| |
|
Visual and Mechanical inspection. |
|
|
|
The
shelters shall be examined for the following: |
- Dimensions
- Various
openings, their sizes and position
- General
appearance, finishing and painting
- Riveting and Welding
- Attachment of skids, lifting
and lashing points
- Ease of door operation,
provision of latch for locking the door, sealing gasket for
door, etc.
|
|
Load test on floor.
|
|
|
The purpose of this
test is to verify the resistance of floor under the effect
of static load. With the shelter resting with its skids on a level surface
the floor is loaded with a total weight of ...........kgs,
equivalent to the designated load, distributed uniformly
for 30 minutes.
Remove the load, the shelter should not present any sign
of deformation. |
|
|
|
|
Load test on door. |
|
|
|
The aim is to test the rigidity
of the hinges and the door panel.The door/doors of the shelter
are opened at 90 deg and are loaded with 60 kgs at a distance
of 600 to 700 mm from hinge center line for 2 hours.
After the load is removed there should not be any permanent deformation
to the shelter and the door/doors shall open, close and seal properly. |
|
|
|
Skidding on rollers. |
|
|
|
|
The aim of this test
is to verify the resistance of shelter to skidding on rollers.
The shelter floor is loaded with ..........kgs, equivalent
to the designated load, uniformly distributed. It is placed
on 2 tube rollers of 80 to 100 mm dia spanning the width
of the shelter with rollers resting on a level, hard concrete
surface the shelter is pushed longitudinally over a distance
of 50 mts once in each direction. (i.e. total of 100 mts.)
At the end of the test the shelter should not present any
permanent deformation. |
|
|
|
|
|
|
|
| |
|
Skidding on ground. |
|
|
The aim of this test
is to verify the resistance of the shelter while skidding
on ground. The shelter floor is loaded with ..........kgs,
equivalent to designated load, distributed uniformly. It
is then towed over a distance of 30 mts, once in each direction
at a speed not greater than 8 kmph on an uneven ground terrain.
During the test at least two right angle turns shall be
carried out.
At the end of the test the shelter should not present any
permanent deformation. |
|
| |
|
Flat drop test. |
|
|
|
|
|
The purpose of this test
is to verify the rigidity of the shelter for droppings encountered
during handling.
The floor is loaded with ..........kgs, equivalent to the designated
load, distributed uniformly. The shelter is lifted 450 mm from
the ground and allowed to fall freely on to a prepared level surface.
This test is performed only once. After the test the shelter is inspected for any damage. All repairable
damages shall be allowed. Damages preventing operational use of
the shelter shall be the criterion for rejection. The door shall
operate without binding. |
| |
|
Rotational drop test. |
|
|
The floor is loaded
with .........kgs, equivalent to the designated load, distributed
uniformly. One edge of the shelter is lifted and placed
on 100 mm high wooden block (i.e. below each corner.) the
opposite edge of the shelter is raised by 250 mm and allowed
to fall freely on to a prepared level surface. Repeat this
for the remaining three edges of the shelter.
After all the drop tests, all repairable damages shall be
allowed and damages preventing operational use of the shelter
shall be the criterion for rejection. The door shall operate
without binding. |
|
|
|
|
Resistance of roof to concentrated
load. |
|
|
|
|
The purpose of this
test is to verify the strength of the roof when subjected
to concentrated loads. A load of 150 kgs is placed over
a surface area of 1000 sq cms at the center of the roof
for 1 hour.
After the load is removed there shall be no deformation
of the roof panel. |
|
| |
|
Rigidity of shelter supported
on three points. |
|
|
|
|
The purpose of this test is to verify
the rigidity of the shelter when supported on three points
such as encountered when placed on an uneven terrain.
A weight of ...........kgs, equivalent to the designated
load , uniformly distributed on the floor of the shelter.
The shelter is then supported at three points situated on
three of its square corners for a duration of 30 minutes.
After the test the shelter shall not present any permanent
deformation. The door shall function without binding. |
|
| |
|
Fording Test |
| |
|
|
| |
|
ROADABILITY |
|
|
| |
|
Our shelters have
undergone various performance and reliability
tests at National Center for Automotive testing at
one of the defence approved testing ground and the
same withstood all the tests. The performance of
the shelter has been found satisfactory. The water
proofness and Dust proofness were also tested and
the shelter was found dust and waterproof.
During subsequent usage of the
shelter during last three years it has been
observed that the performance has not been
degraded and no leakage of water or dust has been
observed |
| |
|
Rain Test |
| |
|
|
The purpose of this
test is to verify the water tightness of the shelter when
exposed to rain.
Water sprayed on shelter at 1 kg/sq. cm for 2 hours from
showers making water to strike the surface and then flow
on the panels. At the end of this period the showers shall
be stopped.
There shall not be any leakage of water into the shelter
through the doors, edges, panels, etc.
Any other test depending upon the special functional requirements
which will be mutually discussed and agreed upon with the
design agency.
|
|
| |
|
|
| |
