Power Fittings Porcelain Disc Suspension Insulator for Overhead Power Lines

Porcelain disc suspension insulator for overhead power lines. Contact Kangnaigu with your required model, mechanical rating and quantity for a quotation.

Email: info@kangnaigu.net

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Product Details

1Product Attributes（General specification）

Product Name	Disc Suspension Porcelain Insulator (Cap & Pin Type)
Ceramic Body	High-strength electrical porcelain, white glazed; brown glazed optional
Metal Fittings	Hot dip galvanized cast iron cap + carbon steel pin
Coupling Type	Ball & socket, interchangeable within same strength class
Typical Models	XP-70 / XWP-70 / XP-100 / XWP-100 / XP-120 / XWP-120 / XP-160 / XWP-160
IEC Class	U70BL / U100B / U120B / U160B
Standard	IEC 60383 · GB/T 7253 · ANSI C29
Origin	Hebei · Handan · Yongnian — Integrated Manufacturer & Exporter
MOQ	500 PCS (negotiable for trial orders)

2Electrical & Mechanical Performance（By model）

Specified Mechanical Failure Load	70 / 100 / 120 / 160 / 210 kN
Power Frequency Withstand Voltage	Reference 40–60 kV per unit; string length per line voltage
Lightning Impulse Withstand	Reference 100–150 kV per unit
Power Frequency Sparkover	≥ 110 kV (ceramic body shall not puncture)
Creepage Distance	Standard type 295 mm / Anti-pollution type 400 mm
Coupling Mark	Ball & socket 16 (70–120 kN class) / 20 (160 kN class)

3Structure & Finish

Glaze Color	White glazed by default; brown glazed optional
Metal Fittings	Hot dip galvanized for long-term outdoor corrosion protection
Shade Type	Standard shed / anti-pollution double & triple shed (XWP series)
Cement	High-grade Portland cement with expansion buffer, porcelain & metal bonded

4Size & Model Table（Specified load in kN）

Same strength class standard and anti-pollution types share the same ball & socket coupling, fully interchangeable.

Model	IEC Class	Mechanical Failure Load (kN)	Creepage Distance (mm)	Coupling	Type
XP-70	U70BL	70	295	16	Standard
XWP-70	U70BL	70	400	16	Anti-pollution
XP-100	U100B	100	295	16	Standard
XWP-100	U100B	100	450	16	Anti-pollution
XP-120	U120B	120	320	16	Standard
XWP-120	U120B	120	450	16	Anti-pollution
XP-160	U160B	160	340	20	Standard
XWP-160	U160B	160	550	20	Anti-pollution

5Applications & Packaging

Applications	HV / EHV transmission lines, substation busbars, distribution lines, suspension & tension towers, industrial / coastal heavy-pollution areas, lightning protection strings
Packaging	Plastic wrap + export carton, loaded on pallets with cap facing down to protect porcelain
Documents	PI, Packing List, Certificate of Origin, ISO 9001, Inspection Report
Payment Terms	30% T/T in advance, balance before shipment
Lead Time	20 – 45 days depending on quantity and stock

6Available Types

Porcelain SuspensionStandard XP SeriesAnti-pollution XWP70–160 kNBall & SocketWhite GlazedBrown GlazedHDG FittingsToughened Glass OptionalOEM & ODM

Request a Quote

Please provide the model (e.g. XP-70 / XWP-70), mechanical failure load class, standard or anti-pollution shed, glaze color and quantity. Kindly let us know if you need grading rings, arcing horns or matching line hardware.

Email: info@kangnaigu.net

Get A Quote