Inspection in Practice
Process control, inspection and verification footage.
10kV / Arrester
Drop-Out Arrester Insulation Protective Cover
Product size300 × 75 × 145 mm
Visible protection for critical power connections
DIANLETE
Protection you can inspect.
Transparent 10kV insulation covers engineered for live-line inspection, phase identification and safer installation.
SGS Tested. Proven Performance.
34.33kVPower-frequency withstand voltage
137°CContinuous operating temperature
750°CShort-circuit withstand temperature
TEST REPORT: GZMR250400993701
Engineered to Fit. Color-Coded for Safety.
01Photo / Drawing
02Fit Analysis
03Color-Coded Design
04Sample
05Production
Three-Phase System (3P)
L1 / Phase A
L2 / Phase B
L3 / Phase C
Three-Phase Four-Wire System (3P4W)
L1 / Phase A
L2 / Phase B
L3 / Phase C
N / Neutral
Color-coded installation enables fast visual identification and helps reduce phase identification and operating risk.
PDF Product Portfolio
Visible Insulation Covers for Critical 10kV Connections.
Product names, dimensions and technical visuals below are taken directly from the original DIANLETE electronic catalog and can be updated as product documentation evolves.
10kV / Transformer
Transformer High-Voltage Side Insulation Protective Cover
Product size150 × 115 × 85 mm
10kV / Fuse Upper
Drop-Out Fuse Upper-Terminal Insulation Protective Cover
Product size325 × 155 × 145 mm
10kV / Fuse Lower
Drop-Out Fuse Lower-Terminal Insulation Protective Cover
Product size325 × 135 × 130 mm
10kV / Composite Arrester
Composite Arrester Insulation Protective Cover
Product size135 × 75 × 77 mm
10kV / ZW-32 Switch
ZW-32 Circuit Breaker Switch Insulation Protective Cover
Product size300 × 75 × 80/100 mm
Four primary product systems are shown on the homepage. Open the product directory for every available cover, dimension and purchasing route.
View All Products →More Products from the Original PDF
Pages 11-17 · Select any page to inspect the original dimensions and diagrams.
ZW-32 Circuit Breaker Switch Mid-Terminal Insulation Protective Cover
280 × 75 × 85/100 mm
Voltage Transformer (PT) Insulation Protective Cover
155 × 60 × 105 mm
Transformer Low-Voltage Side Insulation Protective Cover
190 × 190 × 95 mm
Cable Terminal Insulation Protective Cover
265 × 70 × 70 mm
Porcelain Lightning Arrester Insulation Protective Cover
150 × 80 × 100 mm
Disconnector Switch Insulation Protective Cover
825 × 260 × 15 mm
Overhead Bare Conductor Insulation Protective Cover
500 × 500 × Ø35 mmRetail prices, stock status and payment checkout will be activated after the final SKU, currency and selling price list is confirmed. Product specifications remain subject to final catalog and engineering verification.
SGS Tested Material Performance
Open the Full Test Report →
Technical evidence before product claims.
The submitted sample is identified in the SGS report as an “Insulated protective cover for live work.” The tested polycarbonate material provides a documented technical basis for DIANLETE visible insulation protection solutions.
34.33kVDielectric breakdown voltage
137°CDeflection temperature under load
63.6MPaTensile strength
750°CGlow-wire flammability test
Core Technology
Visibility engineered into protection.
Traditional opaque covers can conceal critical connection points. DIANLETE visible insulation protective covers keep installation position, phase identification and equipment condition easier to observe while providing targeted protection around exposed interfaces.
CLEAR VISUAL ACCESS
CUSTOM FIT GEOMETRY
Visible Insulation System
Start a Technical Inquiry →
Visible installation. Precise protection.
Designed around real 10kV equipment geometry, each transparent cover balances insulation performance, live-line work requirements, installation efficiency and visual inspection access.
01
Transparent structureCritical interfaces remain visible during routine inspection.
02
Live-line operation focusedProtective structures developed for demanding energized equipment environments.
03
Phase-error prevention by designRed, yellow and green identifiers correspond to L1/L2/L3 or A/B/C for faster, more consistent installation.
04
Factory-controlled PC formulationMaterial and structure can be adapted for high UV exposure, heat, cold and project-specific conditions.
Color-Coded Visual Installation
Three-phase or three-phase four-wire identification at a glance.
Color-separated components make each phase easier to distinguish during installation and inspection. Combined with a transparent protective structure, technicians can confirm position and phase more directly, helping reduce identification errors and improve operational safety.
01
Easier phase recognition
Distinct colors make three-phase and three-phase four-wire groups faster to identify.
02
More visible installation
Transparent covers keep internal connection and fitting position observable.
03
Safer inspection workflow
Clear visual confirmation supports more consistent installation and maintenance checks.
PHASE IDENTIFICATION CONFIGURATIONS
3-PHASE
4-PHASE
Color configuration can be matched to local utility standards and project requirements.
Field Application
Visible protection designed around energized equipment.
Survey & requirement review
Match equipment type, connection geometry and operational needs.
Engineering & prototyping
Develop fit, visibility and fastening details for the application.
Production & delivery
Scalable manufacturing for project orders and distributor supply.
Global Wildlife Protection
Animal contact protection for exposed power equipment.
DIANLETE develops equipment-specific insulation covers and wildlife protection guards intended to help limit access to energized interfaces and reduce animal contact-related short-circuit, flashover and outage risks across global utility environments.
Squirrel guards for electrical equipment
Custom-fit transparent covers for transformer terminals, arresters, switches and other exposed interfaces where squirrels and climbing animals may create contact paths.
Bird protection for substations and overhead equipment
Protective cover geometry can be evaluated for bird contact, nesting exposure and wildlife access around pole-top and substation connection points.
Equipment-specific animal protection covers
OEM and ODM development for local species, equipment dimensions, voltage class, UV exposure, temperature and project installation requirements worldwide.
10kV
15kV
15kV
Wildlife protection is engineered by equipment and project.
Submit equipment photos or drawings so cover geometry, clearances, fastening, material and environmental conditions can be reviewed. Voltage class and applicable certification requirements are confirmed separately for each market and project.
Technical Resources
Factory, certificates and project evidence.
Real Manufacturing Site
From factory campus to precision production.
DIANLETE integrates product development, mold processing, injection production and manufacturing in Foshan. Select any image to inspect the original factory photograph.
01 / CONTROLFactory-owned development
Product geometry, tooling and production adjustments remain under direct manufacturing control.
02 / MATERIALApplication-specific PC formulation
Transparent rigid PC solutions can be evaluated for intense UV exposure, high heat or cold-region applications.
03 / DELIVERYOEM and ODM execution
From equipment review and prototyping to repeatable production for projects, distributors and standard products.
Factory Video Journal
Manufacturing evidence, updated in motion.
Production runs, tooling development, quality checks and field installations will be published as new DIANLETE footage becomes available, giving project teams a clearer view of how products move from engineering to delivery.
Featured Factory Update
Inside DIANLETE Production
A replaceable factory media module for production runs, equipment updates and manufacturing capability.
Quality & Testing
Laboratory & Tooling
Engineering in Motion
Material evaluation, tooling and equipment updates.
Original factory footage · DIANLETE manufacturing siteProduction / Quality / Installation / Project Updates
Installation Demonstration
Field installation, framed for every screen.
Landscape demonstrations present the full equipment and installation sequence, while vertical clips focus on fastening details, phase identification and close-range inspection for mobile viewing.
16:9 Landscape
Complete Installation Sequence
Equipment Review to Visible Installation
Landscape format for reviewing equipment geometry, installation position and the completed visible protection system.
Live-Line Installation
Insulated-Pole Cover Placement
Close-range vertical demonstration of protective-cover placement using an insulated operating pole.
Field Procedure
Overhead Equipment Installation
Field-oriented vertical footage for distributor training, mobile review and installation reference.
Landscape and vertical formats support distributor training, field installation review and mobile technical sharing across project teams.
Credential Library
Documented systems. Patented products. Verifiable reports.
The library below uses the original documents supplied by DIANLETE. Switch categories to inspect management certificates, SGS reports, product patents and enterprise credit records. Select any document to open a larger view.
Product Test Report
Insulated protective cover for live work. Report No. GZMR250400993701.
Open English PDFProduct Test Report
Original Chinese test report supplied for technical and project review.
Open Chinese PDF
3 MANAGEMENT SYSTEMS3 ANNUAL CONFIRMATIONS2 SGS REPORTS16 PRODUCT PATENTS10 CREDIT RECORDS
Procurement & Service
Commercial terms built for trials, repeat orders and engineered projects.
DIANLETE separates standard retail purchases from volume and custom quotations, so buyers receive pricing and support appropriate to the actual product, quantity and technical risk.
01
Sample & trial orders
Standard retail pricing supports product evaluation and small-quantity procurement.
02
Repeat & volume orders
Quantity-based quotations are available for repeat buyers, distributors and project purchasing.
03
Project & OEM/ODM pricing
Custom geometry, materials, color coding, packaging, testing and delivery terms are quoted as one project package.
Discounts are confirmed in the formal quotation and are not automatically cumulative with other promotions.
01
Order traceability
Model, quantity and agreed technical requirements are checked against the confirmed order record.
02
Installation & issue review
Photos, video and equipment information are reviewed for installation guidance or verified quality and fit concerns.
03
Documented resolution
Replacement, rework, credit or another agreed solution is determined from the evidence and confirmed order terms.
For transport damage or shortages, retain the packaging and submit order details and visual evidence promptly after delivery.
Technical FAQ
Visible insulation protection, explained.
What is a visible insulation protective cover?
It uses a transparent protective structure around exposed power equipment connection points, allowing installation position, phase identification and equipment condition to remain observable.
Can DIANLETE covers support live-line operation requirements?
DIANLETE develops protective covers for live-work applications. The submitted PC sample is identified in SGS report GZMR250400993701 as an insulated protective cover for live work. Final selection must match the equipment and project requirements.
Why use three-phase or three-phase four-wire color-coded components?
Color separation makes each phase easier to recognize during installation and inspection. Together with a transparent cover, it supports clearer visual confirmation and helps reduce identification errors.
Can insulation covers help protect power equipment from squirrels, birds and small animals?
Equipment-specific insulation and wildlife protection covers can help limit animal access to exposed connection points and reduce contact-related short-circuit, flashover and outage risks. Product geometry, clearances and material selection must be reviewed for the actual equipment, wildlife exposure and environment.
Are OEM and ODM insulation covers available?
Yes. Upload equipment photos, dimensions or drawings through the customization form. DIANLETE can evaluate cover geometry, fitting position, fastening structure, phase identification and material requirements.
Can DIANLETE develop 15kV covers for North America?
Custom 15kV solutions can be evaluated against the equipment and project requirements. Applicable North American certification standards and testing requirements are discussed and agreed separately before any compliance claim is made.
Does DIANLETE offer volume discounts?
Yes. Sample and small-quantity orders use retail or trial-order pricing. Repeat, distributor and project orders receive quantity-based quotations according to model, quantity, packaging, customization, testing and delivery terms.
What after-sales support is available?
DIANLETE provides order traceability, installation guidance, arrival inspection support and engineering review for verified quality or fit issues. Keep the packaging and submit the order details, photos and video evidence so the issue can be assessed against the confirmed quotation, drawings and order terms.
Custom Engineering Request
Upload the equipment. Start with technical facts.
Send field photos, dimensions or engineering drawings. DIANLETE will review fit, voltage class, phase identification, installation method and environmental conditions before recommending a standard product or custom development path.
01
Upload reference filesEquipment photos, PDF drawings, DWG or DXF files.
02
Engineering reviewGeometry, material, environment and installation requirements.
03
Technical responseRecommended solution, clarification points and quotation path.
