ELECTRICAL SAFETY EQUIPMENT
Electrical lockout procedures must be followed and safe isolation from supply voltage must be verified before work can commence on electrical equipment or installations. By locking-out, testing for voltage, earthing and barricading, electrical equipment and installations can be made safe to work on.
Voltage Detectors to test for the presence or absence of supply voltage in substations, switchgear and overhead line installations. Complying with the requirements of IEC/SANS 61243-1, the Voltage Detector PHE III series can be used in wet weather conditions for voltages up to 132kV/50Hz and the CC-245 series for voltages up to 765kV/50Hz. The voltage detectors provide the user with visual and acoustic indication when supply voltage is present.
Non-Contact Voltage Detectors to test for the presence or absence of supply voltage in substations, switchgear and overhead line installations. The ASP and HSA series voltage detectors can be used in wet weather conditions for voltages from 1kV up 420kV/50Hz and provides the user with visual and acoustic indication when supply voltage is present.
Single-Pole and Two-Pole Phase Comparators to test the in-phase condition of three-phase electrical systems. Complying with the requirements of IEC/SANS 61481, the resistive type PHV Two-Pole Phase Comparator consist of a single basic test unit with interchangeable test prods that are selected for the desired voltage and application. The test prods are available in standard, compact and 90° designs and are colour coded for easy selection and identification. The design of the PHV I Single-Pole Phase Comparator is similar to that of the capacitive voltage detectors and uses an electronic microprocessor to evaluate and indicate out-of-phase conditions.
Voltage Detecting Systems (VDS) – Metal clad/enclosed switchgear is widely used in the field of switchgear construction. In these types of installation, it is often not possible to use conventional voltage detectors to test for the presence or absence of supply voltage. The Voltage Detecting Systems, in accordance with IEC/SANS 61243-5, are supplied as individual components consisting of capacitive post type insulators to be installed in the switchgear panels, passive and active voltage detectors to verify safe isolation from supply voltage and phase comparators to test for in-phase conditions.
Operating and Switching Rods viz:
• Fuse Tongs for the removal of high voltage fuses,
• Earthing Rods for the installation of portable earthing equipment on busbar and overhead lines,
• Discharge Rods to discharge static charges from cables and capacitors,
• Rescue Rods to remove personnel from the live working zone in the event of an electrical accident, and
• Switching Rods to perform switching operations on electrical equipment and to switch links and drop-out fuses on overhead lines.
Electrical Lockout is an integral part of electrical safety to prevent any operation of equipment by unauthorised persons. Lockout systems consisting of colour coded padlocks, multiple lockers, padlock stations and lockout managing systems are supplied to prevent unauthorised switching of electrical equipment and installations.
Portable Earthing and Short-Circuiting Equipment – Earthing and short-circuiting is a key element of electrical lockout procedures to ensure that electrical equipment will stay de-energised in case of the accidental reconnection of supply voltage or due to induced voltages. Portable earthing and short-circuiting devices that comply with the requirements of IEC/SANS 61230 are supplied as complete earthing and short-circuiting devices or as single components consisting of phase clamps, earth clamps, fixed phase and earth connecting ball points and fixed phase connection points. The earthing and short-circuiting devices are individually configured and supplied to customer requirements.