Use of Pfisterer KP-Test 5HL Live Line Testers & Indicators

Published 16 Feb 2024

Use of Pfisterer KP-Test 5HL Live Line Testers & Indicators

Voltage Detectors Distributed from Stock | Approved Supplier | UK & Export Sales

Pfisterer Voltage Detectors

Pfisterer KP-Test 5HL is a capacitive voltage detector—the universal Medium & High Voltage Detection & Live Line Tester (LLT) product range for nominal voltages from 110kV to 220kV. The voltage detector presents the operating voltage when brought into contact with the MV HV overhead lines and conductors.

The Pfisterer KP-Test 5HL voltage detector provides a high level of user-friendliness and user safety – KP-Test 5HL is designed and type-tested to Standard IEC 61243-1.

Other versions of the HV high voltage detector with deviating voltages, ranges of nominal voltages, frequencies, and languages are available on request.

KP-Test 5 range of instruments from Pfisterer can detect voltage level 1 to 420 kV AC.

Pfisterer KP-Test 5HL

KP-Test 5HL Live Line Indicators

The KP-Test 5HL is one of several certified live line indicators (LLI’s) that have been used to test 25kV conductors to ensure that they have been disconnected from the power source prior to connecting to earth or testing before touching. LLIs are safety devices on which human lives may depend. These should be handled with extreme caution and protected against damage.

To discharge any induced voltages, field equipment earthing, also known as portable earthing, may be necessary when employing voltage detectors to determine whether operating voltages are present on MV-HV power cables or overhead lines. This is because the equipment may be operating close to live conductors.

KP-Test 5HL is limited to use on the lowest conductor of the objects being tested, such as the bottom autotransformer feeder (ATF) or contact wire. Only those with a valid competency (authorised person or nominated person) and who have attended a familiarisation briefing should use it.

Benefits of using Voltage Detectors

Furthermore, voltage detectors are crucial instruments made to improve electrical safety in a range of settings. These tools are essential for averting mishaps, lowering the risk of casualties, and safeguarding infrastructure. An extended explanation of the features stated is provided below:

• Weather Resistance: They are designed to withstand various environmental conditions, including rain. This allows operators to use them in diverse weather conditions without compromising their functionality. This feature ensures that the detectors remain operational even when exposed to rain, providing continuous safety in outdoor settings.
• Personnel Safety: Voltage detectors significantly reduce the risk of serious injury to personnel working with electrical systems. Their ability to detect live voltage without physical contact ensures that operators can assess the presence of electrical energy safely. This minimizes the chances of electrical accidents, protecting personnel from electric shocks and other potential hazards associated with working in proximity to live electrical components.
• Infrastructure Protection: Voltage detectors play a vital role in safeguarding electrical infrastructure. By providing a means to detect live electrical components, they help prevent accidental damage to critical equipment and wiring. This protection extends the lifespan of electrical systems, reduces the frequency of repairs, and contributes to the overall reliability of the infrastructure.
• Quick Drying: After being exposed to rain or wet conditions, voltage detectors are designed to dry quickly once not in use. This feature is essential for maintaining the reliability of the device. The rapid drying capability ensures that the detector can be stored or reused promptly after exposure to moisture, minimizing downtime and allowing for efficient use in dynamic work environments.

THORNE & DERRICK

Thorne & Derrick stock and distribute PFISTERER CONNEX Connectors for medium / high voltage cable connection and termination to electrical systems up to 33kV – we provide competitive prices for PFISTERER CONNEX connectors used to terminate and connect polymeric insulated MV-HV cables into gas insulated switchgear and electrical equipment from extensive UK stocks.

Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage cable systems:

• Slip-on Cable Terminations
• Cold-shrink Cable Terminations
• Heat-shrink Cable Terminations
• Cable Joints – Heat & Cold-shrink
• Separable Connectors (Euromold)
• Surge Arresters & Switchgear/Transformer Bushings

Voltage Detectors | Phase Comparators | Insulating Poles | Portable Earthing | LV MV HV

Further Reading

• Pfisterer KP-Test-5HL Voltage Detector Data Sheet Size: 551.95 KB