable
1 current control resistors set with R10,R20,R30,R40-four resistors,provide arc currents of 10mA,20mA,30mA and 40mA respectively,
1 milliammeter,A-An ac milliammeter capable of reading from 10mA to 40mA with an error of not over±5%,
1 electrode set ,are made from 2,4mm±0,05mm diameter tungsten rod which is free from cradks,pits or rough spots,the free electrode length shall be a minimum of 20mm,shall be ground and polished to produce and angle of 300±1 0to the axis,
1 electrode fixture ,to provides a means of holding the electrodes and the test specimen at the proper angle for applying the arc to the tip surface of the test specimen,each electrode déanfar é a choigeartú ionas go luíonn sé go neamhspleách ar an eiseamal tástála le fórsa 0,5n ± 0,05n, luíonn siad san eitleán ingearach céanna agus tá siad araon claonta 350 ± 10 ón gcothrománach, 1 tomhsaire, chun an 6.35mm ± 0.08mm de dhá spás a thomhas, 1MM -SMERENT,
an t -imfhálú .
10 SURBENT, gan vearadh, gan fíoras, gan a bheith ag fulaingt de 300m × × 1MMMAMM, 10MMAMM, gan aon fhás, ní fhuascailt, gan ach an t -× Toisí, a dhéantar
Soláthar Cumhachta: 220V50Hz Iarratas Voltais Eile.
