CAT NO: DIDACTICNLE-Export-410003
Collapse Tester For Electrical Lab Training.
Collapse Tester -
Collapse Tester For Rigid Non - Metallic Conduit
Non-metallic
conduits used in electric wiring shall be sufficiently sturdy so as not
to collapse when bent during laying. The ability of these conduits to
bend without causing excessive deformation in their cross section or
reduction in their cross-sectional area is determined by bending a
portion of the conduit through an angle of 90°, maintaining it under
bent condition for a period 24 hours inside a hot air oven maintained at
a temperature of 60 ± 2°C, and subsequently passing a barrel shaped
go-gauge through it. The gauge shall pass through the bent conduit under
its own weight without any restriction.
This test is applicable to conduits of 16, 20, and 25 mm nominal sizes only.
The Collapse Tester
for electrical conduits consists of a jig for firmly holding a test
specimen taken from the conduit under test in a bent state and a stand
to mount the jig in a vertical plane such that a barrel shaped gauge can
be passed through the conduit under its own weight under the effect of
gravity.