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Contact us: Fuzhou Lingt Trading Co.,Ltd.
Tel:+86-591-87618322
Fax:+86-591-83965269
E-mail:william@fjever.com
Skype:86 15359012365
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porcelain line post insulators

porcelain line post insulators

line post insulators are manufactured and tested to the requirements of ANSI Standard C29.7
Color:brown and gray

MAIN DIMENSTIONS AND STANDARD PARTICULARS

ANSI Class			57 -31	57-32	57-33	57-34	57-35
Fig. No.			1	2	3	4	5
Leakage distance/ mm			356	559	737	1016	1143
Dry arcing distance/ mm			165	241	311	368	438
Cantilever strength/ kN			12.5	12.5	12.5	12.5	12.5
Average flashover voltage	Low-frequency	Dry/kV	70	100	125	140	160
	Low-frequency	Wet/kV	50	70	95	110	130
	Critical-impulse	Positive/ kV	120	160	200	230	265
	Critical-impulse	Negative/ kV	155	205	260	340	380
Radio-influence voltage date	Test voltage to Ground/ kV		15	22	30	44	44
Radio-influence voltage date	Maximum RIV at 1.000kc/μV		100	100	200	200	200
Net weight each approx./kg			9.5	12.5	15.7	18.8	21.5

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Fuzhou Lingt Trading Co., Ltd.

Tel:15359012365

Contact Person:William