Insulator PDF
ANSI 52-1,52-9 suspension insulator
ANSI 52-1, 52-9 suspension insulator definition：
ANSI 52-1, ANSI 52-9 suspension insulator is different from ANSI 52-3, 52-4 suspension insulator in connecting ways, they are smaller and with different connection method. These are design according to ANSI international insulator standard and made of wet process porcelain.
suspension insualtor 52-1,52-9 picture suspension insualtor 52-1 size chart suspension insualtor 52-9 size chart
Metal parts connection method of ANSI 52-1 and 52-9:
clevis and ring type insulator, completed with cotter key, which can be bronze, brass, austenitic stainless steel, or aluminum.
Combined mechanical and electrical strength of ANSI 52-1 and 52-9 suspension insulator:
strength is 44KN, equal to 10000lb
ANSI 52-9 and A and B type: ANSI 52-9-A is only different from ANSI 52-9-B on porcelain shell.
As per standard: ANSI C29.1 and C29.2 international high voltage insulator standard
Tests or inspection of ANSI 52-1 and 52-9 suspension insulator:
type tests: thermal-mechanical load test, thermal shock test, residual-strength test, critical impulse flashover tests- positive and negative, low-frequency dry flashover test, low frequency wet flashover test, impact test, cotter key test, cement expansion test. radio-influence voltage test
sample test: galvanizing test, combined mechanical and electrical-strength tests, puncture tests, visual and dimensional tests, porosity test
routine test: flashover routine test and tension proof test
Technical data of ANSI 52-1 and 52-9 suspension insulator:
| ANSI Type | 52-1 | 52-9 | ||
| Fig No. | 1 | 2 | ||
| Main dimension (mm) |
D | 165 | 108 | |
| H | 140 | 160 | ||
| Leakage distance-mm | 178 | 171 | ||
| Power frequency puncture voltage-KV | 80 | 80 | ||
| Flashover voltage -KV |
Power freq. | Dry | 60 | 60 |
| Wet | 30 | 30 | ||
| Critical impulse 1.5x40us wave |
Pos. | 100 | 125 | |
| Neg. | 100 | 90 | ||
| Radio influence voltage |
Test voltage to ground-KV | 7.5 | 7.5 | |
| Max. RIV at 1000kHz-μv | 50 | 50 | ||
| Rated E&M failing load-KN | 44 | 44 | ||
| Tension proof load-KN | 22 | 22 | ||
| Impact strength-N.m | 5 | 5 | ||
More information and technique available on our website for porcelain disc suspension insulator.
