Live Line Testers

Range of high voltage testing equipment suitable for use in carrying out live line testing. Includes Seaward potential indicators, phasing units, large jaw ammeters with clamps and a range of proving units for evaluating the safety of live line testers. Read More about Live Line Testers
  1. Seaward 423A910 Dual Live Line Tester MKII
    Seaward logo
    5 In Stock
    Free UK Delivery
    Seaward 423A910 Dual Live Line Tester MKII
    (no reviews)
    £334.80 £279.00
    • High-intensity red LED indicators
    • Simple to use
    • Visible, even in direct sunlight
    279 Reward Points
    Price Match Guarantee
    423A910
  2. Seaward 423A912 PH3-LLT MKII Proving Unit & Live Line Tester Kit
    Seaward logo
    Only 1 In Stock
    Free UK Delivery
    Seaward 423A912 PH3-LLT MKII Proving Unit & Live Line Tester Kit
    (no reviews)
    £636.00 £530.00
    • PH3-LLT MKII Proving Unit
    • Dual Live Line Tester MKII
    • Combination kit
    530 Reward Points
    Price Match Guarantee
    423A912
  3. Seaward AGL-5 Air Ground Lighting Tester
    Seaward logo
    Lead Time: 2-3 Weeks
    Free UK Delivery
    Seaward AGL-5 Air Ground Lighting Tester
    (no reviews)
    £1,062.00 £885.00
    • High visibility indicators
    • Limit of 50 AC V
    • Works up to 5000 V
    885 Reward Points
    Price Match Guarantee
    374A910
  4. Metrohm LLT-F0256B High Voltage 11kv Live Line Tester
    Metrohm logo
    2 In Stock
    Free UK Delivery
    Metrohm LLT-F0256B High Voltage 11kv Live Line Tester
    (no reviews)
    £1,197.90 £998.25
    • Perform live high-voltage measurements and positive phase tests on overhead lines, in substations and within switchgear compartments
    • Can perform the above tests in accordance with IEC1243 Part 2 specifications
    • Results are indicated on the 240°-rotatable analogue meter 
    998 Reward Points
    Price Match Guarantee
    LLT-F0256B
  5. Megger Detex Voltage Detector - Range Between 2.3 to 550kV
    Megger logo
    Free UK Delivery
    Megger Detex Voltage Detector - Range Between 2.3 to 550kV
    (no reviews)
    Call for Pricing
    • IEC conformance
    • Continuous monitoring
    • Seven models available
    We require additional information before you purchase this product.
    DETEX-514XXX-X
  6. HD Electric AT-100 Lightning Arrester & Leakage Tester – Choice of Kit
    HD Electric Company logo
    Free UK Delivery
    HD Electric AT-100 Lightning Arrester & Leakage Tester – Choice of Kit
    (no reviews)
    Call for Pricing
    • Detect deteriorating and damaged lightning arresters  
    • Can test systems between 4kV and 25kV
    • Able to test systems up to 69kV using R-69 Add-on Resistor Sticks
    We require additional information before you purchase this product.
    HD-AT-100-X
  7. Metrohm LLT-3.3kV High Voltage Live Line Tester - Full Kit
    Metrohm logo
    Only 1 In Stock
    Free UK Delivery
    Metrohm LLT-3.3kV High Voltage Live Line Tester - Full Kit
    (no reviews)
    £4,348.74 £3,623.95
    • Phasing rod and voltage rod included
    • Extension rods and adaptors also included
    • For use on HV systems to 3.3kV
    3623 Reward Points
    Price Match Guarantee
    LLT-3.3KVKIT
  8. Metrohm LLT-6.6kV High Voltage Live Line Tester - Full Kit
    Metrohm logo
    Free UK Delivery
    Metrohm LLT-6.6kV High Voltage Live Line Tester - Full Kit
    (no reviews)
    £4,348.74 £3,623.95
    • Live line tester and phasing rods included
    • Also comes with extension rods and adaptors
    • Proving unit also supplied
    3623 Reward Points
    Price Match Guarantee
    LLT-6.6KVKIT
  9. Metrohm LLT-11KVKIT High Voltage Live Line Tester - Full Kit
    Metrohm logo
    Free UK Delivery
    Metrohm LLT-11KVKIT High Voltage Live Line Tester - Full Kit
    (no reviews)
    £4,348.74 £3,623.95
    • Works with HV systems up to 11kV
    • Phasing rod and standard voltage tester included
    • Also comes with bent end adaptors and extension rods for more difficult applications
    3623 Reward Points
    Price Match Guarantee
    LLT-11KVKIT
  10. Metrohm LLT-13.8kV High Voltage Live Line Tester - Full Kit
    Metrohm logo
    Only 1 In Stock
    Free UK Delivery
    Metrohm LLT-13.8kV High Voltage Live Line Tester - Full Kit
    (no reviews)
    £4,348.74 £3,623.95
    • Phasing and voltage testing rods
    • Test overhead lines, substations and switchgear
    • 13.8kV operation
    3623 Reward Points
    Price Match Guarantee
    LLT-13.8KVKIT
  11. Metrohm LLT-33kV High Voltage Live Line Tester - Full Kit
    Metrohm logo
    Only 1 In Stock
    Free UK Delivery
    Metrohm LLT-33kV High Voltage Live Line Tester - Full Kit
    (no reviews)
    £4,566.54 £3,805.45
    • Comprehensive live line testing kit
    • Includes live line tester and phasing rod
    • Also comes with proving unit, adaptors and extension rods
    3805 Reward Points
    Price Match Guarantee
    LLT-33KVKIT

Showing 1 - 11 of 11 products

Filters
Shop By:
In-Stock Only
By Price
279.00 3805.45
11 Products

About Live Line Testers

High voltage testers include live line testing, which involves the testing of high-voltage overhead AC lines and switchgear with an insulated pole attached to an indicator. The indicator can be either analogue or digital and with audible and visual indicators of voltage presence. Live line testers are mainly used by the rail and utility industries around the world and each has its standards.

The main manufacturers of these poles are companies such as Seaward, HVI, Metrohm, and Edgcumbe in the UK. The length of the poles generally depends upon the voltage under test and they generally come in rated voltages such as 11kV, (33Kv more commonly) but can also be up to 132Kv or as high as 200Kv. The poles are usually made of composite material and there are also foam-filled types.

The poles should be checked annually for damage and cleaned with a polymer cleaning kit. They should not be used in damp conditions as this could affect the insulation properties of the rods.

International Enquiry