SD-BD-04-03/Rev.11/30-04-69

Switching power supply

LIGHTING POLE TERMINAL BOARD

ESP Technologies Ltd. is proud to present our latest innovation: the Lighting Pole Terminal Board (LPTB) with an integrated alert system. This solution is designed to enhance safety in public areas and transportation zones, with a strong focus on reducing accident risks and protecting the environment. Our goal is to improve the quality of life for communities by creating safer and more secure surroundings.

Features

Provides effective protection against earth leakage and short circuits
Equipped with an alert system for real-time monitoring, fast detection, and prompt notification of abnormalities
Easy installation and convenient maintenance
High performance with stable and reliable long-term operation

Applications

Our Lighting Pole Terminal Board (LPTB) system is designed for installation across a wide range of environments, including:

Highways: Enhances safety for lighting poles along main roads
Communities: Suitable for use in schools, educational institutions, markets, and public areas
Pedestrian Walkways in Residential Areas: Helps prevent electrical hazards in high-traffic pedestrian zones

In today’s rapidly changing society-where lifestyles are evolving and communities are becoming increasingly dense ESP Technologies Ltd. recognizes the importance of safety and an improved quality of life. We are committed to continuously developing and delivering solutions that effectively meet the needs of modern society.

Connection of Lighting Control System

The street lighting control system helps prevent electric shock to people and animals, provides short-circuit protection for cables and lighting fixtures, and includes a warning system for abnormal conditions. Designed to increase safety or reduce danger and loss caused by electrical leakage currents, over current detection caused by stealthy connection. This system consists of 3 parts as follows.

The Lighting Pole Terminal Board consists of Lighting Pole Terminal Blocks (LTB), a Miniature Circuit Breaker (MCB), and a Lighting Pole Protection Unit with Communication Port (LPPU).
Lighting Control Panel (LCP): One control panel can manage up to 63 lighting poles.
Line Notification System (LNS): A notification system that sends alerts through the LINE application.

Overview of Lighting Pole Terminal Board (LPTB)

Dimension

Assembly

1.Lighting Pole Protection Unit (LPPU)

This device is designed to protect against electrical leakage on metal street lighting poles. It operates based on the Earth Leakage Detection principle, monitoring leakage current from the power line to the LED luminaire.

When leakage current is detected, the relay contacts immediately disconnect the power supply from the lighting circuit. The system then automatically restores the circuit through an automatic reclosing function.

Features

Sends an alarm signal to the Lighting Control Panel (LCP) when electrical leakage is detected
Designed for single-phase systems (230VAC, 50Hz)
Engineered for continuous monitoring and detection of leakage current, with alarm signaling in case of abnormalities
Equipped with LED indicators on the cover for key status display
Utilizes heavy-duty relay contacts rated up to 16A at 250VAC, connected to the lighting circuit
Supports communication via RS 485 with Modbus RTU protocol

Address configuration
To configure the Address and Baud rate, start by opening the LPPU and you will find the circuit board, focus on the Dip switch. From the picture showing Address 2 and Baud rate 9600, you will notice that the address is in binary number. You can change the address as desired. Refer to the table below for the address numbers, the Dip switch can be set to any address from 1 to 63. The total distance of the communication lines should not exceed 1.2 kilometers.

Overview of Lighting Pole Protection Unit (LPPU)

Dimension

2. Two pole Miniature Circuit Breaker (MCB)

The circuit breaker for short circuit protection and overcurrent protection must be a 2-pole type (2 Poles miniature circuit breaker), which will cut the circuit or turn off and on at both poles simultaneously, with an overload protection circuit. It is type C (C-curve) and can withstand short circuit currents up to 10 kiloamperes (10kA)

Wiring connection

3. Lighting Pole Terminals Board (LTB)

Mounts on standard electrical metal rails (DIN rail NS35/7.5, NS35/15, NS32)
The outer shell is an electrical insulator made of a material that does not spreadflames. The material name is polyamide (Polyamide 6.6 UL94-V2 or V0)
Electrical conductors inside the terminal are made of copper alloy, which complies with IEC 60947-7-1.
The LTB is suitable for voltage rating of 230 volts, 1 phase, 2 wires or 400 volts,3 phases, 4 wires (Nominal voltage 230/400 Volt) with a voltage drop on the conductor in the terminal, is less than 3.2 millivolts (Terminal voltage drop <3.2mV) and can withstand momentary voltage surges up to 4.8 kilovolts for a 2-way junction point and 7.3 kilovolts for a 3-way junction point.
The LTB can withstand continuous current flow of 100 amps in the case of using a wire size not exceeding 25 square millimeters and 125 amps when using a wire size of 35 square millimeters. (at a rated voltage of 400 volts).

The connector that will connect to the pole top lamp must be suitable for the size of the connected wire, which is 4 square millimeters or not more than 6 square millimeters. The wire holes of the terminal for the mains wires, must be separated into individual circuit and be suitable for mains wires with dimensions of 25 or 35 square millimeters. Do not run 2 redundant cables in the same hole to connect the main cables with the LTB. The end of the exposed wire (size 25 or 35 square millimetres) must be inserted into the terminal’s cable hole and firmly held with a set screw, which will direct contact with the end of the main cable (without any terminal lug). The opposite cable hole is for connecting a small cable (size 4 square millimetres) to a pole top lamp, both ends of the cable have to attached with the ferrules terminal lug.

Lighting Control Panel (LCP)

One set of street light pole control cabinet, can control up to 63 lighting poles. Includes a photo switch sensor that controls the automatic power supply after the light is dim. The Lighting power contactor, then supplies power to the pole lamp. While the antenna and online communication system are standby during the power supply is working, if there is an abnormality about the electrical current inside the lighting pole. The LCP will report such events via Line Notify System.

LINE Notify is a service that enables users to send messages and notifications to LINE accounts or LINE groups via API or webhook integration. With LINE Notify, your system or application can be configured to automatically send alerts, such as system status notifications or operational updates.

LINE Notify Setup Procedure
How to Register and Generate a Token

Go to LINE Notify and log in with your LINE account. Select “My Page,” then click “Generate Token” to create a new token. Choose whether to send notifications to your personal account or a group, assign a token name, and then generate the token. The generated token will be used for sending messages.

Send Messages via API:
After obtaining the token, you can send notifications through the LINE Notify API by making an HTTP POST request to the URL: https://notify-api.line.me/api/notify The message should be formatted as: message=<your_message>. Include a header with Authorization: Bearer <your token>, using the token generated earlier.