Insulator PDF
ANSI 55-4 pin type insulator
Pin insulator ANSI 55-4 Definition:
Pin insulator is generally consist of insulation parts，if two parts need assembled together with cement. ANSI 55-4 pin type insulator is one of the most commonly used pin type insulator, and ANSI 55-4 pin type insulator belongs to the ceramic insulator.
ANSI 55-4 pin type insulator ANSI 55-4 dimension figure
ANSI 55-4 pin type insulator thread type:
1” porcelain thread type
Assembled spindle or pin for ANSI 55-4 pin high voltage insulator: should fit with 1” lead head spindle
Neck and groove information:
ANSI 55-4 is “F” neck.
Side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches, but shall not seat a mandrel with a diameter of 1-3/8 inches.
Top-wire groove shall seat a mandrel with a diameter of 1-3/4 inches.
Radio freed ANSI 55-4 with semi-conductor glaze on the top.
Specifications of ANSI 55-4 pin type insulator:
Model Number: 55-4
Material: Porcelain
Application: High Voltage
color: brown or grey
Brand Name: Orient Power
Standard: Manufactured and Tested to ANSI Standard C29.5
Orient Power is a famous insulator trading enterprise, and we supply many types ceramic insulators, composite insulator, HDPE insulators and electric power fittings for transimission line. To satisfy our customers' requirement is our company object. We believe that ANSI 55-4 pin type insulator and other types insulators or fittings you want will not let you down but be a surprise.
Technical data:
| Type | 55-4 | ||
| Creepage distance-mm | 229 | ||
| Flashover voltage-kV |
Power frequency | Dry | 65 |
| Wet | 35 | ||
| 50% impulse | Pos. | 105 | |
| Neg. | 130 | ||
| Radio influence voltage |
Test voltage to ground-KV | 10 | |
| Max. RIV at 1000kHz-μv | 50 | ||
| Low freq. Puncture voltage-kV | 95 | ||
| Dry arcing distance-mm | 127 | ||
| Cantilever failing load-lb/KN | 3000/13 | ||
