How To Save Lives In High Voltage Substations 11kV/33kV

Published 18 Jul 2022

Thorne & Derrick | Distributed from Stock | Approved Supplier 

CATU CZ kits are wall mounted substation life saving kits that can be used in the event of an electrical incident or accident in MV-HV substations up to 36kV – suitable for electrical intervention in substations up to 36kV and for assisting victims in the event of an electrical hazard or electrocution. Portable life saving kit options are also available for field service vans and engineers.

The installation of one of these Life Saving Rescue Kits can mean the difference between life and death for an electrocution victim and can save lives in high voltage substations. CATU substation life savings kits are in widespread use in the electrical industry – they provide vital protection and reduce the amount of fatalities and serious injuries caused by electrical incidents in and around substations and whilst working on medium voltage cables and electrical equipment installations.

The CZ range of Electrical Safety & Life Saving Intervention Kits are used throughout the wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.

CATU CZ kits

for Medium and High Voltage Substations

The CZ-54 is the most specified substation wall mounted life saving kit – the kit is suitable for up to 24kV and are widely installed during the construction and commissioning of 11kV high voltage substations. Other models are available from Thorne & Derrick and CATU Electrical, including the CATU CZ-55 for high voltage substations up to 36kV, and portable kits such as the CATU CZ-53.

Substation Kit Contents

Wall mounted board with a clear door and security straps to fix the below CATU Electrical components:

• 1 insulating platform 24 kV (phase/ground) CT-7-25/1
• 1 pair of insulating gloves 26,5kV, CG-3-10-NR, class 3 size 10 (IEC 60903:2014).
• 1 telescopic stick 45 kV with rescue hook
• 1 voltage detector (3 to 40kV) with flexible contact antenna fixed on the hook ref. M952170
• 1 pair of insulating boots to protect against the electrical risks of voltage when stepping on the ground MV-135/45 (size 45) or over boots class 3 MV-139-L (depending on ref)
• 1 cable cutter with insulated handles 25kV

Safety instructions on the plastic board, 1 instruction manual, 1 fixing kit with :

• 2 braces
• 6 TR 6×35 screws
• 6 pins
• 6 washers
• 2 plastic clips

How To Save Lives In High Voltage Substations 11kV 33kV | CATU CZ54

Medium & High Voltage Substation Life Saving Kits | CATU CZ53, CZ54 & CZ55

The components are within the plastic board which :

• Protects against dust and shocks
• Avoids borrowing of the electrical safety components
• Protects the safety equipment during transportation
• The substation kit is delivered with all the components already inside the board
• When the substation kit is fixed on the wall, the voltage detector shall be fixed on the stick, and the stick shall be unfolded and placed in the board
• Dimensions: 0,84 m x 0,75 m x 0,27 m
• Weight with components: 21 kg

CATU CZ Kit For HV Substations

Installing the Substation Kit

To protect this kit during transport, all components are placed inside the cabinet. To facilitate wall mounting, we recommend emptying it of its component parts.

• Mount the angle brackets on the wall taking care to match the precise distance of 600 mm between brackets (using two screws per bracket).
• Be sure to mount the cabinet 1510 mm from the floor.
• Place the cabinet onto the angle brackets and clip the two pressure mounted plastic clips into place.
• With the cabinet still on the wall, drill the wall through the two holes located in the base of the cabinet.
• Press the wall plugs in and screw in the two screws after inserting the washers.
• Stow the component parts in the cabinet using the Velcro strips for boots, cable cutter and stool.
• Extend the pole and mount the detector (so that this assembly is immediately operational).
• Clip the pole into the location provided.
• Check that the detector operates properly (by pressing the red button).

Offshore Wind Substations MV & HV Electrical Safety. Image Source: Daniel Paskell/Ørsted

The Risk & Electrical Switchgear Guide | Failure of electrical switchgear can cause death, serious injury and major damage. If you own or operate this type of equipment in industrial or commercial organisations, this book is mainly aimed at you. It should help you to select, use and maintain switchgear safely and reduce the risk of accidents. This guidance is aimed at owners and operators of electrical switchgear in industrial and commercial organisations. It may also be useful to others. It will help managers, engineers and others to understand their responsibilities and duties in the selection, use, operation and maintenance of high-voltage switchgear. Here you can download the HSE Guide to Keeping Electrical Switchgear Safe.

Warning

• To ensure optimum protection, all insulating components must be used (stool, gloves, pole).
• The detector only works with AC power (no detection is possible when using DC installations).
• Before use, always check equipment integrity (especially the gloves).
• Before and after checking to ensure that no voltage is present, always check correct installation operation.
• This check must be performed in contact with bare conductive parts.
• Never cut a number of phases at the same time using the cable cutters (this causes a short circuit hazard at blade level).

Selecting Your Substation Electrical Safety Kits

➡ The following table provides an overview of the operating voltages, ordering references and language versions available for the CATU Electrical range of MV HV Substation Kits: 

Connecting High Voltages & Energising Data Centres | more info

THORNE & DERRICK

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 power 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

Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV

Further Reading

• Keeping Electrical Switchgear Safe Size: 958.64 KB