福州山锦电器有限公司

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	Special ceramics
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POST INSULATORS

STANDARD PARTICULARS FOR VERTICAL TIE-TOP TYPE
ANSI Class			57-1	57-2	57-3	57-4	57-5
Figure Number			1	2	3	4	5
Creepage 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
Low Frequency Flashover Voltage	Dry	kV	70	100	125	140	160
Low Frequency Flashover Voltage	Wet	kV	50	70	95	110	130
Critical Impulse Flashover Voltage	Positive	kV	120	160	200	230	265
Critical Impulse Flashover Voltage	Negative	kV	155	205	260	340	380
R.I.V.	Low Frequecny Test Voltage RMS to ground	kV	15	22	30	44	44
R.I.V.	Max RIV at 1 MHz	µV	100	100	200	200	200
Net Weight(Approx.)		kg	5.2	9.0	11.0	15.0	18.0
Applicable Specifications: ANSI C29.7 & ANSI C29.1

STANDARD PARTICULARS FOR VERTICAL CLAMP TOP TYPE
ANSI Class			57-11	57-12	57-13	57-14	57-15
Figure Number			6	7	8	9	10
Creepage 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
Low Frequency Flashover Voltage	Dry	kV	70	100	125	140	160
Low Frequency Flashover Voltage	Wet	kV	50	70	95	110	130
Critical Impulse Flashover Voltage	Positive	kV	120	160	200	230	265
Critical Impulse Flashover Voltage	Negative	kV	155	205	260	340	380
R.I.V.	Low Frequecny Test Voltage RMS to ground	kV	15	22	30	44	44
R.I.V.	Max RIV at 1 MHz	µV	100	100	200	200	200
Net Weight(Approx.)		kg	6.8	10.0	11.8	15.9	18.6
Applicable Specifications: ANSI C29.7 & ANSI C29.1

STANDARD PARTICULARS FOR HORIZONTAL CLAMP TOP-CUP TYPE
ANSI Class			57-21	57-22	57-23	57-24	57-25
Figure Number			11	12	13	14	15
Creepage 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
Low Frequency Flashover Voltage	Dry	kV	70	100	125	140	160
Low Frequency Flashover Voltage	Wet	kV	50	70	95	110	130
Critical Impulse Flashover Voltage	Positive	kV	120	160	200	230	265
Critical Impulse Flashover Voltage	Negative	kV	155	205	260	340	380
R.I.V.	Low Frequecny Test Voltage RMS to ground	kV	15	22	30	44	44
R.I.V.	Max RIV at 1 MHz	µV	100	100	200	200	200
Net Weight(Approx.)		kg	7.5	10.5	12.7	16.8	19.5
Applicable Specifications: ANSI C29.7 & ANSI C29.1

STANDARD PARTICULARS FOR HORIZONTAL CLAMP TOP GAIN BASE TYPE
ANSI Class			57-31	57-32	57-33	57-34	57-35
Figure Number			16	17	18	19	20
Creepage 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
Low Frequency Flashover Voltage	Dry	kV	70	100	125	140	160
Low Frequency Flashover Voltage	Wet	kV	50	70	95	110	130
Critical Impulse Flashover Voltage	Positive	kV	120	160	200	230	265
Critical Impulse Flashover Voltage	Negative	kV	155	205	260	340	380
R.I.V.	Low Frequecny Test Voltage RMS to ground	kV	15	22	30	44	44
R.I.V.	Max RIV at 1 MHz	µV	100	100	200	200	200
Net Weight(Approx.)		kg	9.5	12.5	15.7	18.8	21.5
Applicable Specifications: ANSI C29.7 & ANSI C29.1

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