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Electric Fence Supplies Checklist: Ground Rods, Insulators, Gates and Testers

How many ground rods, what voltage to read in summer and winter, which insulators, how to carry power across a gate, and the parts we list for each.

Short answer: Manitoba Agriculture's electric-fencing guide calls for a "Minimum of 3 ground rods, each 6–8 ft (1.8–2.4 m) long." and says "Place rods ≥ 2 m from the energizer and ≥ 3 m apart." Its voltage targets are "Summer: ≥ 2,000 volts (dry ground, thinner hair coats)." and "Winter: ≥ 4,000 volts (thicker hair, snow/ice reduce grounding)." Below is that guide's equipment checklist, part by part, with the parts we list for each.

The Manitoba guide is written for cattle — it describes itself as "tailored for beef and dairy cattle across all seasons". It is a parts checklist, not a design for your fence: follow each manufacturer's instructions, and, as the guide puts it, "Follow manufacturer instructions and local regulations." For choosing the energizer itself, see our guide Electric Fence Energizer Sizing: How Many Joules Do You Need?. For poultry, sheep and goat nets, see Electric Netting for Chickens, Sheep and Goats: Choosing, Powering and Grounding a Net.

How many ground rods does an electric fence need?

The guide calls grounding the "Most Critical Component" and lists three rules:

  • "Minimum of 3 ground rods, each 6–8 ft (1.8–2.4 m) long."
  • "Place rods ≥ 2 m from the energizer and ≥ 3 m apart."
  • "Use galvanized rods, clamps, and wire for connections (resists corrosion)."

It also says: "Do not use copper to connect ground rods to the energizer—it corrodes."

Grounding parts we list:

How do you test an electric fence ground system?

The guide's test: short the fence to ground (its example is pressing a metal bar against a hot wire) and read the ground system with a voltmeter. Then: "If the ground rod reading is > 200 V, add more ground rods." and "A well-grounded system should read near 0 V at the ground rods."

What voltage should an electric fence read for cattle?

The guide's targets are "Summer: ≥ 2,000 volts (dry ground, thinner hair coats)." and "Winter: ≥ 4,000 volts (thicker hair, snow/ice reduce grounding)." Its installation checklist adds where to measure — "Test voltage: Aim for ≥2,000 V summer / ≥4,000 V winter at the far end of the fence." — and what to write down: "Record baseline: Note typical voltage readings for future troubleshooting."

For the maintenance side it says "Carry a voltmeter or fault finder". Testers we list (all in Testers & Voltmeters):

Where should the energizer go, and does it need lightning protection?

For placement the guide says "Install indoors, or where rodents cannot chew wires." and "Install a lightning diverter/arrestor to protect the fencer." Its safety section repeats: "Install lightning protection; isolate and de‑energize before repairs."

Which electric fence insulators should you use?

The guide's rule: "Choose high‑quality insulators that secure with two nails (top and bottom)." and "Single‑nail designs often leak power." For corners: "Tie corners properly; use porcelain or plastic strainers (both acceptable)." Check how each insulator fastens, and which post it fits, on its product page before you buy. Some of the insulators we list:

The full range is in Insulators.

Wire, polywire and polytape: what does the guide say?

For a permanent fence the guide says "Use 12½‑gauge galvanized high‑tensile wire." For a two-wire fence it also says "Bonding: Connect top and bottom wires together at least every ½ mile (0.8 km)." For temporary fencing it notes that "temporary tape should have ≥ 6 conductive strands" — check the conductor count printed on the package or the product page — and lists "Equipment: Wire reel, step‑in posts, and portable connectors."

How do you carry power across a gate?

The guide says "Use a quality gate kit." and "Install underground coated wire in conduit to carry power from one side of the gate to the other." Two of its don'ts apply here too: "Do not use gate wire to transfer power across a brace—use underground coated wire." and "Do not power barbed wire or use barbed wire on gates."

More handles, latches and anchors are in Gate Handles & Hardware.

Warning signs, safety and winter

The guide says "Post warning signs where public access is possible." and "Do not run electric wire alongside barbed wire." For winter it says "Do not leave fence tight over winter; contraction can misalign braces.", "Winter storage: If not in use, store energizer in a clean, dry place." and "Solar systems: Fully charge batteries before winter storage; check panels and leads."

Other fence parts we list

The parts named above are examples. These are the other fencing parts on pipestonefarmsupply.ca that the sections above cover; check each product page for size, length and fit before you buy.

Everything else for the fence line is in Fencing.

Fence alerts, fault finders, lightning protection and signs:

Sources: Manitoba Agriculture, "Everything You Need to Know About Electric Fencing" (Electric Fencing for Livestock: A Practical, Professional Guide), gov.mb.ca, viewed October 2026. Product names as listed on pipestonefarmsupply.ca.