Our Products

Specifically designed for the purpose of raising an alarm in the case of an emergency in a hazardous area. The call points can be made from selection of materials depending on project specification, including glass reinforced polyester (GRP), a light weight and corrosion free material, allowing easy installation and low maintenance cost, and stainless steel, a heavy duty, long wearing material with an increasing life span.

Beacons, including flashing, steady-state indicators and rotating units, provide solutions for potentially explosive and harsh environmental conditions. These may be used to warn of potential hazards or indicate the status of plant items, gas and oil leaks and evacuation alerts.

Horns and sounders are suitable for a wide variety of applications and feature a variety of tone settings and traditional bells. Sounders and Horns are used to warn of potentially dangerous situations or to relay instructions. In addition, the alarms may operate as stand-alone units or be incorporated into hazard warning system.  

Loudspeakers explosion protected, heavy duty, industrial and commercial speakers are designed to meet the requirements for public address, voice alarm and evacuation procedures.        

Designed for the purpose of alerting audio and visual awareness to an emergency situation.Suitable for use in harsh environmental conditions found offshore and onshore in the oil, gas and petrochemical industries.

Designed for potentially explosive atmospheres and harsh environmental conditions.Status lights are commonly found in oil, gas, petrochemical and other hazardous areas where multicoloured lamp combinations are used to identify the safety status of specific zones.

Standard and bespoke control and distribution units for harsh and hazardous areas. The control units are designed with convenient operation, safety and reliability in mind. As a leading manufacturer of hazardous area and explosion proof equipment, MEDC can provide hazardous and safe area control units in a range of dimensions to suit your required specification.

Composite metal and pure metal earthing conductors for lightning protection and grounding systems. Available in multiple material combinations and forms:

• Copper clad steel — round line (X3 series, Φ8–Φ24), flat wire, and stranded cable (GTJ series, 16–400mm²)
• Lead covered steel — round line (X1 series), flat wire, cable, and tape for strong acid/alkali/salt environments
• Lead covered copper — round line (X2 series), flat wire, and stranded cable
• Zinc covered steel — flat wire (X5-S) and round line (X5 series, Φ10–Φ25)
• Galvanized steel (HDG) — round bar (X6-Φ8–Φ12), flat wire, and stranded cable (X6-J series)
• Nano carbon anticorrosion — L-type, flat type, and round type (X10 series)
• Pure copper — round line (Φ8–Φ10), flat wire, tinned copper tape (X7 series)
• Flexible copper braid (TZ2 series) and tin braided copper belt (TZX2 series, 16–120mm²)

Ground electrodes for burial in soil, designed for long service life and corrosion resistance. Multiple material options to match soil conditions:

• Copper clad steel — Type A (TA3, Φ16–Φ60, 2500–6000mm) and Type B (TB3, Φ16–Φ22, 1200–1500mm)
• Lead covered steel — T1 series, Φ20–Φ55, 2500–3000mm
• Lead covered copper — T2 series, Φ12–Φ25, 2500mm
• Zinc covered steel — TA5/TB5 series, Φ20–Φ60, 1500–2500mm
• HDG seamless pipe — T6 series, Φ40–Φ60, 2500–6000mm
• Pure copper — TA7 series (Φ15–Φ20) and solid bars (TB7)
• Stainless steel — T8 series, Φ18–Φ20, for corrosive environments
• Thread & non-thread earthing bars — TB3 series (1/2″–3/4″ thread, 1200–3000mm)
• Earthing nets — copper and stainless steel mesh (600×600mm, 900×900mm)
• Earthing modules — cylindrical, quincuncial, and rectangular non-metal types with resistance-reducing agent

RZ series anti-corrosion steel pipe lightning rods for building and industrial lightning protection. Stainless steel needle tips with steel pipe or copper clad steel bodies:

• Normal type (RZ / RZ-A) — Heights 3000–12000mm
• Chimney type (RZY / RZY-A) — Heights 1000–2000mm
• Flat house type (RZP / RZP-A/B) — Heights 3000–10000mm, with concrete base anchor
• Side wall type (RZC / RZC-A) — Heights 3000–12000mm, wall-bracket mounting
• Conical set type (RZYZ) — Heights 15000–50000mm for large open areas (rated for 35m/s wind)
• Anti-seismic type (RZV) — Heights 1000–6000mm (ground) and 500–1200mm (high altitude)
• Early discharge type (RZ-T) — 25µs, 40µs, 60µs advance discharge; up to 120m protection radius for Class III buildings

Stainless steel / copper L-series connectors for joining earthing conductors. Circular-to-circular and flat-to-flat configurations:

• Circular linear (LLZ/LZ series) — Φ8–Φ25mm round conductors
• Circular T-type (LT series) — T-junction for Φ8–Φ22mm
• Circular cross-type (LX series) — Φ8–Φ14mm cross connectors
• Flat section linear (LZ series) — 3×30 to 10×30mm flat conductors

FLD series active grounding electrodes that continuously release electrolyte to lower soil resistivity. Ideal for rocky terrain, sandy soil, and high-salinity environments:

• Vertical type — FLD/T-30 (3m, copper), FLD/T-45 (4.5m, copper), FLD/B-30 (3m, stainless steel), FLD/B-45 (4.5m, stainless steel)
• Horizontal type — FLD/T-25L, FLD/T-30L (copper); FLD/B-25L, FLD/B-30L (stainless steel for high salinity)

Static electricity control solutions for flammable and explosive environments — oil and gas loading/unloading, chemical handling, and fuel transfer operations:

• Static grounding alarm (yj-b-1a) — Explosion-proof controller, 220VAC, IP65, exib (IB) IIb t5gb. Audible & visual alarm when grounding resistance >10Ω.
• Static earthing kits (QJ-B series) — Earth lead and plier clamps in 6–25mm²; static discharge reel and clamp (YJ-B-05) for vehicle fuelling and tank loading.
• Mobile earthing (YJ-B-1/2/1+2/4 types) — Explosion-proof (exib[IB]/MB, IP54–IP65) reels with 0.2–99Ω resistance display and self-locking grounding clamp.
• Automatic take-up earthing device (YJ-B-5) — 316L stainless steel reel for floating roof tanks. 23m cable, ≥50mm², spring tension ≥20kN, resistance ≤30mΩ. Compliant with GB15599-2009.

Thermite welding moulds for permanent, low-resistance molecular bonds between earthing conductors and ground electrodes. 13 mould series cover every conductor configuration:

• RLL series — Wire-to-wire (RLL1–RLL15)
• RDD series — Flat-to-flat (RDD1–RDD11)
• RDT series — Flat-to-rod (RDT1–RDT9)
• RLT series — Wire-to-rod (RLT1–RLT10)
• RLJ, RLB, RDB, RLG, RDG, RSG, RSB, RLY series — Specialist configurations for rail, bus bar, plate, and angle iron
• Also available: DFH-2 remote control exothermic welding primer

FLD/B-R series energy storage grounding devices for high soil resistivity and corrosive environments. The spherical conductor continuously releases electrolyte to reduce soil resistivity and can absorb lightning pulse current — reducing lightning peak current up to 10×:

• FLD/B-R-1: 129L, 120mm², 0.65m grounding ball (Part No. 0029A/B)
• FLD/B-R-2: 230L, 150mm², 0.8m grounding ball (Part No. 0030A/B)
• FLD/B-R-3: 360L, 240mm², 1.0m grounding ball (Part No. 0031A/B)
• FLD/B-R-4: 500L, 240mm², 1.2m grounding ball (Part No. 0032A/B)
• Stainless steel / copper; grounding resistance ≤1Ω at 35Ω·m soil resistivity