R.G. Parr

• A Method for Calculating Cyclic Rating Factors from Minimal Information About the Load Cycle
• A Method for Calculating Ratings for Cables in Multi-layer Groups on Trays
• Circuit Protection for Cables in Groups
• Current Rating Standards 69.30 Part VI. Sustained Current Ratings for PVC Insulated Cables to BS 6346:1969 (Ac 50Hz) in Multiplayer Groups on Trays
• Cyclic Ratings for Cables
• Formulae for Eddy-current Loss Factors in Single-point or Cross Bonded Cable Sheaths
• The Economical Application of Ambient and Group Rating Factors