Comprehensive checklist for DN 14a mains jointing using electrofusion on polyethylene pipes up to 355 mm. Covers required tools such as cutters, control unit, clamps, scraper, and tent, plus safety controls including gas detection with a threshold of 20 LEL. Details pipe preparation, cleaning and scraping, marking penetration depth, aligning and restraining, and setting fusion times for manual or automatic fittings. Includes guidance on using end caps and a generator with the correct voltage and power, cooling periods, and post weld quality checks. Provides space to record printouts from the control unit and assessor sign off.
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