Surge protection & earthing
Surge protection for signals, data networks and power; earthing and tank lightning protection.
Overview
Lightning-induced surges are a leading cause of instrument and control failures at plants and gas stations. VTL has upgraded surge protection for PV GAS, Long Son, Nghi Son, Hai Linh LNG and more.
What VTL provides
- MTL SD, TP48 and IOP signal protectors for 4–20 mA, HART and fieldbus loops
- MTL SLP, ZoneDefender PRO and Weidmüller VARITECTOR power protection
- MLDT surge protector testers
- Lytech RBC retractable bypass conductors for floating-roof tanks
- Survey and upgrade of lightning protection at gas stations and fuel depots
Contact VTL engineers for a site survey and a tailored proposal.
Related products
Eaton MTL TP48 surge protector for field transmitters
MTL TP48 protects field-mounted transmitters from lightning surges: screws into a spare conduit entry, self-restoring, Ex ia/Ex d versions with ATEX, IECEx, FM, CSA.
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Eaton MTL SD series signal surge protectors
MTL SD series: 7 mm slim surge protectors for signal and data lines, 20 kA surge rating, ATEX/IECEx – for 4–20 mA, RS485, Ethernet and HART.
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Eaton MTL SD Modular (SDM) surge protectors
MTL SD Modular (SDM): pluggable 7 mm signal surge protectors – replace without disturbing wiring, make-before-break, optional LED and fuse.
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Eaton MTL IOP digital & analogue I/O surge protector
MTL IOP: economical surge protection for digital and analogue I/O – 20 kA hybrid circuit, 6 mm per loop, removable terminals, Ex ia and Ex n approvals.
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Eaton MTL SD16R signal surge protector
Eaton MTL SD16R: 7 mm data surge protector for RS232/RS485 and 2-wire loops, 50 MHz bandwidth, 20 kA surge rating, ATEX/IECEx.
View details →Eaton MTL MLDT28500 data surge tester
MLDT28500: portable tester for signal surge protectors – continuity and leakage tests at 7/16/32/55 V with Pass/Fail LED indication.
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Weidmüller VARITECTOR surge protection
Weidmüller VARITECTOR surge protection for energy systems (75–1,500 V), instrumentation & control and data interfaces; PU AC S-line only 18 mm per pole.
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Eaton MTL ZoneDefender PRO surge protectors
ZoneDefender PRO: Type 2 AC power surge protection, 80/100/120 kA per phase, 4-mode protection, EMI/RFI filtering, LED and alarm contacts, NEMA 4X/IP66 enclosure.
View details →Delivered projects
Weidmüller combiner boxes for TTC solar farms
Weidmüller combiner boxes for three TTC solar farms: Krong Pa 49 MW, Tay Ninh 01 68 MW and Tay Ninh 02 50 MW.
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Signal surge protection for the PAGA system – Nghi Son refinery
Eaton MTL SD150X surge protectors for the PAGA amplifiers and multichannel interfaces.
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Surge protection upgrade for gas stations – PV GAS Services
Upgrade of surge protection for control equipment at PV GAS gas and valve stations with Eaton MTL SD and TP protectors.
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Surge protection for Hai Linh LNG terminal – Cai Mep
Eaton MTL SD surge protectors for control signals at the Hai Linh LNG receiving and regasification terminal.
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MTL5500 isolators and SPDs for Yokogawa DCS – Thi Vai LNG terminal
MTL5500 IS isolators and SD surge protectors for the Yokogawa DCS at the Thi Vai LNG terminal.
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Hazardous-area signal surge protection – Long Son Petrochemicals
Eaton MTL SD and TP signal surge protection for hazardous-area control equipment at Long Son Petrochemicals, 2022–2023.
View details →Resources
Surge protection devices (SPD) explained
What surge protection is, why it is needed, Type 1/2/3 power SPDs and signal SPDs – a guide to selecting and installing surge protection for power and control systems.
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Lightning and surge protection for EV charging stations
Lightning and surge protection for EV charging stations: Type 1+2 AC SPDs, DC-side SPDs, data line protection and earthing.
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