H1Z2Z2-K Solar Photovoltaic Cable – AC 1.0/1.0kV (DC 1.5kV)

Product Overview

The H1Z2Z2-K Solar Photovoltaic Cable is a high-performance single-core flexible cable specifically designed for photovoltaic power systems. Rated at AC 1.0/1.0kV and DC 1.5kV, this cable is the industry standard for connecting solar panels, inverters, and distribution equipment in solar energy installations.

Manufactured in strict accordance with EN 50618:2014, the H1Z2Z2-K cable features a tinned copper conductor (Class 5 flexible), double-layer cross-linked halogen-free insulation, and a UV-resistant outer sheath. It is designed for long-term outdoor use in harsh environmental conditions, with an expected service life of 25+ years under normal operating conditions.

Standard: EN 50618:2014
Voltage rating: AC 1.0/1.0kV (U₀/U) – DC 1.5kV (U₀)
Maximum DC voltage: 1.8kV
Number of cores: Single core
Conductor: Tinned copper, Class 5 (flexible) per IEC 60228
Insulation: Cross-linked halogen-free flame retardant (XL-HFFR)
Outer sheath: Cross-linked halogen-free flame retardant (XL-HFFR), UV resistant

Key Features

Applications

The H1Z2Z2-K Solar Photovoltaic Cable is specifically designed for photovoltaic power systems:

1. DC Side of PV Systems

• Panel-to-panel connections – Series connections between solar panels

• String-to-combiner box – Parallel connections from panel strings to DC combiner boxes

• Combiner box to inverter – Main DC feed to the solar inverter

2. AC Side of PV Systems

• Inverter to step-up transformer – Low voltage AC connections

• Transformer to distribution panel – Power distribution connections

• Grid connection – Feed to utility grid or user loads

3. Installation Environments

• Utility-scale solar farms – Large ground-mounted PV plants

• Commercial rooftop systems – Factory, warehouse, and shopping mall installations

• Residential solar systems – Home rooftop PV arrays

• Floating solar farms – Water-resistant performance

• Agrivoltaic systems – Solar panels combined with agriculture

4. Suitable for Extreme Conditions

• Desert environments – High temperature and UV exposure

• Coastal areas – Salt spray and high humidity

• High altitude regions – Extreme temperature differentials

• Cold climates – Arctic and alpine regions (rated to -40°C)

Construction Details

Double-Layer Sheath Design

The H1Z2Z2-K cable features a double-layer sheath construction:

• Insulation layer – Provides electrical isolation and thermal protection

• Separate outer sheath – Offers enhanced mechanical protection and UV resistance

This design is achieved through electron beam (E-beam) cross-linking using advanced equipment such as the Russian radiation cross-linking particle accelerator. This process significantly improves the cable's thermal, mechanical, and chemical properties, making it exceptionally resistant to pressure, bending, tension, impact, and temperature extremes.

Technical Specifications

Electrical Characteristics

Thermal Characteristics

Mechanical Characteristics

Available Conductor Sizes

Other sizes available upon request. Please contact us for full conductor stranding tables.

Performance Characteristics

Chemical and Environmental Resistance

Fire Performance

Service Life

• Design life: 25+ years under normal operating conditions (per Arrhenius Diagram)

• Heat aging: Tested for 20,000 hours at 120°C

• Some manufacturers report service life exceeding 40 years

Standards Compliance

Key Certifications

• TÜV Rheinland Certified – German independent third-party certification

• CPR (Construction Products Regulation) – European fire performance certification

Comparison – H1Z2Z2-K vs Other Solar Cables

*H1Z2Z2-K is the current industry standard for new solar installations, replacing older PV1-F cables in many applications.*

Installation Guidelines

Preparation

1. Inspect the cable for any damage before installation

2. Store cables in a clean, dry area, protected from direct sunlight and moisture

3. Avoid sharp edges during pulling to prevent sheath damage

Bending Radius

Temperature Limits for Installation

• Minimum installation temperature: -25°C

• If ambient temperature is below -25°C, the cable should be stored in a warm environment (>0°C) for at least 24 hours before installation

Termination

• Use connectors designed for photovoltaic systems

• Strip back insulation and sheath together – H1Z2Z2-K supports one-step stripping for faster termination

• Use proper crimping tools – do not use screw connections on Class 5 stranded conductors

• Follow connector manufacturer's recommended crimping force and tooling

Cable Routing

• Avoid sharp bends – maintain minimum bending radius

• Protect from mechanical damage – use conduit or cable trays in high-traffic areas

• Provide adequate support – prevent sagging and stress on connections

• Separate from AC cables – avoid electromagnetic interference where possible

Packaging & Delivery

Available Colors

Red and black sheaths are commonly used for polarity identification in DC circuits (Red = Positive, Black = Negative).

Why Choose Our H1Z2Z2-K Cable?

Frequently Asked Questions (FAQ)

Q: What does H1Z2Z2-K stand for?
A: H1Z2Z2-K is the Harmonized designation under EN 50618:

• H = Harmonized European standard

• 1 = Highest mechanical requirements

• Z2 = Cross-linked halogen-free compound (for insulation)

• Z2 = Cross-linked halogen-free compound (for sheath)

• K = Flexible conductor (Class 5)

Q: What is the voltage rating of H1Z2Z2-K cable?
A: The cable is rated for AC 1.0/1.0kV and DC 1.5kV, with a maximum DC system voltage of 1.8kV.

Q: What is the temperature rating of the cable?
A: The maximum continuous conductor temperature is 120°C, with a short circuit temperature of 250°C. The ambient temperature range is -40°C to +90°C.

Q: What is the expected service life?
A: The cable is designed for 25+ years under normal conditions. Some manufacturers report service life exceeding 40 years.

Q: Is this cable suitable for outdoor use?
A: Yes. The UV-resistant XL-HFFR sheath is specifically designed for permanent outdoor exposure in direct sunlight.

Q: Is the cable halogen-free?
A: Yes. Both the insulation and sheath are halogen-free compounds, meeting IEC 60754-1/2 for zero halogen and low corrosive gas emission.

Q: What is the difference between H1Z2Z2-K and PV1-F?
A: H1Z2Z2-K is the newer standard (EN 50618:2014) with higher voltage rating (1.5kV DC vs 1.0kV DC) for modern high-voltage solar systems.

Q: Do you provide free samples?
A: Yes, we provide free samples of H1Z2Z2-K cable. The customer is only responsible for the shipping cost.

1.You are manufacturer or trader ?

We are a professional ISO certified cable manufacturer with more than 20 years experience.

2.How can I get the quotation of the products ?

Pls send your inquiry to us,our sales manager will offer you within 12 hours.

3.What does your company do regarding quality control?

1) All raw materials we selected are the highest quality. 2) Professional and skillful workers care every details in handling the producing. 3) Quality control department is specially responsible for quality checking in each process.

4.Do you provide OEM project service?

Yes,OEM & ODM order is warmly welcomed.Our engineers will give you the professional suggestions.

5.What is your payment term ?

Our payment term is usually T/T 30% in advanced, the balance before shipping or L/C at sight.