Electrical Insulating Gloves 11kV & 33kV – Price, Classes & Specifications
IS 4770 / IEC 60903 certified rubber insulating gloves from Class 00 to Class 4 for LV, 11kV, 22kV and 33kV work. Batch-tested, supplied with leather protectors and test certificates by Sure Safety.
Electrical insulating gloves are the primary personal barrier between a lineman's hands and a live conductor. Unlike general rubber gloves, they are made from high-dielectric natural or synthetic rubber, manufactured without seams or pinholes, and proof-tested at voltages far above their working rating. Sure Safety supplies electrical insulating gloves for 11kV and 33kV systems to power utilities, substations, transformer manufacturers, EPC contractors and industrial maintenance teams across India.
Electrical Insulating Glove Classes and Voltage Ratings
Gloves are classified under IEC 60903 and IS 4770 by maximum working voltage. Each glove carries a coloured class label so the correct rating can be verified at a glance before work begins.
| Class | Label colour | Max working voltage (AC) | Proof test voltage (AC) | Typical system |
|---|---|---|---|---|
| 00 | Beige | 500 V | 2.5 kV | Control panels |
| 0 | Red | 1 kV | 5 kV | LV distribution, MCC |
| 1 | White | 7.5 kV | 10 kV | 3.3kV / 6.6kV |
| 2 | Yellow | 17 kV | 20 kV | 11kV |
| 3 | Green | 26.5 kV | 30 kV | 22kV |
| 4 | Orange | 36 kV | 40 kV | 33kV |
11kV Electrical Insulating Gloves (Class 2)
For 11kV feeders, ring main units, distribution transformers and HT switchgear, Class 2 gloves rated for 17kV maximum working voltage are the standard specification. They provide a safety margin above the nominal 11kV system voltage while keeping enough flexibility for terminating, testing and switching tasks.
- Length options: 360 mm and 410 mm to protect the wrist and forearm.
- Thickness approximately 2.3–2.5 mm, balancing protection and dexterity.
- Sizes 8 to 11 to ensure a correct fit — loose gloves reduce grip and control.
- Variants with ozone (Category Z) and oil (Category H) resistance for outdoor and transformer work.
33kV Electrical Insulating Gloves (Class 4)
For 33kV lines, substation bays and grid maintenance, Class 4 gloves rated for 36kV are required. They are thicker, longer and stiffer than lower classes, and are always used with leather protector gloves and, in live-line work, with insulated tools and sleeves.
- Length typically 410 mm or longer for full forearm coverage.
- Thickness up to approximately 3.6 mm.
- Used with insulating sleeves, hot sticks and insulated platforms during live-line maintenance.
Electrical Insulating Gloves 11kV 33kV Price – What Affects It
The electrical insulating gloves 11kv 33kv price depends mainly on the class, because higher classes use more rubber and undergo more demanding testing. A 33kV Class 4 pair costs considerably more than an 11kV Class 2 pair. Other factors include:
| Factor | Effect on price |
|---|---|
| Voltage class (Class 2 vs Class 4) | Biggest driver — higher class, higher price |
| Length (360 mm vs 410 mm+) | Longer gloves cost more |
| Special categories (ozone, oil, low-temperature) | Adds to cost |
| Leather over-protectors | Sold separately or as a kit |
| Brand and certification | Imported brands vs Indian certified gloves |
| Quantity / rate contract | Bulk utility orders attract better pricing |
Share the voltage class, size breakup and quantity, and our team will send a quotation with test certificates. Utilities and EPC contractors can request annual rate contracts.
Safe Use, Testing and Storage
- Air test before every use: roll the cuff to trap air and check for leaks, cuts or pinholes.
- Always wear leather protectors over rubber gloves to prevent punctures and abrasion.
- Periodic dielectric retest: IEC 60903 recommends retesting gloves in use, commonly every six months.
- Store correctly: flat, in a glove bag, away from sunlight, heat, ozone (motors, transformers) and sharp objects. Never fold.
- Remove jewellery and check the class label before each job.
Combine gloves with our electrical safety equipment — insulating mats, discharge rods and voltage detectors — and 18kV electrical insulated safety shoes. See also our power plant safety solutions.
Frequently Asked Questions
Which glove class is required for 11kV work?
Class 2 gloves, rated for 17kV maximum working voltage, are generally specified for 11kV systems. Always follow your utility or site electrical safety rules.
Which glove class is required for 33kV work?
Class 4 gloves, rated for 36kV maximum working voltage, are used for 33kV systems along with leather protectors and other insulating equipment.
Why do 33kV gloves cost more than 11kV gloves?
Class 4 gloves are thicker, longer and tested at higher proof voltages, which requires more material and stricter quality control.
Do you provide test certificates?
Yes, gloves are supplied with batch test certificates as per IS 4770 / IEC 60903.
Get Certified 11kV & 33kV Insulating Gloves
Share your quantity, application and delivery location — our team responds with a technical recommendation and a competitive quotation.