33kV Fusibles with Load Break – Porcelain High Voltage Fuse Cutout for Outdoor Distribution Protection

33kv Fusibles with Load Break-porcelain

The 33kV Fusibles with Load Break – Porcelain Type is designed for high-voltage outdoor electrical distribution systems, providing reliable overcurrent and fault protection. With load break functionality, it allows safe disconnection and reconnection of live circuits during maintenance. The porcelain insulator provides excellent mechanical strength, weather resistance, and electrical insulation stability, making it suitable for long-term outdoor exposure in harsh climates.

Product Advantages

• Load Break Capability

• High Mechanical Strength Porcelain Insulator

• Reliable Fault Isolation & System Protection

• UV, Moisture & Corrosion Resistant

• Suitable for Harsh Climatic Conditions

• Long Service Life & Low Maintenance

Application Scenarios & How to Apply

The 33kV Fusibles with Load Break – Porcelain Type is widely used in medium and high-voltage overhead networks, including:

• Transformer protection points

• Feeder line sectionalizing

• Rural and urban power distribution networks

• Outdoor substation installations

• Renewable energy connection points (solar, wind, hydro)

How to Use:

Mount the porcelain fuse cutout on a pole arm or bracket. Connect primary line conductors and ground system according to electrical schematics. Insert the correct amp-rated fuse link. During switching operations, use a proper load break hook stick. Verify mechanical locking and electrical contact before energizing the system.

Quality Assurance

• Manufactured under IEC/IEEE/ANSI utility standards

• 100% tested for dielectric strength, load-break performance, sealing, and mechanical durability

• Weatherproof, impact-resistant porcelain material

• Long-term outdoor reliability validated through salt-spray and temperature-cycling tests

Parameter

Rated voltage(KV)	Rated current(A)	Rated interrupting current(KA)	Lightning impulse withstand voltage to ground (BIL KV)	Minimum power frequency withstand dry voltage to ground (KV)	Minimum creepage distance(mm)
11-15	100/200	12	125	50	320
24-27	100/200	12	150	65	470
33-38	100/200	8	170	70	660
33-38	100/200	8	170	70	900

FAQ

Q1: Can this fuse cutout operate under live grid conditions?

A1: Yes, it supports load break operation using an insulated hook stick.

Q2: Does the porcelain material withstand extreme weather?

A2: Yes, it is UV-resistant, moisture-resistant and suitable for desert, coastal and freezing climates.

Q3: Can different fuse ratings be installed?

A3: Yes, fuse links are replaceable based on system load and protection requirements.