Heat shrinkable creepage extension sheds are used to increase the surface creepage distance of the protected cores of cable terminations without increasing the tail length. Heat Shrinkable strain relief sheds are used to restrict the cable cores from over bend-ing thus protecting from damage in the termi-nation near the crutch area. The creepage extension sheds and strain re-lief sheds are made from thermally stablized, cross linked, non-tracking weather polymeric material. These are coated internally with wa-ter resistant mastic..
CHARACTERISTIC | VALUE | TEST METHOD |
---|---|---|
PHYSICAL PROPERTIES | ||
Specifice Gravity | 1.19 +02 | ASTM D-1505 |
Water Absorption | 1% (Max.) | ASTM D-570/ISO 62 |
Tensile Strength | 6N/SOMM (Min.) | ASTM D-412/ISO 37 |
Ultimate Elongation | 200% (Min.) | ASTM D-412/ISO 37 |
Hardness | 28 +3 Shore D | ASTM D-2240 |
THERMAL AGING TEST AT 120° FOR 500 HOURS | ||
Tensile Strength | 5.5 N/SMM (Min.) | ASTM D-412/ISO 37 |
Ultimate Elongation | 100% (Min.) | ASTM D-412/ISO 37 |
ELECTRICAL PROPERTIES | ||
Volume resistivity | 1 x 10ohm cm (Min.) | ASTM D 257/IEC 93 |
Di-electric Strength | 10kv/mm (Min.) | ASTM D 149/IEC 243 |
Di-electric constant | 5 (Max.) | ASTM D 150/IEC 250 |
Model No SIZE. | A | D | H | D | TS | TF | |
---|---|---|---|---|---|---|---|
+2 | E | S | S+20% | S+20% | |||
min | min | max. | |||||
GSRS 3517 | 145 | 35 | 17 | 26 | 30 | 4 | 2.2 |
GSRS 4525 | 169 | 45 | 25 | 28 | 40 | 4 | 2.2 |
GSRS 6025 | 169 | 60 | 25 | 28 | 40 | 4 | 2.5 |
Model No . | D | d | H | e | TS | TF | |
---|---|---|---|---|---|---|---|
+2 | E | S | S+20% | S+20% | |||
min | min | max | min | max | S+20% | S+20% | |
GCE 1 | 92 | 35 | 13 | 17 | 10 | 2.5 | 2.5 |
GCE 2 | 124 | 47 | 21 | 20 | 10 | 2.8 | 2.8 |
GCE 3 | 142 | 57 | 31 | 24 | 10 | 2.8 | 2.8 |
GCE 4 | 142 | 72 | 41 | 28 | 10 | 2.8 | 2.8 |