ANSI 52-4,52-6 suspension insulator
ANSI 52-4, 52-6 suspension insulator definition：
ANSI 52-4, ANSI 52-6 suspension insulator is different from ANSI52-3, 52-5 in connecting ways, but also one of commonly used disc suspension insulator. These are made of ceramic, and design according to ANSI international insulator standard.
suspension insualtor ANSI 52-4 picture suspension insualtor ANSI 52-4 size chart
Hardware connection method of ANSI 52-4 and 52-6:
clevis and tongue type insulator, completed with hump type cotter key
Rated electrical and mechanical failing load of ANSI 52-4 and 52-6 suspension insulator:
52-4: strength is 70KN, equal to 15000lb
52-6: strength is 111KN, equal to 25000lb
Applied standard: ANSI C29.1 and C29.2 international insulator standard
Tests or inspection of ANSI 52-4 and 52-6 suspension insulator:
Design tests of porcelain disc suspension insulator: critical impulse flashover tests- positive and negative, low-frequency dry flashover test, low frequency wet flashover test, thermal-mechanical load test, thermal shock test, residual-strength test, impact test, radio-influence voltage test, cotter key test, cement expansion test.
quality conformance tests: combined mechanical and electrical-strength tests, puncture tests, visual and dimensional tests, porosity test, galvanizing test,
routine test: tension proof test, flashover test on each high voltage insulator.
Technical data of ANSI 52-4 and 52-6 suspension insulator:
|ANSI Type||ANSI 52-4||ANSI 52-6|
|Power frequency puncture voltage-KV||110||110|
|Test voltage to ground-KV||10||10|
|Max. RIV at 1000kHz-μv||50||50|
|Rated E&M failing load-KN||70||111|
|Tension proof load-KN||35||55.5|
Please contact us if you are interested in the technique or buying of the disc suspension insulators.