Is this product suitable for 330KV lines?

Yes, these fittings are designed to grade and shield insulator strings for 330KV and above transmission lines.

What standards does the product comply with?

The product complies with GB standards.

Mrj3 Series Three-Bundle Jumper Spacer - Protective Fitting for Transmission Lines

Name: Mrj3 Series Three-Bundle Jumper Spacer - Protective Fitting for Transmission Lines
Brand: YONGU GROUP CORPORATION CO., LTD.
SKU: 1954343065

Zhejiang, ChinaYONGU GROUP CORPORATION CO., LTD.

US$8.00-10.00

100 Pieces

Product profile

Customization

Available

Technics

Welding

Standard

Model NO.

MRJ3

Usage

Protective Fitting

Type

Protection Fittings

Color

Grey

Transport Package

Pacakge

Trademark

YONGU

Origin

China

HS Code

85369090

Production Capacity

500000PCS/Year

Key features

CNAS Accredited Lab: Nationally accredited laboratory with over 3,500 sqm area and advanced testing equipment.

State Grid Supplier: Shortlisted as Class A supplier for State Grid, China Southern Power Grid, and Inner Mongolia Electric Power.

Wide Conductor Compatibility: Suitable for various conductors including LGJ-240, LGJKK-600, LGJQT-1400, and NAHLGJQ-1440.

Vibration Restraint: Effectively restrains aeolian vibration of conductors and ground wires on overhead transmission lines.

High Voltage Shielding: Grades and shields insulator strings for 330KV and above transmission lines and substations.

OEM/ODM Support: Offers OEM and ODM services with 50 R&D engineers and intelligent manufacturing lines.

Grey Color Standard: Standard color option is Grey for the protective fitting.

GB Standard Compliance: Manufactured according to GB standards with welding technics.

Company profile

YONGU GROUP CORPORATION CO., LTD.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2005-11-15 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤4.25h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryYONGU GROUP CORPORATION CO., LTD. is a China-based limited company operating in electrical and electronics, with a stated establishment date of 1999 and manufacturing operations in Zhejiang. The supplier reports substantial industry experience, export activity since 2005, 507 employees in one record, and a 35,000 m² manufacturing plant. Its product range covers power fittings, clamps, cable accessories, insulators, switches, breakers, fuses, arresters, and related products. Evidence supports ISO 9001 and ISO 14001 certification, dedicated research and testing facilities, production licensing, and product testing by several Chinese power-industry institutions. The supplied information does not sufficiently establish after-sales execution, financial credibility, customization capability, or identifiable customer cases. Some company-scale data is inconsistent across records, including employee count, establishment history, and facility size, so those details should be verified.

Supplier typeThe supplier is identified as a combined, limited company headquartered in Zhejiang, China, engaged in electrical and electronics and offering a broad portfolio of power fittings, cable accessories, switching equipment, and protection products. It also reports export activity and accepts FOB, CIF, and CFR quotation terms, indicating capability to engage in international trade.

CertificationsThe supplier reports ISO 9001:2015 and ISO 14001:2015 certificates, earlier references to ISO 9001 and ISO 14000, production licenses, and product testing by recognized Chinese electric-power inspection and research institutions. These records provide explicit evidence of quality and environmental management certifications and product compliance-related credentials.

R&D capabilityThe supplier reports a dedicated technical research and development center recognized as a provincial township business technical service center and enterprise technical center, together with machinery, physics, chemistry, pressure, partial-discharge, and heat-cycle testing facilities. This directly supports established R&D and technical testing capability.

Production capacityEvidence includes a stated 35,000 m² manufacturing plant, production licenses, advanced laboratory equipment, a broad product portfolio, and testing of electric anchor clamps and related products by multiple power-industry institutions. The records support meaningful manufacturing capability, although company-scale figures differ across slices and should be verified.