Fire officials said the onset of summer and increased use of cooling appliances could be straining internal electrical systems across homes and commercial establishments. (Express file photo) From residential towers and scrapyards to bus depots and the airport, Mumbai has witnessed at least sixteen major fire incidents over the past month, raising concerns over whether soaring temperatures and increased electricity load are contributing to the spike in cases. The recent fires, reported across both the island city and suburbs, have left one person dead, two injured and caused significant financial losses. Amid the rise in incidents, the Brihanmumbai Municipal Corporation (BMC) on Wednesday issued an advisory asking citizens and commercial establishments to inspect electrical systems, gas pipelines and internal firefighting infrastructure.…