CML No. 9385793

IRW Indian Rubbers (IRW Electro safe Mat) Chennai-TN-INDIA

TEST REPORT OF INSULATING MAT FOR ELECTRICAL PURPOSES

IS: 15652:2006 PARTICULAR OF SAMPLE NATURE OF SAMPLE – Insulating Mats for Electrical purposes DECLARED VALUE - Working voltage - 36 KV BD 66 kv

Thickness – 3 mm

MFG. DATE- 15/02/2015 DATE OF TESTING-16/02/2015 PHYSICAL REQUIRMENT AT VISUAL EXAMINATION : PARTICULARS SPECIFIED REQUIRMENTS

RESULT

1. Colour 2.Material

and

Manufacture 3. Lower

surface

of mat 4. upper

surface of mat

5.Workmanship and finish

Colour shall be as agreed to between the purchaser & the supplier. However no colour with

metallic derivatives shall be

used. The mats shall be made of

the elastomer; free insertion’s

leading to deteriorattion of

insulation properties Lower surface shall be plane or

could be finished slip resistant

with out affecting adversely the

di-electrical properties of mat. Upper surface shall be smooth or as per client aberration. (Rough surface without edge) The meterial shall be free from

blister, pinholes cracks.

Black

Elastomer free

from any insertion

leading to

deterioration

properties.

Slip resistant

Rough surface

without edge.

Satisfactory

DIAMENSIONAL PROPERTIES

1. Length 2.0 mtr ± 20 mm 2.01 mtr

2. Width 1 mtr ± 20 mm 1.01 mtr

3.Thickness 3 mm ± 10 % 2.55,2.52,2.55,2.58

Page1 of 2

2.52,2.55 mm

PHYSICAL PROPERTIES:

PARTICULARS OF TEST REQUIRED VALUE RESULT

1.TENSILE STRENGTH AT -10 TO 55ºC

TENSILE STRENGTH 15 N/mm2 17.5,17.8 N/mm

2

min. min.

% ELONGATION AT BREAK 350% Min. 445,455 %

Q ACCELERATED AGEING TEST@ 700 +1

0 C FOR 168 Hrs.

2a. % CHANGE IN TENSIL STRENGTH FROM

-12.8,-13.0%

ITS CORRESPONDING VALUE -25%

2b. % CHANGE IN ELONGATION AT BREAK -10.5,-12.0%

FROM ITS CORRESPONDING VALUE -25%

3. Alkalies & oil resistance test @ room temp. for 48 hrs. In 30% of

concentrated NaoH, HSD & Transformer oil.

3a. % CHANGE IN TENSILE -20 % -13.5,-14.2%

STRENGTH FROM ITS

CORRESPONDING VALUE

3b. % CHANGE IN ELONGATION -20 % -15.6,-16.5%

AT BREAK FROM ITS

CORRESPONDING VALUE There are no tear, break or

4. LOW temp. Resistance @

-10 ± 3ºc for 1 hrs. the cracks show of the end passed

of the test when 100 N

Force applied on Sample.

Sample also conform ac

5. Extreme low temp. @ -40 proof voltage test

There are no tear, break or

± 3ºc for 24 ± 0.5 hrs. the cracks show of the end passed

of the test when 100 N

Force applied on Sample.

Sample also conform ac

ELECTRICAL PROPERTIES proof voltage test

Insulation material with

1. Insulation resistance

with water water for all classes of Passed

mat shall be min. 100000 m

omh When measured with 5000

2.AC di-electric strength v megger.

passed

45 kv min.

test

10 mA max. 5 mA (passed)

3. Leakage current

4.AC Proof voltage Shall with stand 36 kv for

Passed

3 minute.

CENTRAL POWER RESEARCH INSTITUTE Q.C.I.

Page 2 of 2

CPRI