ELECTRICAL SAFETY EQUIPMENT AND PPE
Portable protective grounding sets and clamps for overhead lines, substations and cable networks (ASTM F855, IEC 61230)
Country: USA · Model: ASTM F855 / IEC 61230
Single-phase and three-phase cluster portable protective grounding sets with clamps for 25 and 30 mm ball studs and for conductors up to 1780 kcmil. They are made to the current editions of ASTM F855, CAN-ULC-61230 and IEC 61230 and checked in independent laboratories. Grounding is applied on transmission and distribution overhead lines, in switchgear, at generating stations and in underground cable networks to protect the crew on de-energized equipment.
- Standards
- ASTM F855, CAN-ULC-61230, IEC 61230; tested in independent laboratories
- Sets
- single-phase, three-phase cluster, for underground cables (L-shaped grounding adapter)
- Clamps
- for 25/30 mm ball stud, C-type, duckbill, universal, large universal (up to 1780 kcmil), for pipes and bus bars, insulated C-type
- Components
- cables, ferrules (99.9 % copper, tinned), ball studs, 3-way and cluster blocks, plates, temporary grounds, anti-climb guards
Technical specifications
| Standards | ASTM F855, CAN-ULC-61230, IEC 61230; tested in independent laboratories |
|---|---|
| Sets | single-phase, three-phase cluster, for underground cables (L-shaped grounding adapter) |
| Clamps | for 25/30 mm ball stud, C-type, duckbill, universal, large universal (up to 1780 kcmil), for pipes and bus bars, insulated C-type |
| Components | cables, ferrules (99.9 % copper, tinned), ball studs, 3-way and cluster blocks, plates, temporary grounds, anti-climb guards |
| Ferrule protection | sealing tape and heat shrink |
| Documents | registration certificate with traceability; test reports on request |
| Experience | over 25 years |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Ball studs, grounding studs and ferrules are turned from copper of 99.9 % purity, and some parts are made of tinned copper, so the contact is strong and has low resistance. The cable ends with ferrules are covered with sealing tape and a heat-shrink tube, so moisture does not get under the insulation and the set lasts longer. The clamps are put on with a shotgun-type insulating stick, and the lineman works from a safe distance in a more convenient posture. The assemblies are designed for high short-circuit currents. Each set comes with a registration certificate that the user can use to trace its origin. The range was developed together with several utility companies and has been made for more than 25 years; it also includes pole anti-climb guards, sticks, winches, equipment for conductor stringing, and warning cones and tapes.
How to choose
The clamp is selected for the element on which the grounding is applied. For bus bars and equipment with ball studs, clamps for a 25 or 30 mm stud are used, for conductors from #6 to 2″ IPS universal C-type clamps are suitable, and for large sections up to 1780 kcmil, large universal clamps. There are separate models for pipes and bus bars, as well as duckbill and insulated C-type clamps. The rest of the set is assembled from cable of the required section, ferrules, 3-way or cluster blocks and temporary grounds, and the cable section is determined by the calculated short-circuit current at the work site.
Request a price and lead time
Portable protective grounding sets and clamps for overhead lines, substations and cable networks (ASTM F855, IEC 61230). We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
To which standards are these grounding sets made, and are test reports available?
The sets are made to the current editions of ASTM F855, CAN-ULC-61230 and IEC 61230. Test reports from independent laboratories are provided on request.
For which ball stud diameters are clamps available?
There are clamps for a 25 mm and a 30 mm ball stud. The studs themselves are supplied both for thermite welding and with an insulating cap.
How is an underground cable line with separable connectors grounded?
For such networks a set with an L-shaped grounding adapter for the separable connector is provided, and it is complemented by a temporary ground or a plate.
How are the ferrules of the grounding cable protected from moisture?
The joint between the cable and the ferrule is covered with sealing tape and a heat-shrink tube. This way the set lasts longer in cable manholes and at open substations.
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Need a price, lead time or replacement?
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