import re

def split_string(s):
    pattern = r'(\w+)-(\w+)-(\d{4})-(\d{2}-\d{2})'
    match = re.match(pattern, s)
    if match:
        return match.groups()
    else:
        return None

s = "配电-CQP001公园配电室-2023-7-3"
result = split_string(s)
print(result)

运行上述代码，将得到结果：('配电', 'CQP001', '公园配电室', '2023-7-3')。