Safety is paramount in electrical work. When selecting transmission line hand tools, prioritize those with:

• Insulation Ratings: For insulated hand tools, look for certifications like IEC 60900 or ASTM F1505, indicating they are tested to specific voltage ratings (e.g., 1000V). The insulation must be intact and regularly inspected.

• Dielectric Strength: For hot sticks and live-line tools, ensure they are manufactured to standards like ASTM F711 and regularly tested for their dielectric integrity to prevent flashovers.

• Working Load Limit (WLL) / Safe Working Load (SWL): Tools like conductor grips, hoists, and pulling accessories must clearly display their WLL, and this limit should never be exceeded. Look for supporting test certificates.

• Ergonomics: Tools designed with comfortable, anti-slip grips and balanced weight distribution reduce operator fatigue and the risk of repetitive strain injuries.

• Fail-Safe Mechanisms: For hydraulic tools, features like pressure relief valves prevent over-pressurization, and automatic retraction (or release) mechanisms ensure safe operation.

• Durable Materials: High-strength, corrosion-resistant materials (e.g., forged steel, aircraft-grade aluminum, high-impact polymers) ensure tools withstand harsh environments and prolonged use without compromising safety.

• Compliance with Local Regulations: Always ensure tools meet specific national or regional safety standards and regulations (e.g., OSHA in the US, specific national electrical codes).