Application and Description：
These cables are used for internal wiring of switchboards and distribution boards at AC voltages up to 1000 V or
DC voltages up to 750 V. They are generally installed in ducts and are used for internal wiring of equipment with
an operating temperature of 90°C. They are suitable for use in public places (such as government buildings, etc.)
where smoke and toxic gases may cause threats to life and damage to equipment. This cable does not produce
corrosive gases when burned, which is particularly important for electrical equipment.
Standards and certifications：
Cable construction：
- Solid bare copper single strand conductor, compliant with IEC 60228 Cl-1 (H05Z-U / H07Z-U)
- Stranded bare copper conductor, compliant with IEC 60228 Cl-2 (H05Z-R)
- Cross-linked polyolefin EI5 insulation
- Core color coding compliant with VDE-0293
- LSOH - Low Smoke Zero Halogen
Technical characteristics：
- Working voltage: 300/500v (H05Z-U), 450/750v (H07Z-U / H07Z-R)
- Test voltage: 2500 V
- Dynamic bending radius: 15 x Ø
- Static bending radius: 10 x Ø
- Operating temperature in application: +5º C to +90º C
- Flame retardant: IEC 60332.1
- Insulation resistance: 10 MΩ x km
Cable parameters:
|
Number of cores x conductor cross-sectional area # x mm² |
Nominal insulation thickness mm |
Nominal outer diameter mm |
Nominal copper weight kg/km |
Nominal cable weight kg/km |
|
H07Z-U |
||||
|
1 x 1.5 |
0.7 |
2.8 |
14.4 |
20 |
|
1 x 2.5 |
0.8 |
3.3 |
24 |
30 |
|
1 x 4 |
0.8 |
3.8 |
38 |
45 |
|
1 x 6 |
0.8 |
4.3 |
58 |
65 |
|
1 x 10 |
1.0 |
5.5 |
96 |
105 |
Product Advantages
Structural and Design Strengths of H07Z-R Cable
The H07Z-R cable’s structural design integrates cross-linked polyolefin insulation, providing superior mechanical stability and thermal resistance. As a well-established switchboard wiring cable, it features stranded bare copper conductors that allow for enhanced flexibility and robustness, optimizing conduit and duct installation processes. Its Low Smoke Zero Halogen composition ensures reduced corrosive gas emission, aligning with fire protection system designs and enhancing overall safety system synergy. Manufactured to exacting standards by an experienced H07Z-R cable manufacturer, the cable’s modular core color coding and dimensional consistency facilitate seamless integration into complex electrical assemblies, supporting efficient system layouts and maintenance.
Performance Advantages and Usability Features
This low smoke zero halogen cable delivers dependable electrical performance with excellent insulation resistance, maintaining signal integrity and minimizing fault risks under operational stresses. Adapted for operation within a broad temperature spectrum, it ensures sustained functionality in varied indoor environments. The product’s flame retardance improves user safety during fire emergencies, reducing hazardous smoke and toxic gas exposure to personnel and equipment. Our position as a reliable LSZH wire supplier assures clients of consistent product quality and availability, enabling smooth project execution and long-term reliability, thus supporting engineers and procurement managers in maximizing return on investment while meeting stringent compliance criteria.
Enhanced Safety in Public Building Electrical Installations
In public and institutional buildings such as government offices and educational facilities, electrical installations demand wiring that limits hazardous emissions in case of fire. The H07Z-R cable serves as a critical component for internal switchboard wiring cable applications in these environments, providing low smoke output and zero halogen content to safeguard occupants and sensitive equipment. Its compliance with IEC 60332.1 fire retardant standards supports conformity with building codes mandating smoke emission reductions. Integrated within duct systems, this cable supports reliable power distribution and control, aligning with facility management requirements for safety and operational continuity throughout complex infrastructure networks.
Industrial Control and Power Circuit Wiring Applications
In industrial environments requiring robust electrical distribution, the H07Z-R cable is utilized extensively as a switchboard wiring cable for control panels and power circuits operating under moderate temperature conditions. Its mechanical toughness, coupled with insulation resistance and flame retardance, supports resilient performance under demanding industrial workloads. The low smoke zero halogen construction minimizes post-fire cleanup and potential equipment damage, facilitating faster recovery and reduced downtime. Electrical engineers rely on this cable’s adherence to international standards to design and implement safe, efficient internal wiring systems that integrate with broader industrial control frameworks, ensuring consistent operation and regulatory compliance.
What materials are used in your H07Z-R cables to ensure safety?
Our H07Z-R cable manufacturer uses stranded bare copper conductors combined with cross-linked polyolefin insulation. The cable's Low Smoke Zero Halogen (LSOH) composition produces minimal smoke and no corrosive gases, meeting strict flame retardant standards for safe electrical installations.
Can you provide custom specifications for Low Smoke Zero Halogen cable?
Yes, we offer tailored solutions to meet specific project requirements. As a trusted LSZH wire supplier, we accommodate various conductor sizes and insulation thicknesses, ensuring the low smoke zero halogen cable meets your installation needs and complies with industry standards.
Are H07Z-R cables suitable for switchboard wiring in commercial buildings?
Absolutely. The switchboard wiring cable H07Z-R is designed for internal wiring of switchboards and distribution boards. Its flame retardant and LSOH properties make it ideal for commercial environments where fire safety and low smoke emissions are critical.
How do you manage shipping and delivery for bulk orders of H07Z-R cables?
We manage logistics professionally to ensure timely delivery for all orders. Our robust supply chain supports large volume shipments of switchboard wiring cable and other products, maintaining quality from production to installation site, backed by expert customer support throughout the process.
